Who Invented Drones

So, Who Invented Drones?

Drones, aka unmanned aerial vehicles, are often considered a 21st-century gizmo. But they actually go back over a century. So, who invented the first UAV? 

The credit doesn’t go to one single person because the technology advanced in stages, along with wider shifts in scientific knowledge and manufacturing. But one of the pioneers was Archibald Montgomery Low, who developed and flew the first actual remote-controlled unmanned aircraft in 1917. His accomplishments have earned him the title “father of drones”. 

Yet, drone technology also hinges on the advances made by Nikola Tesla, earlier in the 19th century, as well as Peter Cooper, Reginald Denny, and Max Boucher, among others, later in the 20th century. 

The Origins of UAV Technology

To understand how drones became possible, let’s go back to the late 19th century. It’s the Electrical Exhibition day in Madison Square Garden, New York, and Nikola Tesla is demonstrating his latest research: a radio-controlled boat

While it looked like a present-day toy, the four-foot-long model torpedo boat was a true breakthrough back then. Tesla could wirelessly control the boat’s movement, direction, and lights, using radio waves transmitted from a control box.  Though not an aerial device, Tesla’s invention established fundamental principles of remote control that would later enable modern-day drone technology.

During an anticipatory address, Tesla proposed that the remote control technology would one day render war impossible since even lesser countries would have an effective defense mechanism — a prediction that didn’t quite hold because counter-drone technology developed pretty much at the same pace.  But his ideas, along with Marconi’s invention of the radio transmitter in 1895, indeed were a stepping stone for military UAVs. 

Invention of Military Drones During World War I 

The very first real unmanned aerial vehicles controlled from the ground emerged during World War I. The greatest pioneer in this technology was British engineer Archibald Montgomery Low, who is popularly known as the “father of the drone” or “the father of radio guidance systems”.

In 1916, as an employee of the British military, Low created the Aerial Target, which became the world’s first radio-controlled aircraft. By using compressed air (an innovation in itself!), Low’s team successfully showed remote vehicle control during the short flight of the pioneering aircraft on March 21, 1917. Equipped with a single film camera, Aerial Target was the first drone with a camera. 

During subsequent years, Low continued to tinker with the design and created an electrically powered gyroscope — a key precursor for modern-era internal navigation systems (INS). He also created an early electrically-steered rocket, foreshadowing World War II weaponry. 

Meanwhile, in the US, a father-son Sperry duo and inventor Peter Cooper Hewitt were working on an “Hewitt-Sperry Automatic Airplane” project — an unmanned aircraft for carring explosives. 

In the 1930s, Reginald Denny, a British actor and aviation enthusiast, took the technology further. He created the first purpose-designed drone, the Radioplane OQ-2, used to train anti-aircraft gunners during the World War II.

Source: National Museum of the United States Air Force 

France’s military pilot Max Boucher also played an important part in the growth of unmanned aviation. His unmanned aircraft, with a wingspan of 15 meters, a length of 10 meters, and a weight of 500 kg, carried out several successful flights, proving the value of autonomous reconnaissance missions.  

Following World War I and II, drone technology for drones improved further. The Radioplane Company started experimenting with the use of mounted pulse jets in place of propellers. The decade witnessed quick technological advancements that would go on to develop present-day military and commercial drones.

The Rise of Compact, Commercial Drones 

The first hobbyist drones started to crop up during the late 1990s. Canadian Draganfly launched Draganflyer in 1999 — one of the first commercial quadcopters with a camera.

French Parrot was established in 1994 and started capturing market share in the 2010s after releasing the first line-up of smartphone-controlled camera drones. 

DJI, founded in 2006, further popularized the consumer drone segment. Its Phantom lineup, introduced early in the 2010s, married premium-quality cameras and intuitive controls into an affordable, accessible product for hobbyists as well as professional use. 

Today, there are hundreds of drone manufacturers, ranging from large multinational corporations to specialized startups, producing MilTech, industrial inspection, agriculture, and mapping drones. You can learn more about market leaders from our UAV Directory

gps spoofers

TOP 6 Drone GPS Spoofers

UAV navigation hinges on GPS/GNSS signal availability. If the signal’s down, your drone follows the same trajectory. Such scenarios are really easy to orchestrate because drone GPS spoofers can be easily bought online. Our team lined up the best commercial models you can get for security tests, personal safety, or professional operations. 

HackRF One

One of the cheapest drone jamming tools is a software-defined radio (SDR) like HackRF One. Sold freely online for under $300 a pop, the tiny board can hop between read, transmit, and hop between a range of commonly used drone radio frequencies. With the right tweaks and some course code from public repositories, you can fool drones into chasing ghost coordinates or panicking over bogus no-fly zones. But because HackRF One has limited power output, the spoofing range is just under a few hundred meters. 

SZMID UAD-GQ03

Chinese SZMID sells a roster of counter-drone technologies — RF detectors, portable drone jamming guns, and a broad spectrum radio jammer at a price range of $150 to $300. It’s compact UAD-GQ03 supports freely programmable frequency bands (from 20MHz to 6GHz) and can be combined with drone detection and spoofing systems for networked operations. To boot, it comes with open-circuit and short-circuit protection, RF protection, and internal power safeguards against electric tampering, making it rather effective for field operations. 

