Questions tagged [unmanned-aerial-vehicle]

An unmanned aerial vehicle (UAV), commonly known as a drone, is an aircraft without a human pilot on board. Its flight is controlled either autonomously by computers in the vehicle or under the remote control of a pilot on the ground or in another vehicle.

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UAV IMU dataset/Simulator [on hold]

I am trying to simulate navigation of a UAV using inertial navigation. i don't have access to a UAV itself so, i have to simulate it. I cannot find a flight-log or data-set of an IMU of an UAV or ...
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What's the minimum number of sensors for a hobby GPS waypoint-following UAV?

I would like to develop my own guidance, navigation and control (GN&C) flight software on a Raspberry Pi, for a small hobby fixed-wing UAV. From a physical standpoint, what is the minimum set of ...
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Cross a barrier with a drone [closed]

How fast does a multi-copter drone need to fly in order to freefall on the other side of a highway if: Drone weight - 15kg, 20kg Highway width - 70 ft altitude above ground - 200 ft, 300 ft, ...
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Definition of Critical Part in type certification process

first time here :) I'm part of the team at Flytrex (flytrex.com) and we're working with the Aircraft Certification Office to certify one of the first UAS systems (drones) under new initiative to ...
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where can i get a aviation map of korea with the moes, and highways and vectors

ive been searching for a aviation map of South Korea and cant find anyone that sells it. does anyone know where I can find one for flight planning
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At what altitude does a wing become useless? [duplicate]

At what speed or altitude does an aircraft become more efficient as a rocket then a plane using thrust vectoring instead of the wings to steer? At what altitude did the flight control surfaces of the ...
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As a drone hobbyist, is flying below the listed FAA UAS ceiling a violation of controlled airspace?

FAA (emphasis mine): In Class B, Class C, or Class D airspace [controlled airspace] or within the lateral boundaries of the surface area of Class E airspace designated for an airport, the ...
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Are there any operational, combat capable multicopter drones (as of 2019)?

Are there any small operational military drones with any form of weapons system on board, as of 2019? I'm basically referring to a more powerful, more sophisticated and refined version of something ...
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Would this be a dangerous impeller to use for a drone?

I am considering using a 3D printer to make unconventional impellers for a custom-made drone that I am planning to build. I am concerned that these plastic impellers may explode if their motors' RPMs ...
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How can air launched UAV's be decelerated?

I am working on disaster relief drones for a college project. I was thinking about having multiple set of drones launched from an aerial vehicle over the disaster prone area. That's when I came across ...
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1answer
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What are all the US airports where E4 “extensions” change to E2 and become part of a larger E2 “surface area” when the tower closes for the night?

Of all the US airports with part-time control towers and with E4 "extensions", in which cases are the airspace definitions written so that the E4 "extensions" change to E2 and become part of a larger ...
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What's the smallest 3-blade propeller for this motor? [closed]

I've got a 15470 brushless 35kw motor from China How do I find the smallest 3-blade propeller I can use for this motor? Here are it's specs, Max Power: 35KW Max Amp: 400A Max RPM: 8500 Max Volt: 120v ...
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Can the Class-E-to-surface airspace near Eagle County Regional airport (KEGE) and Marshall AAF (KFRI) be ignored when the tower is open?

Can the Class-E-to-surface designation indicated by the dashed magenta lines outside the dashed blue circle at Eagle County Regional airport (KEGE) be ignored when the tower is open? Likewise at ...
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1answer
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Why does the European MALE RPAS UAV use twin engines?

I don't know why the European MALE RPS UAV designers chose to use twin engines? I know two engines are expensive but add safety... Does choice is to obtain mass flow @ Medium altitude(low air ...
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What operational aspects of Alphabet's Wing drone delivery service will be the same as that of an airline?

The NPR News article and podcast FAA Certifies Google's Wing Drone Delivery Company To Operate As An Airline begins with: The Federal Aviation Administration has certified Alphabet's Wing Aviation ...
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1answer
143 views

Why do drones near airports necessitate cancelling flights?

From Wikipedia's page on the Gatwick drone incident: Between 19 and 21 December 2018, hundreds of flights were cancelled at Gatwick Airport near London, England, following reports of drone ...
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What does the “remote control” for a QF-4 look like?

As I understand it a QF-4 is a Phantom which is converted to a remotely controlled plane for use in weapons testing. (Apparently in non-destructive runs, a pilot is still on board for safety, ...
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Quadcopter: would putting 3 blades on the same level and the other blade below the first three work?

Most quadcopters have their propeller blades all on the same level, or in some cases, a pair of blades placed a little above the other pair. However, I was wondering if three propellers of a ...
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What is the most critical data to measure for a predictive maintenance model for a drone?

