DJI Mavic Pro Quadcopter Drone 4K Camera, GPS Positioning, 40mph (Refurbished)
The DJI Mavic Pro is a small yet powerful drone that turns the sky into your creative canvas easily and without worry, helping you make every moment an aerial moment. Its compact size hides a high degree of complexity that makes it one of DJI’s most sophisticated flying cameras ever. 24 high-performance computing cores, an all-new transmission system with a 4.3mi (7km) *range, 5 vision sensors, and a 4K camera stabilized by a 3-axis mechanical gimbal, are at your command with just a push of your thumb or a tap of your finger.
*Unobstructed, free of interference, when FCC compliant.
The Mavic uses DJI’s newly developed OcuSync transmission system. Part of the Lightbridge family, OcuSync performs far better than Wi-Fi transmission at all transmission speeds. OcuSync also uses more effective digital compression and channel transmission technologies, allowing it to transmit HD video reliably even in environments with strong radio interference. Compared to traditional analog transmission, OcuSync can transmit video at 720p and 1080p – equivalent to a 4-10 times better quality, without a color cast, static interference, flickering or other problems associated with analog transmission. Even when using the same amount of radio transmission power, OcuSync transmits further than analog at 4.1mi (7km)*.
OcuSync goes even further than optimizing the communication mechanism and parameters of aerial imaging. There are several video transmission systems on the market claiming to offer video transmission with zero latency. However, it should be noted that the physical layer of those transmission systems is too simple to adapt to changes in the environment. When affected by signal interference, the image quality of the video being transmitted will fall sharply. This means these systems are not suitable for far field transmissions and transmissions in interference-heavy environments. Also, because these video transmission systems are not integrated into the whole system, latency will immediately start to rise up from 0 when working with devices including cameras and displays. OcuSync is able to strike a perfect balance between latency and receptivity, reducing latency to 5ms for remote controller transmission commands, 10ms for video data and 130ms for videos. More than low enough to ensure that Mavic is able to fly reliably despite interference. OcuSync’s integration with video processing, coding, and signal transmission systems also make it more cost effective.
Before taking off, OcuSync will automatically scan the environment and choose the frequency band with the lowest interference, ensuring more stable video transmission. During a flight, it sends key flight parameters back for viewing in the DJI GO app and supports a maximum download speed of 40Mb/s for photos and videos.
There are many Wi-Fi based transmission systems available on market. However, the experience of using OcuSync is completely different. As Wi-Fi was primarily designed to connect electronic devices locally, it works best when connecting to nearby devices. As it was designed for short range, Wi-Fi systems use low cost transmitters that suffer from weak data links. This means that a Wi-Fi cannot detect weak signals or signals with interference. OcuSync however, uses many cutting-edge communication industry technologies to outperform Wi-Fi in terms of sensitivity, anti-interference, and anti-fading, as well as when flying at high speed. It also supports simultaneous connection to multiple devices.
In use, this is the difference between smooth or interrupted transmission, short or long flight range, and short or long recovery times after interference or GPS signal loss. Additionally, since Wi-Fi uses a traditional protocol stack, it takes longer - from several seconds to tens of seconds – to get connected and to re-connect after signal loss But OcuSync uses Cross-Layer Protocol Design, it can establish or re-establish links within one second.
As well as point-to-point video transmission, OcuSync also supports wireless connections to multiple devices. For example, you can connect the DJI Goggles, remote controller, and Mavic wirelessly to OcuSync all at the same time. You can also add an additional remote so that you can control the Mavic with two remotes or share First Person View (FPV) videos.
* Unobstructed, free of interference, when FCC compliant.
NO BUMPS AND SCRAPES
Ultrasonic waves and Time of Flight (ToF) sensors are often used to measure distance from an obstacle, but both methods calculate distance based on signal reflection and are therefore reliant on the shape of the obstacle. This means distances from common obstacles such as rocks and branches cannot be sensed. FlightAutonomy gives the Mavic long range, high precision obstacle sensing, enabling it to scan its environment in 3D before taking off. FlightAutonomy ensures the Mavic precisely locates obstacles around it.