AL ASAR TECH Portable UAV GPS Spoofer 

Shenzhen-based AL ASAR is another vendor of affordable drone GPS jamming devices. The portable GNSS GALILEO Satellite Navigation Spoof System can cause multi-band interferences within a 500-meter radius, institute no-fly zones, or force emergency landing.  With a weight of under 5 kg and an integrated battery of 10Ah, it’s a sturdy gear you can take into the field. Unlike other popular GPS spoofers, this device can also meddle with GLONASS, BDS, and GALILEO frequencies. 

WRJ-02 Drone Gun

WRJ-02 is a more expensive gear, retailing from $6K. But it also has close to military-grade capabilities (despite being sold freely) — an extended 1.5GHz, 2.4GHz, and 5.8GHz range, 500-1000 meter jamming range, and a unique segmented jamming function. You can either jam the GPS signal to force a return to home. Or fiddle with image transmission or UAV controls to cause equipment loss. If you activate all three modes at the same time, the drone will be forced to land. 

AXPY3000 by AxEnd, Inc.

California-based AxEdn offers one of the best GPS spoofers for drones in terms of coverage. AXPY3000, the flagship device, has a deflection angle of Horizontal 360° Vertical ±90°, an operating range of an impressive 3km, and five-band frequency support (GPS L1/L2, BDS B1/B2, and GLONASS L1. An IP65 protection rating and temperature operating range of 40°C to +65°C make it a super-strurdy and reliable device for repelling drone traffic. 

ND-BG002 GPS Spoofing Jammer

If you have a bigger budget, NovoQuad Group’s ND-BG002 GPS Spoofing device can be a great investment. It’s a newer generation of tools that uses simulated satellite technology to overpower genuine GNSS signals, redirecting drones to predefined coordinates within a 500 to 3 km range. Ethernet interface provides centralized control, allowing real-time coordination with radar and RF detectors for networked threat response.

Best Drone GPS Spoofers Comparison 

ModelOperating RangeFrequencesKey FeaturesPrice 
HackRF One200 mGPS L1 (requires TCXO upgrade for stable spoofing)Open-source SDR, DIY configuration, requires technical expertise$300
SZMID UAD-GQ031,000 m2.4 GHz, 5.8 GHz, GPSPortable design, multi-band jamming, adjustable power$150-$200
AL ASAR TECH Portable UAV GPS Spoofer500 mGPS L1, GLONASS G1, BDS B1, GALILEO E1Suitcase design, directional spoofing, low-power operationOn request
WRJ-02 Drone Gun500-1,000 m1.5 GHz (GPS), 2.4 GHz, 5.8 GHzSegmented jamming, battery-powered, gun-style targeting$6,129
AXPY3000 by AxEnd, Inc.1-30 kmGPS L1/L2/L5, GLONASS L1/L2, BDS B1/B2, GALILEO E1, QZSS L1Military-grade, IP65-rated, radar integration, 360° coverageOn request
ND-BG002 GPS Spoofing Jammer500 m-3 kmGPS, GLONASS, GalileoAdjustable jamming distance (-38 to 32 dBm), centralized controlOn request

Fly UAVs without Disruption with Bavovna 

For every weapon, there’s a counterstrike — and in the drone world, that’s Bavovna’s AI Navigation Kit. 

At Bavovna, we built an AI-powered hybrid INS system designed to outsmart regular GPS spoofers. Housed in a hardened EW case, our kit enables precise navigation in GPS-denied zones, smooth flight through jammed airspace, and fully autonomous operation — no map or signal required.

Learn more about Bavovna’s AI Navigation Kit.

counter drone

Counter Drone Technology Overview

UAVs aren’t just for shooting cool vacay videos or doing industrial asset inspections. With some tinkering, even a simple starter drone can become a real danger to public safety. In the actual conflict zones, anti-drone systems are saturating strategic locations. 

As the adage goes, awareness is the first line of defense. So, we prepared this quick brief about counter-drone technology. 

Common Types of Counter-Drone Systems

Whether you’re seeking protection or, on the contrary, want to understand the threats looming in contested airspace, here’s an overview of the most common counter-drone technology. 

RF Scanners and Jammers 

Radiofrequency drone scanners tune it to the spectrums, frequently used by most commercial drones to communicate with their controller. An RF scanner can easily detect, identify, and triangulate signals at 4 GHz and 5.8 GHz bands. The cheapest ones cost around $30 on Aliexpress or $80 on eBay. A more expensive $400 hand-held detector, in turn, offers detection capabilities up to a 1 km/0.6 miles range.  

RF Scanners and Jammers

More advanced RF scanners can also decode transmitted metadata like drone model, operator location, or even its unique identifier, enabling drone detection without a line of sight.

Coupled with an RF jammer, this counter-drone technology can effectively take out cruising UAVs using: 

  • Noise jamming: Floods frequencies with random signals to overwhelm the receiver and disrupt the connection link. 
  • Deceptive jamming: Transmits false navigation data to jumble navigation paths or even overtake drone control. 
  • Barrage jamming: Blocks multiple frequencies simultaneously to take down the drone. 

For example, an anti-drone gun from DroneShield creates signal interferences at 433 MHz, 915 MHz, 2.4 GHz, and 5.8 GHz frequencies at a distance of up to 2 km/1.25 miles

DF-1 (Dome Protection) Electronic Warfare Complex from PIRANHA TECH Ltd offers even better protection with omnidirectional radio jamming in the ranges of 300 to 5900 mHz. Thanks to its compact size, it can be mounted on both buildings and vehicles to safeguard critical assets. 

Generally, RF drone jammers can cause major havoc unless you use counter strategies like frequency-hopping, signal encryption, or fully autonomous drone flight modes. 

Electro-Optical (EO) Systems

EO counter-drone systems combine HD cameras with thermal sensors to detect passing drones — their shape, movement patterns, and contrast against the background. Modern EO sensors have ultra-high sensitivity in the range of 0.001 to 0.01 lux, allowing effective drone detection at night or during low-light conditions. 

Top-of-the-range EO drone detection equipment like Elbit Systems’ ReDrone™ or EOS R500 Remote Weapon System also features integrated computer vision for even sharper detection. 

EOS R500 Remote Weapon System

Once a drone is visually confirmed, the EO system can continuously track it, providing detailed data such as flight path, altitude, and speed. Or it can transmit a signal to a connected RF drone jammer to take it down. 

Acoustic Sensors 

Simpler anti-drone systems use acoustic sensors to detect noise signatures from passing drones, such as propeller whirring and motor humming. Using a library of known drone signatures, the system can then identify specific drone models and estimate their location and direction of movement. 

A standard acoustic drone detection system usually operates in the 20 Hz and 20 kHz range, with most attuned to the 1 kHz to 10 kHz range where drone propeller and motor noise is most audible. Ukrainian military forces, for example, have built a highly effective (and low-cost) acoustic drone detection network around the country, now eyed by the US military. 

For extra precision, some acoustic drone detection systems may also leverage neural networks. Generally, acoustic sensors are deployed as an alternative to RF drone jammers in urban or manufacturing areas, where RF signal noise is high and visual detection is limited.  

Radar Systems 

Counter drone radar systems monitor for drones entering the surveilled perimeter. By analyzing reflected radio waves, an anti-drone radar can estimate the UAV’s position, speed, altitude, and trajectory. And then alert the ground team to take action. 

Unlike optical or acoustic drone detection systems, even the cheapest radars work effectively in all weather conditions and don’t require a direct line of sight, enabling long-range drone detection. More advanced ones, in turn, can even detect smaller, low-flying FPV drones with high accuracy. 

Counter drone radar systems monitor

Again, anyone can purchase drone detection radars online these days on online marketplaces, with the price tag starting at about $7,000 per two sets

GPS Drone Spoofers 

GPS drone spoofers are arguably the most deployed counter-drone technology. Cheap and effective, they swap the legitimate signal for a fake one to send the UAV off course or force it to return to a fake home location.

Technically, GPS spoofers produce GPS L1 or L2 signals (1.57542 GHz and 1.2276 GHz, respectively), using synchronized timing and data structures to imitate satellite constellations. Advanced models may also adjust the timing and Doppler shift of their signals to make the deception more convincing for unsuspecting vehicles. 

GPS Drone Spoofers 

The cheapest GPS spoofers retail for just under $200 online, while military-grade ones go for up to $100K. The latter have a longer range, higher signal precision, and more sophisticated controls. Some models, like the KVERTUS AD G-6 anti-drone gun, also combine GPS and RF jamming to fully disorient the drone. At any rate, your best odds of ‘surviving the encounter’ is to switch to an alternative navigation mode, for example, using data from INS

High-Power Microwave (HPM) Devices  

Moving on to the realm of military-grade anti-drone weapons, we have the new breed of HMP anti-drone systems, actively tested by several governments.  Such devices emit highly concentrated electromagnetic energy bursts (at a 300 MHz and 300 GHz range) to effectively “fry” the drone’s electronics. 

The advantages of HPM systems:

  • No reliance on visual, acoustic, or RF signatures
  • Ultra-fast response even to multiple targets (e.g., in drone swarm attack scenarios) 
  • Non-lethal for operators or invisible bystanders
High-Power Microwave (HPM) Devices  

The obvious downside is the cost. HPMs retail for several million dollars. For example, the four  HPM counter-swarm system prototypes commissioned by the US military cost $66 million. 

Laser Anti-Drone Systems

Laser anti-drone systems are another proven method for destroying hostile UAVs. A focused beam hits the drone’s propellers, sensors, or onboard electronics until they melt, and the drone crashes. 

Most laser drone guns include EO or infrared tracking to lock onto the moving target, maintain focus, and then fire a near-instantaneous laser pulse to take it down. This allows for great accuracy and minimizes collateral damage. On the downside, the system’s effectiveness goes down with atmospheric conditions such as dust, fog, rain, or smoke as these scatter or absorb the beam. 

Cruise Without Disruption with Bavovna’s AI Kit 

Counter-drone technologies like GPS spoofers, RF jammers, and EW drone guns have become really affordable and easy to purchase. But counter techniques evolve, too.

At Bavovna, we’ve developed a hybrid INS system, powered by AI to safely fly in hostile environments. Hosted in a protective EW case, our AI kit enables seamless navigation in GPS-denied environments, safe cruising through jammed areas, and even fully autonomous flights. 

Bavovna’s AI Navigation Kit Specs

Learn more about Bavovna’s AI Navigation Kit.

lidar uav

LiDAR UAV: Is It Worth an Investment?