Detecting obstacles requires getting information about the obstacle to the Mavic. Ultrasonic and ToF sensors measure distance by detecting the first reflected wave. In other words, they can only measure the distance from a single point, instead of getting a 3D depth image of a particular obstacle. Another method of creating a depth image is structured light projection. For this, a structured light sensor projects infrared in a specific shape onto the obstacle in front of it. The infrared then reflects back and the sensor then calculates the strength of the reflected signal so that it can create a 3D depth image of the obstacle. However, due to the limited strength of infrared and interference from visible light, the maximum sensing distance for a structured light sensor is only 3 to 5 meters. It is also ineffective in bright light significantly reducing its reliability and effectiveness on a sunny day.
FlightAutonomy is made up of 7 components including 5 cameras (forward and downward dual vision sensors and the main camera), dual-band satellite positioning (GPS and GLONASS), 2 ultrasonic rangefinders, redundant sensors, and a group of 24 powerful, specialized computing cores. Cameras on the left and right side in the front of the Mavic are fixed in place using an aluminum bracket to ensure the optimum alignment of the vision sensor lenses.
As the Mavic flies, dual forward and downward vision sensors measure the distance between itself and obstacles by taking photos from all four cameras and using the information to create a 3D map that tells it exactly where obstacles are. The dual forward and downward vision sensors require visible light to function, and in bright light can see as far as 49ft (15m) out in front.
This obstacle avoidance system is activated in every Intelligent Flight Mode including all ActiveTrack modes, TapFly and Terrain Follow. It is also available during automatic Return to Home, so that the Mavic can easily make its way back without bumping into anything in its path.
Situations without satellite positioning can be divided into two main types. First, satellite connectivity may be unavailable when flying indoors. Second, satellite connectivity is cut off during an outdoor flight, such as by flying under a balcony or flying from indoors to outdoors. The loss of satellite positioning makes these scenarios dangerous for new pilots, or those who want to fly long distances*.
If the drone wants to position itself using satellites, the flight controller needs the current location and flight speed of the aircraft. However, if the drone needs to position accurately without GPS, flight status and location will need to be collected another way. Vision positioning equipped drones generally use what is known as an Optical Flow visual positioning system, consisting of dual ultrasonic sensors and a single camera. The ultrasonic sensors provide altitude information by measuring the distance between the aircraft and the landing point, while the single camera is used to calculate positioning information by capturing images below the aircraft. As ultrasonic sensors are the only measure of height, the higher the aircraft flies the less precise the data from reflected sound waves become. Accurate height positioning is therefore limited to less than 3 meters. The single camera is unable to improve height positioning accuracy and limits areas that the drone can hover stably to those that have a clear and definable texture.
The Mavic overcomes these problems through the use of dual forward vision sensors. This setup allows the Mavic to see obstacles in 3-dimensions up to 15 meters in front, increasing positioning accuracy to 2-3 times that of an Optical Flow system. It also allows the speed of the aircraft to be calculated, enabling precise hovering at up to 10 meters without satellite positioning. Dual forward vision sensors allow it to calculate its current location and speed of flight by observing the scene in front, further increasing positioning accuracy. Thanks to this precise hovering technology, the Mavic is able to automatically land almost exactly where you took off. Every time you take off, the two downward facing vision sensors record a burst of video of the ground below and pair it with satellite coordinates. When you tell the Mavic to fly home, it will return to that coordinate, match the video, and land back at your feet.
*Line of sight flight is required in some countries.
STAY FLYING LONGER
When designing the Mavic, we wanted to reduce its size without sacrificing flight time. Since the Mavic has a brand new 4.1mi (7km) (Unobstructed, free of interference, when FCC compliant)Full High Definition (FHD) video transmission system, we knew customers would want increased flight time and speed to enjoy their flying more. This is why the Mavic can fly for up to 27* minutes and reach speeds of 40mph (64kph). Because the Mavic is much smaller than the Phantom 4, it requires an even more efficient propulsion system. The efficiency of the Mavic’s propulsion system allows it to fly more than twice the 10 minutes that other folding or pocket-sized drones on the market are capable of. Its propulsion system is also more stable than smaller drones that do not have the power to fly in strong winds. The flight time of a drone is heavily dependent on its propulsion system and its overall power consumption. Since Mavic is smaller, the expectation is that it is less stable than a Phantom 4 when flying against the wind, but the Mavic’s airframe and propulsion system have been optimized to allow it to rival the Phantom 4 in the following ways:
1. An aerodynamic design in the front and rear of the Mavic and its polished surfaces reduce air resistance as it flies forwards.