In 2016, the U.S. Federal Aviation Administration (FAA) authorized using drones weighing 55 pounds or less. LiDAR UAV mapping was one of the first new use cases, used to survey vegetation enrichment across power lines. 

Almost a decade later, LiDAR UAV sensors and payloads are plenty to go around. But are they a good investment? Here’s our take. 

Advantages of a UAV LiDAR Sensor

LiDAR is kind of like echolocation but with light — it measures distance by bouncing laser beams off objects. This capability adds some major improvements to autonomous navigation, obstacle detection, and land surveying. 

Autonomous Navigation in GPS-Denied Environments

UAV LiDAR sensors allow drones to stay on the flight path even when the GPS signal is weak or absent. Thanks to Simultaneous Localization and Mapping (SLAM), drones can be programmed to create a live 3D map of the surroundings to localize itself. For instance, Flyability Elios 3 uses a combination of computer vision, LiDAR payload, and an NVIDIA GPU to instantaneously create a live point cloud for indoor navigation.  

SLAM enables a host of drone use cases in mining — shaft and tunnel exploration, geotechnical stability analysis, and terrain mapping among others. Likewise, it improves indoor drone deployments in large warehouses or storage tanks, where GNSS signal interference is high. 

Real-Time Obstacle Detection and Avoidance

LiDAR lends UAVs extra ‘sensing powers’ for early obstacle detection and avoidance. Modern sensors emit laser pulses in all directions (often with a spinning scanner or multi-beam setup), giving the drone a 360° situational awareness without relying on a pilot camera. 

State-of-the-art LiDAR-based collision avoidance systems can compute avoidance trajectories for drones in just 50 milliseconds. In practice, this means a UAV can traverse complex terrains — busy urban areas, industrial sites, or forests with dense vegetation — even in full auto-pilot mode

Cost-Effective Surveying and Mapping 

Mapping is arguably where LiDAR makes the most difference. Specialized LiDAR payloads measure the ground distance with centimeter-level precision, supplying surveyors with detailed digital terrain models (DTMs) and digital surface models (DSMs). 

Because the best long-range drones can fly relatively low and slow (thanks to a bigger battery), you can collect a high density of points, capturing fine terrain features like narrow power lines or moving animals in less time. Topographic surveys, which used to take weeks with conventional methods, can now be done in a day

Disadvantages of a UAV LiDAR

Adding LiDAR sensors to drones unlocks new enviable capabilities. But just like with any other technology, there are several tradeoffs. 

Higher Power Consumption 

UAV LiDAR sensors are on the bulky side, meaning less stability and reduced flight time.  Flyability Elios 3 drone has a regular flight time of 12 minutes, which drops to just 9 when 

A LiDAR payload is mounted. For VTOLs with bigger batteries, high power consumption is less of a pickle. However, ensuring proper power management for a custom LiDAR payload can require some structural modifications. 

High Price Tag 

Compared to a decade ago, LiDAR UAV technology has become more affordable. Still, the cost of an entry-level drone LiDAR systems start at around $2,000 to $5,000. If you want higher precision systems with embedded quality assurance for commercial or tactical applications, be prepared to spend north of $20K. 

Positioning Accuracy

The accuracy of LiDAR data depends on the drone’s positioning system. Standard GNSS receivers in starter drones offer positional accuracy of about 5-10 meters, which isn’t enough for mapping use cases.  For better results, you’ll need  Differential GNSS systems like RTK or PPK improve positional accuracy to 1-2 centimeters. But this means extra investment and dependency on GPS signal quality. 

Alternatives to LiDAR for Smooth Navigation

If you’re main use case for LiDAR UAV is (semi)autonomous navigation in GPS-denined environments, there’s a great alternative to LiDAR — Bavovna’s AI Navigation Kit.  

Unlike expensive and bulky LiDAR systems, Bavovna’s device is low SWAP. The max current consumption is just 10A, and it’s compatible with a standard +5V power supply. Instead of using LiDAR, Bavovna applies AI fusion to process UAV INS data and supply the drone with situational awareness. Custom-trained on live flight data, our system has an 

end point positioning error of under 0.5% in GPS-denined environments. 

Learn more about Bavovna’s AI Navigation Kit

best starter drone

Best Starter Drones in 2025

Soaring into the air has never been easier (or cheaper), thanks to a growing selection of starter drones on the market. There are starter drones for kids retailing for under $25 and more advanced models for videography, racing, inspections, and FPV flights.

At Bavovna, we spend a lot of time, testing different drone models as we train models for AI navigation. And a good part of our team are also avid drone hobbyists. So if you’re in the market for a new quad, here are recs of the best starter drones. 

Best Starter Drone With Camera: DJI Mini 4 Pro 

DJI Mini 4 Pro starter drone

DJI is almost eponymous with the ‘camera drone’. They’ve got several great beginner drones including NEO, Mavic Mini, and Air 2S. But we prefer DJI Mini 3 because it offers a premium drone photography experience without a premium price. 

Lightweight and portable, DJI Mini 3 can cruise for up to 50 minutes (in good flight conditions and with Intelligent Flight Battery Plus add-on). Otherwise, it’s a good 20 to 30 minutes of flight time — more than enough to capture some scenic shots. Extra features like QuickShots mode can help you snap even more content with its  12MP camera with 4K video capabilities. 

A DJI Mini 3 is the best starter drone because of its robust safety features: Geofencing, infrared collision sensors, a downward vision system, and automatic return-to-home when your battery runs out or your connection lags. Overall, DJI Mini 3 offers an affordable gateway into drone videography, making it easy to capture stunning aerial shots—without the complexity of pro-level models.

Runner Ups:

Best Starter FPV Drone: Eachine Novice VI

Eachine Novice VI Starter Drone

Eachine Novice IV is easy to start using, plus it’s packed with pro features to explore as you advance—so you’ll never hit a ceiling. It comes assembled, bound to the radio controller, and the right video channel matched with your goggles aka ready-to-fly. 

Battery life is commendable: about 20 minutes with a stock battery and 30 minutes with an alternative 4S 18650 3000mah. An integrated 1080p camera captures detailed, crisp shots with a 3-axis gimbal preventing motion blur. Hold and headless modes also make novice FVP flying easier and GPS Rescue helps with faster drone retrievals in case your mission went rogue. 

Runner Ups:

Best Starter Drone for Inspections: Skydio X10

Skydio X10 Starter Drone

Skydio X10 is a compact yet long-range drone with an ample flight time of 40 minutes, thanks to an 8419 mAh lithium-ion polymer battery — more than enough to run inspections around larger industrial sites. 

Featuring a triple sensor array—narrow, telephoto, and radiometric thermal cameras— the drone shoots HD footage even in low-light conditions. A  22 lux flashlight also helps. Plus you can opt for an array with a thermal  FLIR Boson+ sensor, offering sensitivity down to 30 mK and a resolution of 640 x 512 px.  

All of these characteristics make SkydioX10 a stellar choice for condition-based asset monitoring programs. 

Runner Ups:

Best Starter Racing Drone: EMAX Tinyhawk III  

EMAX Tinyhawk III Starter Drone

Retailing for about $260 (with all accessories), EMAX Tinyhawk III is a great entry-level racing drone, packed with some solid features. The pre-installed 1S 450 mAh battery system gives about 4-5 minutes in flight time but can be easily swapped for a more robust option. 

With a durable, but lightweight body and propeller protection, Tinyhawk III can withstand the (inevitable) light collisions and bumpy landings, giving you ample room to practice. An improved control system (an EMAX E8 transmitter) offers faster navigation response during swift maneuvers. 

The integrated RunCam Nano 4 FPV camera offers crisp, real-time footage for immersive flights. The triple-combo of affordability, performance, and user-friendly navigation make  EMAX Tinyhawk III a great option for building up your FVP skills. 

Runner Ups:

Discover even more drone recommendations in Bavovna’s UAV directory

uav parts

Where to Buy UAV Parts? Top Recommendations

Whether you just had an unfortunate ‘incident’ with a tree or want to upgrade a VTOL with a new motor for extra flight time, you gotta know where to source UAV parts. 

There are loads of drone parts suppliers on the market — and even more online resellers. To save you time, we’ve put down the list of sites where we’d shop any day for UAV parts and custom-made components. 

3 Places to Get UAV Parts for Leisure and Starter Drones 

If you need some spares for your beginner drone like an extra battery or new propellers for a racer drone, the following websites offer some good deals. 

Banggood. 

If you’re looking for affordable UAV parts, Banggood is a good place to start. The Chinese e-commerce marketplace pedals a lot of wares from mostly Asian-based sellers. The prices are on the cheaper side, but quality can be hit or miss. So always read the reviews. 

GetFVP 

As it says on the tin, GetFPV sells loads of racing FPV drones, along with popular camera drones from DJI, HOVERAir, and Lumenier. Plus, you can find spare parts for all of these manufacturers and others — electronics, frames, propellers, and extra batteries. The goods ship from the US, so delivery times are fast if you’re in North America. 

QuadPartPiker 

QuadPartPicker is a good option for more prolific builders. It offers a bigger selection of quad parts, including flight controllers, receivers, ESCs, frames, and video transmitters. Their jumbo-sized catalog is nicely organized with extra filters to narrow down your selection by size, power, frequency, or another characteristic. Sold brands include Walksnail, Flywoo, AxisFlying, and Happymodel among others. 

3 Suppliers of UAV Parts for Commercial Drones and VTOLs 

You may find the following companies to be great partners if you are looking to build UAV platforms and VTOLs. 

UAVOS 

UAVOS, operating out of Mountain View, California, has built its reputation as a reliable UAV supplier, trusted by the likes of NASA and GRADEONE. Its autopilot models are particularly worthy of attention. Available for fixed-wing and rotary UAVs with a takeoff range of 15 kg to 4000 kg, the autopilot supports dead-reckoning, GPS-denied navigation, automatic take-off and landing, full payload control, and feedback. 

Apart from autopilots, UAVOS also develops frames, servo drives, engines, and ground control units. You can also request fully custom drone construction services or lease their equipment, instead of buying. 

H3Dynamics 

If you’re in the market for a hydrogen-powered UAV engine, H3 Dynamics offers ultra-light hydrogen fuel cell systems with 250W to 2000W nominal power. Their lightest PEM fuel cell stack weighs only 720 gr (1.6 lbs) — a great option for smaller, tactical UAVs. The system is plug-and-play and includes performance data transmission and software for viewing it.  