2. Mavic has 2 pairs of 8.3inch foldable propellers, each covering nearly half its length, compared to most foldable drones on the market whose propellers are only 1/4 their length. This is possible through elegant engineering that allows rear arms to fold below forearms, saving overall space while allowing room for larger props.
3. The aerodynamic configuration of the Mavic has been redesigned according to its flying attitude and angle when moving forward. We also optimized the aerodynamic efficiency of the propellers so that the Mavic can fly for longer.
4. High-density lithium batteries reduce space required for batteries, yet provide the same amount of power. The battery compartment is deeply integrated inside the Mavic and guarantees structural strength.
5. An improved propulsion system ensures the Mavic ascends and accelerates faster. Combined with a fast responding, highly robustness flight controller, it is able to expertly handle strong winds while flying.
*Battery duration is recorded in an ideal flight situation, subject to real flying environments and conditions.
4K ULTRA HD VIDEO
Electronic Image Stabilization (EIS) is a shake reduction technology based on image cropping. It is particularly popular among compact and small drones since they can be made more simply by replacing a 3-axis gimbal stabilized camera with a fixed camera and EIS. EIS works by cropping edges from a 4K image, and can theoretically create a smooth full HD 1080p video from an original 4K video. However, EIS is unable to completely eliminate shaking and introduces ripples in both photos and videos. In drones, EIS has three main problems:
1. EIS systems cannot shoot 4K or high frame rate video because cropping is necessary to reduce shake, and the amount of cropping will vary depending on the amount of movement. As 4K is currently the highest definition available for most cameras, 4K (or even 2.7K video) cannot be shot while using EIS. Additionally, as it takes time to process the cropping, recording video at high framerates is not possible, resulting in only 1080p video at 30fps.
2. Shooting perspectives cannot be controlled precisely. Without a gimbal, drones are forced to use a fisheye lens to allow shooting angle changes, but changing the angle only uses part of the camera view, negatively affecting the shooting experience.
3. Black edges may be introduced in the video in flight during a severe maneuver. This occurs because EIS technology clips beyond the edge of the video in an effort to keep the image stable.
To provide true 4K aerial video and a smooth live feed, the Mavic Pro is equipped with the smallest high-precision 3-axis gimbal that DJI has ever made. With brushless motors on all three axes, the gimbal can control the camera with precision, adjusting it to eliminate shake caused by movement from the Mavic. This 4K camera uses core technologies found in all DJI cameras. It is equipped with a 1/2.3 inch CMOS image sensor, commonly found in professional sports cameras, and an aerial imaging optimized integrated lens with an equivalent focal length of 28mm. It shoots smooth 4K video at 30fps, 1080P video at 96fps and 12-megapixel photos.
PHOTOS WITH ALTITUDE
Every photo you take with the Mavic can be as big as 12 megapixels. Combined with an image sensor that has been expertly tuned for aerial images, all you need to do is find the perfect subject. You can even flip the camera 90° for portrait oriented shots, just like you do with your phone. If you are as concerned about editing as you are about composition, you can capture every photo in Adobe DNG RAW to give you all the editing power you need to turn any photo into a work of art.
SHOOT LIKE A PRO. AUTOMATICALLY.
ActiveTrack uses deep learning, computer vision and advanced autonomous flight strategies to make complex, creative shots as simple as possible with just a tap. No GPS bracelets, no transmitters. The Mavic has been trained to detect and recognize a number of common subjects including people, bike riders, vehicles and even animals. Once you have marked your subject, you can create a huge variety of shots depending on the mode you are in. Choose from Trace, Profile or Spotlight, to give every scene you shoot a professional touch. When the Mavic is tracking, you can even select exactly where you want them in the frame, for more control over your final shot.
Follow behind or in front of your subject, or circle it as it moves.
Fly alongside your subject.
Keep the camera trained on your subject while you fly almost anywhere.
WAVE FOR YOUR DRONIE
In Gesture Mode, the Mavic’s Vision System can recognize your gestures. Raise your arms or wave to it and the Mavic will follow you or take selfies for you. Put away your phone and controllers, all you need is a gesture.
FINELY TUNED CONTROL
Tripod Mode drops the Mavic’s maximum speed to just 2.2mph (3.6kph), and the control stick sensitivity of the remote controller is dulled to give you the precision you need for accurate framing. It is also great for flying indoors in small spaces where the Mavic’s normal speed may make it more challenging to fly.
FLY BY PHONE
Sometimes a phone is all you need to fly. Not only does the Mavic support flying on your phone with Virtual Joysticks, but you also have full access to all of its Intelligent Flight Modes — TapFly, Trace, Spotlight, and Profile. Using just your phone, you can capture photos and video so incredible, that no one will believe you did it just by tapping a screen!
With intelligent vision technology, Mavic is extremely smart. Tap a point on the screen and the Mavic will fly towards that point directly; if you tap another point, it will smoothly turn to the new destination. In TapFly, Mavic’s onboard obstacle sensing systems are constantly scanning in front of it, keeping it away from any obstructions, freeing you up to admire the view.
AT YOUR COMMAND
The slightest movement of your fingers on the Mavic’s control sticks is translated almost immediately into movement in the air, so you always feel in complete control. Its powerful motors and expertly optimized propellers, provide more power than you would expect for its size, making it able to fly smoothly in up to 24mph (38.5kph) winds.
Sport Mode was designed for fun, giving the Mavic a top speed of 40mph (65kph), all the while ramping up agility and responsiveness, to give you a taste of drone racing. You can also use it to film something fast, or zip out to catch a shot before the moment passes. Even in Sport Mode, the Mavic will stop almost instantly if you let go of the controls, so no matter how fast you go, you can stop at any time.
SEE THE WORLD LIKE A BIRD
DJI Goggles makes flying totally immersive, putting two lifelike 1920 × 1080p LTPS displays with a wide 85° angle of view in front of your eyes for a true bird’s eye look at the world around you. Built-in OcuSync delivers a 1080p video stream and because it connects directly to the Mavic and not through a cable or a Wi-Fi link to the controller, a super low latency.
SHOOT. EDIT. SHARE.
Automatic video editing templates, simple video editing functions, and easy photo and video management, bring together everything you need to make epic videos right on your phone. All you need to do is choose the shots you think will amaze. After you’ve created your masterpiece, share it straight to Facebook, YouTube, Twitter, Instagram and more, as well as SkyPixel, DJI’s own community dedicated to aerial imaging. If you start shooting a video that just cannot wait to be shared, go ahead and stream it live to Facebook or YouTube so no one misses out.
TWO SETS OF SENSORS. TWICE AS RELIABLE
Flight Control systems are critical to stable flight and they need data from different sensors on the Mavic to function. The Inertial Measurement Unit (IMU) and the compass are the most important ones, yet they are also the most vulnerable to interference. The IMU acquires the angle, speed, and acceleration of the Mavic, so if it functions abnormally, it could negatively affect flight. The compass is used to know where the drone is heading, ensuring it flies in the right direction, and allowing it to return to home automatically. Without the compass, the Mavic would lose its ability to navigate. This is why the Mavic has dual IMUs and dual compasses.
Stability is key to safe flight:
1. Stability of the propulsion system: The Mavic will only fly when its motors and propellers are normal and intact, and the battery is sufficiently charged.
2. Stability of flight attitude: Flight attitude is controlled by the Flight Controller. Any errors in attitude could have serious consequences including crashes.
3. Stability of sensors: Flight attitude is calculated from the data of an array of sensors. Any errors from the sensors could have serious consequences including crashes.
Through DJI’s years of experience in drone development, and from extensive reliability tests DJI has found that propulsion systems and batteries are highly reliable while sensors, especially the IMU and the compass, are more slightly more susceptible to errors. This is why the Mavic has made these sensors redundant with two sets of sensors working simultaneously. Whenever the system detects an inconsistency in one, it switches to the other, keeping your flight steady and reliable.
When you are flying over changing terrain, like following bikers riding uphill, the Mavic’s Terrain Follow function uses height information gathered by the onboard ultrasonic system, and its downward facing cameras to keep you flying at the same height above the ground even as the ground moves. Just set the height from the ground you want — from 9ft (0.3m) to 33ft (10m) — and focus on getting the right shot.
SAFER, SMARTER BATTERIES
Electric vehicles use Battery Management Systems (BMS) to ensure battery performance, and LiPo batteries used in drones need BMS to function at their best. Most drones on the market today do not use intelligent batteries. Instead, they calculate battery level and even battery status, through monitoring current and voltage. The problem is that the remaining power in a LiPo battery is also reliant on battery temperature — the number of times the battery has been charged and discharged — so it cannot be accurately gauged with just current and voltage data.