For long-duration field missions, the team also offers a mobile automatic refilling trailer for safely producing hydrogen from water. Using onboard technology, you can refill a 9L – 350 bar cylinder in under 2.5 hours or faster (depending on the configuration). The conversion process is fully automatic
with little human supervision required. 

Refitech 

Dutch Refitech has been producing custom composite solutions for construction, defense, and more recently — the drone industry — since 1989. They’re best known for light-weight high-endurance, custom-made composite frames for fixed wings, quadcopters, VTOLs, and gyrocopters. 

The company can produce custom-designed drone bodies, based on your specs or hook you up with a good selection of standard carbon tubes and panels for drone construction. They also offer ready-to-fit (sub)assemblies for those seeking faster time-to-market.

Discover even more drone parts manufacturers in Bavovna’s UAV directory

Ryze Tello

Top Five Best Drones for Beginners

If you’re buying your first-ever drone, there are four things to consider

  1. Stabilisation features. As not yet a very experienced pilot, you’d want a gliding drone with GPS stabilization, which automatically maintains a steady flight path and minimizes drift. Models with even a basic gyroscope and accelerometer also add extra “fineness” to your flight and footage. 
  1. Safety controls like automatic return-to-home, hoover on lost signal, geo-fencing, and obstacle avoidance also reduce the odds of drone crash or loss several days after purchasing. 
  1. Battery life. The cheapest beginner drones have a flight time of 10 minutes, which is hardly enough to really enjoy the experience or hone your skills, not mention capture some decent shots. Pay some extra money for a starter drone with a 1500mAh 4S battery. 
  1. User-friendly piloting app. Spend as much time on checking out the piloting app as reviewing the drone itself. You’d want software with intuitive controls and a convenient smartphone app. The must-have features for beginners are altitude hold, headless mode, and auto-hovering. 

Here are five models that fit the above description to the dot. 

DJI NEO

DJI NEO is arguably the most affordable videography drone on the market right now, with a going price of under $200. At 135 g (4.8 oz), the drone can be flown in every country without any UAV authorization. (Although you should still maintain common sense safety rules like avoiding people overflight or cruising in restricted zones).

But for its tiny size, DJI NEO offers some mighty fine filming features: 4K video, 12MP stills, presets for auto-shooting from different dynamic angles, vertical video recording, and voice-activated control. 

Ryze Tello 

If you’re looking for a cheap, mostly indoor beginner drone, Ryze Tello can be loads of fun. It’s ridiculously simple to control using the app and flight controller combo. And you can add FVI goggles for extra giggles if you’re training your racing skills. On the downside, the flight time is just 13 minutes and the max flight distance is 100 m/328 ft, so it’s definitely not the best drone for filming outdoorsy escapades.  


Potensic ATOM SE

Foldable ATOM SE boasts build quality. It’s sturdy, durable, but still lightweight (250 grams/8.8 ounces) to not fall under commercial drone regulations. The 4 km / 13,123 ft transmission range gives you ample room to shoot some great stills with a Sony 12MP CMOS sensor camera with a 118° FOV and a vertical +20° to -90° adjustment angle. 

ATOM SE can stay in the air for about 30 minutes at low altitudes, with no wind conditions. But the flight duration and quality drop a lot if you’re out on a windy day. 


Parrot ANAFI Ai 

If you have extra cash to spare for a more professional drone, ANAFI Ai hooks you up with a roster of incredible features for autonomous photogrammetry. The 48 MP camera with a 14 EV dynamic range and 6x zoom shoots the crispest images, even at high flight speeds. 

The video is of stellar quality too: 4K video, including in P-Log and HDR10 4K videos up to 30 fps. And those planning some UAV mapping missions would appreciate specialized photogrammetry flight modes available in the drone app and 1-click flight plan creation.


HappyModel BNF Crux35

As a beginner racing drone, we can full-heartedly recommend HappyModel BNF Crux35. Retailing for under $150, the FPV drone touts an EX1404  high-efficiency motor and HQPROP 3.5-inch three-blade propeller for a robust thrust-to-weight ratio. With a 4S 850mAh battery, you’ll get about 16 minutes of flight time (but that’s all subject to how fast you choose to go). 

The FPV camera isn’t amazing (although you can easily replace it with a better alternative). This is a good starter racing drone that won’t hurt you too much if you crash it. 

Discover even more drone recommendations in Bavovna’s UAV directory

Remote Operated Vehicles

How Remote Operated Vehicles (ROVs) Generate Efficiency Underwater 

A remotely operated vehicle (ROV) is an autonomous, unmanned submersible used in underwater missions. Highly maneuverable, low-energy, and equipped with advanced robotics and AI, ROVs streamline underwater inspections and provide new knowledge of the global oceans. 

Here’s how remote operation vehicles make waves (pun intended) in maritime operations, the oil and gas industry, sea farming, and oceanography. 

Top 3 Remotely Operated Vehicle Use Cases 

Top-of-the-line ROVs have 4K resolution, wide lens cameras, and auto-color correction for crisp underwater imagery. Strong LED lights give visibility in murky environments. Some models may be tethered for communication with the operator, while others use AI-powered autonomous navigation.

Depending on the use case, a remotely operated vehicle can feature a robotic arm for contact manipulations, imaging sonar for 3D mapping and obstacle detection, plus onboard data processing units. 

These characteristics make the following underwater operations possible. 