DJI first began using Intelligent Flight Batteries in the Phantom 2. BMS was applied to LiPo batteries to accurately calculate battery level, working status and also to send battery status information to the Flight Controller. The DJI Intelligent Flight Battery in the Mavic adopts the latest technologies to ensure that the flight control system is able to obtain accurate battery level. This allows it to calculate remaining flight times more accurately. It also gives pilots a full understanding of the overall battery status, including real-time battery cell status, circle number, temperature and more, and all in the DJI GO app. As well as monitoring the battery status during flight, the BMS also has overcharge and over discharge protection, reducing the likelihood of battery damage. When not in use for extended periods of time, DJI Intelligent Flight Battery automatically discharges to 50% charge, keeping it at an optimum charge level for extended battery life. When flying in cold temperatures, the BMS will activate low-temperature protection and will control power output according to the temperature. This ensures the battery can provide adequate propulsion without damage from the cold.
A GLANCE IS ALL YOU NEED
DJI GO is your Mavic’s control center. When your phone or device is connected to the Mavic, it shows you everything the camera sees in near real-time, so you can set up and frame every shot as if you are actually there. It also gives you full manual camera controls for photos and videos, including ISO, shutter and file format. It even lets you fine-tune your Mavic so that it flies exactly how you want it to. Features Please note: The Mavic Pro drone ships with 3 pairs of propellers.
• Folded: H83mm x W83mm x L198mm
• Diagonal Size (Propellers Excluded): 335 mm
• Weight (Battery & Propellers Included):
- 1.62 lbs (734 g) (exclude gimbal cover)
- 1.64 lbs (743 g) (include gimbal cover)
• Max Ascent Speed: 16.4 ft/s (5 m/s) in Sport mode
• Max Descent Speed: 9.8 ft/s (3 m/s)
• Max Speed: 40 mph (65 kph) in Sport mode without wind
• Max Service Ceiling Above Sea Level: 16404 feet (5000 m)
• Max Flight Time: 27 minutes (0 wind at a consistent 15.5 mph (25 kph))
• Max Hovering Time: 24 minutes (0 wind)
• Overall Flight Time: 21 minutes ( In normal flight, 15% remaining battery level )
• Max Flight Distance: 8 mi (13 km, 0 wind)
• Operating Temperature Range: 32° to 104° F (0° to 40° C)
• Satellite Positioning Systems: GPS / GLONASS
• Hover Accuracy Range
+/- 0.1 m (when Vision Positioning is active) or +/-0.5 m
+/- 0.3 m (when Vision Positioning is active) or +/-1.5 m
• Operating Frequency: 2.4 GHz to 2.483 GHz
• Max Transmission Distance:
- FCC Compliant: 4.3 mi (7 km);
- CE Compliant: 2.5 mi (4 km) (Unobstructed, free of interference)
• Operating Temperature Range: 32° to 104° F ( 0° to 40° C )
• Battery: 2970mAh
• Transmitter Power (EIRP):
- FCC:=26 dBm
- CE:=20 dBm
• Operating Current/Voltage: 950mA @ 3.7V
• Supported Mobile Device Size:
- Thickness Supported:6.5-8.5mm
- Max length: 160mm
• Supported USB port types: Lightning, Micro USB(Type-B),USB(Type-C)™
• Controllable Range: Pitch: -90° to +30°
• Roll: 0° or 90° (Horizontally and vertically)
• Stabilization: 3-axis (pitch, roll, yaw)
• Vision System:
- Forward Vision System
- Downward Vision System
• Obstacle Sensory Range: Precision measurement range: 2 ft (0.7 m) to 49 ft (15 m) Detectable range: 49 ft (15 m) to 98 ft (30 m)
• Operating Environment: Surface with clear pattern and adequate lighting (lux > 15)
• Velocity Range: =22.4 mph (36 kph) at 6.6 ft (2 m) above ground
• Altitude Range: 1 - 43 feet (0.3 - 13 m)
• Operating Range: 1 - 43 feet (0.3 - 13 m)
APP / LIVE VIEW
• Mobile App: DJI GO
• Live View Quality
- [email protected][email protected](Remote Controller)
- [email protected](Wi-Fi)
- [email protected][email protected](DJI Goggles)
• Latency 160-170ms (depending on conditions and mobile device)
• Required Operating Systems:
- iOS 8.0 or later
- Android 4.1.2 or later
• Recommended Devices:
- ios: iPhone 5s, iPhone 6, iPhone 6 Plus, iPhone 6s, iPhone 6s Plus, iPhone 7, iPhone 7 Plus, iPod touch 6, iPad Pro, iPad Air, iPad Air Wi-Fi + Cellular, iPad mini 2, iPad mini 2 Wi-Fi + Cellular, iPad Air 2, iPad Air 2 Wi-Fi + Cellular, iPad mini 3, iPad mini 3 Wi-Fi + Cellular, iPad mini 4, and iPad mini 4 Wi-Fi + Cellular. This app is optimized for iPhone 5s, iPhone 6, iPhone 6 Plus, iPhone 6s, iPhone 6s Plus, iPhone 7 and iPhone 7 Plus.
- Android: Samsung tabs 705c, Samsung S6, Samsung S5, Samsung NOTE4, Samsung NOTE3, Google Nexus 9, Google Nexus 7 II, Ascend Mate7, Huawei P8 Max, Huawei Mate 8, Nubia Z7 mini, SONY Xperia Z3, MI 3, MI PAD, Smartisan T1.
*Support for additional Android devices available as testing and development continues.
• Sensor: 1/2.3” (CMOS), Effective pixels:12.35 M (Total pixels:12.71M)
• Lens: FOV 78.8° 28 mm (35 mm format equivalent) f/2.2
• Distortion: < 1.5% Focus from 0.5 m to 8
• ISO Range
- 100-3200 (video)
- 100-1600 (photo)
• Electronic Shutter Speed: 8s -1/8000s
• Image Size: 4000×3000
• Still Photography Modes:
- Single shot
- Burst shooting: 3/5/7 frames
- Auto Exposure Bracketing (AEB): 3/5 bracketed frames at 0.7 EV Bias
• Video Recording Modes:
- C4K: 4096×2160 24p
- 4K: 3840×2160 24/25/30p
- 2.7K: 2720x1530 24/25/30p
- FHD: 1920×1080 24/25/30/48/50/60/96p
- HD: 1280×720 24/25/30/48/50/60/120p
• Max Video Bitrate: 60 Mbps
• Supported File Systems: FAT32 ( = 32 GB ); exFAT ( > 32 GB )
• Photo: JPEG, DNG
• Video: MP4, MOV (MPEG-4 AVC/H.264)
• Supported SD Cards:
- Micro SD™
- Max capacity: 64 GB. Class 10 or UHS-1 rating required
• Operating Temperature Range: 32° to 104° F ( 0° to 40° C )
• Operating Frequency: 2.4G/5G
• Max Transmission Distance: 80m(Distance),50m(Height) (Unobstructed, free of interference)
• Max Speed: 14 km/h (9 mph)
• Max Ascent Speed: 6.6 ft/s(2 m/s)
• Max Descent Speed: 3.3 ft/s(1 m/s)
• Voltage: 13.05 V
• Rated Power: 50 W
INTELLIGENT FLIGHT BATTERY
• Capacity: 3830 mAh
• Voltage: 11.4 V
• Battery Type: LiPo 3S
• Energy: 43.6 Wh
• Net Weight: Approx.0.5 lbs(240 g)
• Charging Temperature Range: 41° to 104° F ( 5° to 40° C )
|Max Flight Time||25 minutes|
|Max Flight Height||500 meters|
|Weight (with payload)||743 grams|
|Weight (without payload)||734 grams|
|Max Flight Rate||17 m/s|
|Still Image Resolution||4000x3000|
Please note your statutory rights are not affected.
For further information regarding Scan's warranty procedure please see our terms and conditions
- 3 months
- DOA Period:
- 14 days
- 0207 660 3037
Call DJI directly to register your serial number and extend your warrenty on 0207 660 3037
Date Issued: 24th Jul 2017
An unmanned aerial vehicles (UAV), better known as a drone, is a type of aircraft that is controlled remotely and is therefore flown without a human in the cockpit. Drones come in all shapes and sizes, from military UAVs primed for reconnaissance and missile deployment through to civilian drones for applications as varied as aerial photography, product deliveries, and keeping tabs on agriculture and livestock.