Asset Inspections 

ROVs can replace divers on tedious and dangerous underwater missions. In the oil & gas industry, offshore platform operators use ROVs to inspect for structural corrosion, cracks, and other deformations. Some models also have specialized ultrasonic gauges to detect thickness loss in pipelines or rinsers or perform weld seam inspections for signs of fatigue.

Petrobras uses a fleet of ROVs to carry out inspection, maintenance, and repair of underwater equipment along the Brazilian coast. TAQA Netherlands also deployed uncrewed surface vessels for integrity inspections of shallow water infrastructure in the North Sea.

Similarly, ROVs have become the go-to tool for routine inspections in the maritime industry. Offering faster turn-around and lower costs, remote-operated vehicles can be used for hull, rudder, propeller, and anchor inspections. Norwegian Coastguard recently enlisted a Blueye Robotics’ X3 ROV to run hull inspections. 

Underwater Pipeline Surveying

Underwater pipeline leaks cost oil and gas operators millions in revenue loss and regulatory fines. ROVs can survey up to 25 km (15.5 miles) of underwater pipelines daily, helping operators manage maintenance. Specialized models with NDT tools can also detect early-stage pipe thinning for preventive strategies. And micro-ROVs can inspect pipelines from the inside through access points as small as 19-inch manholes.

Total Energies recently completed a pilot pipeline inspection program in the North Sea with Freedom AUV. The vehicle inspected over 120 km (75 miles) of submarine pipelines and 60km (37 miles) of near-shore pipelines for structural defects, with all data acquired in a single pass. 

Sustainability Initiatives 

ROVs have also become a staple in oceanography, helping scientists learn about marine life, pollution levels, and oceanic ecosystem trends. Besides data acquisition, they help drive meaningful change and offset environmental impacts.

Norwegian seafood producer Mowi increased its ROV deployments by 40% over the last year to support new initiatives for improved fish welfare. ROVs help remove dead fish from net pens, segregate jellyfish, and clean up harmful algae blooms. Thanks to the innovation, Mowi Scotland achieved a 96% superior-grade fish at harvest, while improving its animal welfare standards.

Chevron, in turn, deployed a pair of mini-ROVs — one providing visuals to the operator and the second doing the scrubbing — to clean underwater platform structures from unwanted marine growth. The compact ROV minimizes diver use and contributes to cleaner global waters.

Remote-operated vehicles also have dozens of other already feasible deployment scenarios and even more possible ones with greater adoption of AI-powered navigation systems. Some ROV use cases are currently limited by poor connectivity in the seas. At Bavovna, aim to solve this problem with AI. Compatible with both UAVs and ROVs, our INS brings the power of AI sensor fusion and autonomous navigation in GPS-denied environments. Learn more about our AI hybrid-INS system.

inertial navigation unit

How to Compensate for Drone Inertial Navigation Unit Deficiencies 

An internal navigation system (INS) provides extra situational awareness to UAVs, complementing other navigation units like GNSS, SLAM, or LIDAR-based systems. Working independently of satellites, an INS is great for countering GPS signal loss or targeted UAV jamming. But most commercial internal navigation units in drones aren’t without some critical shortcomings. 

Shortcomings of Commercial UAV Inertial Navigation Units

Most top-of-the-shelf drones are pre-furbished with internal navigation units that still require external data sources like a ground station or fusion with other sensors for autonomous navigation in GPS-denied environments. More advanced UAVs may feature better units, but they’re still susceptible to a range of issues. 

Sensitivity to Environmental Conditions 

MEMS-based inertial navigation units exhibit performance degradation under high temperatures, rapid temperature cycling, composite stress, high vibrations, and electromagnetic interference (e.g., from nearby equipment or transmission towers). High-end internal navigation systems can run smooth at a -40°C to 85°C (-40°F to 185°F) range and maintain very low bias residual errors. But they also come at a premium price tag and may not be compatible with all drone models. 

Sensor Drift 

Most INS require initial initialization and regular calibration to compensate for the inevitable drift, leading to cumulative velocity or displacement errors during flights in GPS-denied environments. 

The common types of sensor drift in drone internal navigation units include: 

  • Zero-offset (bias) drift occurs when sensor readings are inaccurate due to ongoing errors.
  • Integration drift accumulates over time due to different errors in gyroscope and accelerometer readings. 
  • Scale factor errors due to quick temperature cycling or equipment wear. 
  • Noise-induced drift (random walk) is caused by random interferences and manifests as unpredictable errors. 

Without regular recalibrations, INS errors pile up, jeopardizing autonomous flights. 

High Power Consumption

More advanced internal navigation units with ring laser gyroscopes are more power-hungry. While FOGs offer higher accuracy, even the most lightweight models consume 1.3 W against an average of 3 mA among MEMS-based systems. 

To compensate for INS drift, many companies also combine IMU readings with computer vision systems to deliver greater accuracy. With sensor fusion done on the edge, power consumption goes up massively, impeding UAV flight time. 

Using AI to Improve Inertial Navigation Unit Data Processing

INS performance can be massively improved using supervised machine learning and reinforcement learning techniques. Sensor fusion algorithms can compensate for accumulated errors and reduce noise-induced disruptions. 

Bavovna developed an AI-powered hybrid navigation kit, featuring a low-SWAP, EMI-shileded onboard unit, and a fine-tuned sensor fusion model, trained for each drone model. The entire system, including our internal navigation unit and AI-powered flight controller, weighs only 1.7lb (800gr), making it compatible with a range of UAV models. The max current consumption is 10A, preventing excessive battery drainage. 

Unlike other systems, Bavovna can maintain an ultra-long range, field-tested range of 155 miles (250km) for fully autonomous flights without any GPS reliance. The accuracy rate can be as high as 99.98%, thanks to on-edge, continuous compensation for error rates. With Bavovna hybrid INS, you can fly regular and FPV missions without worrying about signal loss, targeted interferences, or harsh temperatures. 

Learn more about our AI navigation solution for UAVs. 

Best Long Range Drones

Best Long Range Drones 2025

If you’re looking for a reliable drone for tactical, security, mapping, or surveying missions, you’ll need a model with a long-range. The newest fixed-wing VTOLs boast an impressive range of up to 1500 miles and an extended flight time of up to an entire day.

Long Range Drones: Summary Table

ModelRangeFlight timeKey features
Spirit-X500 km (311 miles)500 km (310 miles), at 150 km (93 miles) an hourZero emission hybrid electrical VTOL Integrated hydrogen fuel cell power system Payload capacity of up to 150 kg (330 lbs.) or 1,470 liters / 52 ft 3 Autonomous piloting mode 
Raybird Up to 2500 km (1553 miles)Up to 28 hoursTactical unmanned aerial system EW threat protectionUp to 5kg in payload capacity Catapult mechanical launcher available  
Tekever AR3 Long-range VTOL100 km (62 miles8 to 16 hours Long-range, high endurance UAV Dual-side looking SAR Integration with a range of sensor optics and payloads All-terrain retreival
Trinity PRO 100 km (62  miles)90 minElectrical, vertical takeoff, fixed-wing UAV Quantum-Skynode autopilot Native compatibility with 5 cameras Portable base station to enable high-precision PPK processing
Fly Dragon FDG24 240km (150 miles)210 minElectrical, vertical takeoff, fixed-wing UAV Reinforced carbon fiber composite airframe IPX4 water ingress rating 25m/s average cruising speed 

Gadfin Spirit-X

Gadfin is one of the top innovators in the long-range fixed-wing drone market. Spirit-X, one of its latest releases, boasts an impressive range of  500 km (311 miles), thanks to a hybrid powertrain, fueled by hydrogen fuel cells. The underbelly box can fit up to 100 kg (220 lb) in cargo or can be used to attach heavy-weight payloads. Foldable low wing, in turn, allows takeoff in landing with limited surface area, making it ideal for urban drone deliveries or rescue missions.  

Key characteristics:

  • 150 km/h (93 mph) cruising speed
  • Fold-out wings and carbon fiber fuselage 
  • Fixed tricycle wheeled landing gear
  • Distributed Electric Propulsion (DEP) redundancy system 

Raybird


Ukrainian startup Skyeton built a compact, but mighty UAS for military, security, and surveillance missions. Assembled in just 25 minutes, Raybird can stay in the air for 28 hours. The digital data link stays strong for up to 120 km (75 miles), although the range can be extended to up to 2500 km (1553 miles). A customizable, hot-swap payload bay can accommodate any camera, SAR, night vision, and laser target designator gear. 

Key characteristics:

  • 18-28 hour flight time
  • 5kg payload capacity 
  • 25 min assembly time 
  • 4500 m max altitude 

Read our full review of Raybird UAS

Tekever AR3 

Portuguese Tekever produces a great lineup of modular, long-range VTOLs.  AR3 is one of its best models because it’s packed to the brim with amazing technologies: a Synthetic Aperture Radar, common GCS with A4, A5, and A3, a recovery parachute, a customizable payload bay, and an optional BVLOS data link to the boot. It’s a marvelous model for a roster of land and sea-based missions.

Key characteristics:

  • Up to 90 km/h (55mph) speed 
  • 4 kg (8.8 lbs) payload capacity 
  • 16-hour max flight time 
  • 25 kg (55lbs) max takeoff weight

Trinity PRO

Trinity PRO eVTOL from Quantum Systems is a ‘nerdy’ sidekick for long-range mapping missions. Boasting a Quantum-Skynode autopilot and Linux-based mission computer, this UAV can be easily upgraded with extra AI capabilities and downstream payload integrations. A native GNSS module and complementary QBase 3D software make Trinity PRO one of the best long-range drones for land surveying and mapping missions

Key characteristics:

  • 90min flight time
  • 700ha area coverage
  • 18m/s wind tolerance
  • 5.75 kg (12.7 lbs) max takeoff weight 
  • IP 55 rating 

Fly Dragon FDG24 

Chinese Fly Dragon produces robust, affordable long-range fixed-wing drones with four rotors for smooth takeoff and landing. It can carry up to 1.6 kg (3.5 lb) in payloads for up to 3.5 hours, making it a great choice for different industrial use cases — building inspection, crop monitoring, site surveying, or emergency mission patrols. A sturdy airframe made of carbon fiber composites and an IPX4 ingress rating guarantee the gear’s long service life. 

Key characteristics:

  • 25m/s cruising speed 
  • 240 km max range 
  • 210-minute flight time 
  • 10 kg/22lbs max take-off mass
  • Level 5 wind resistance 

Discover even more long-range UAVs from our directory

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