I'm looking at making a predictive maintenance model for a drone (quadcopter mainly but can include others) I'm wondering what is the most common causes of failure due to "overflying". (not including ...
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Is it possible to get permission to fly a quadcopter around the St. Louis Arch for non-professional means

Is it permissible to fly a small quadcopter (<1 kg) around St Louis Arch for non-commercial means? If so what permit/permission is required?
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What landing aid system are used for fixed wing UAV?

For commercial aircraft, precise landing aid systems (ILS, GBAS) are required for autolanding, but these navigation systems are too expensive to be used for UAV operations. However, a lot of UAV OEMs ...
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250 views

How much is a QF-16 worth?

Wikipedia lists the prices for F-16 as: F-16A/B: US\$14.6 million (1998)[4] F-16C/D: US\$18.8 million (1998)[4] However, this is clearly outdated, and I suspect that the aircraft in the worst ...
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UAV development platform [closed]

What is UAV development platform? For example, STM UAV, Intel, Parrot and so on. I searched on Google, but couldn't get its exact meaning. Thank you very much.
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Could Falcon 9 fairing become glidable / flyable?

Reading and thinking about this and this questions on space exploration stackexchange, I was wondering if the fairing could shape itself, so that it becomes one stable and steerable gliding element ...
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1answer
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Can ailerons be used to control yaw and pitch [closed]

Is it possible for an aileron to be used to control the roll, pitch and yaw of a vtol drone
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How could so many drones establish contact with ATC?

India has brought out best set of drone regulations on the basis of No Permission No Take-off (NPNT). But how can the ATC establish contact with so many drones that will be unpredictably asking for ...
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What disadvantages does flying a drone close under a ceiling have?

If I want a drone (quadcopter) to be flying always under a surface and close to this surface (i.e: under a table 5cm away from the surface), which are the disadvantages this would have in the lift ...
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What are the failure mode(s) for flying cars in case of power loss?

There seem to be lots of plans (and even some working prototypes) for various autonomous flying cars and flying taxis. Most of these seem to be based on vertical take-off using some variety of an ...
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2answers
372 views

Are there any photos or videos of the drones at Gatwick? [closed]

The Gatwick Airport drone incident from 19-21 December 2018 involved "67 reports of drone sightings close to the runway" (Wikipedia). However, police stated there were no photos or videos of the ...
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4answers
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How does scaling of UAV size impact range?

Lets say you have two autonomous small aircraft, one with a wingspan of 200 cm and one with 400 cm. Both have the same general design. They are both optimized for travel distance on one full tank (gas ...
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1answer
108 views

What would be a safe minimum vertical separation distance between passenger-carrying multicopter aircraft?

There is increasing talk about employing passenger-carrying multicopters ("taxi drones") to extend urban mobility into the third dimension. These aircraft will have MTOMs in the range of several ...
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1answer
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Could a quadcopter fly if its propellers were encased in cylindrical tubes?

Picture a standard quadcopter, with regular old propeller guards, which are generally just circles around the propellers. Now, take the propeller guards and stretch them so that they're cylinders ...
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Why hasn't anyone tried making two propellers facing upwards and the other two facing downwards? [closed]

Within a quadcopter, I know usually it's all the propellers facing upwards or all of them facing downwards. Why hasn't anyone tried making two propellers facing upwards and the other two facing ...
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3answers
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Can quadcopters still fly with propellers at an angle?

Can quadcopters still fly with propellers at an angle? By this I mean like the whole motor mounts will be situated along a certain slope (so as to be neither horizontal nor vertical). UPDATE I meant ...
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1answer
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quadcopters — should the propellers/motors all be at the same height

In quadcopters (or in any other drones), must the propellers/motors all be at the same height, or can there be symmetric height differences (like for eg, two of the motors at the "back" are elevated ...
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Why do drones look different from common airplanes? [duplicate]

In this video is shown Top 5 Military Drone. As we may see, the shape looks different than usual airplanes. My concern is especially with the tail. Normally we know that the tail is vertical. But from ...
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What were DJI drones spying on? What data did they capture? [closed]

In late 2017, it was claimed that DJI (a very popular Chinese drone company) was working with the Chinese government to spy on the United States via their drones, or their drone controllers, which are ...
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1answer
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What are some of the fastest UAVs? How do the pilots ensure that their controls are being transmitted to actions?

I would clarify that the drones I refer to are UAVs that were piloted using a control station. I know many military projects include such capabilities but I want to know how pilots work on such ...
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202 views

Must quadcopters have the same propeller sizes?

I was flying quads today and it just suddenly popped up into my mind — do the propellers all have to be the same size in quadcopters? Mine are, but What if two propellers were larger and the other two ...
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What is the feasibility of solar powered drones?

What is the feasibility of solar powered drones? From my understanding, solar panels are becoming more and more efficient, in terms of weight vs energy captured, and in terms of surface area vs energy ...
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Can “a drone” damage the wing of “an aeroplane” to the extent it actually threatens its ability to fly?

I stumbled across this video by the University of Dayton, showcasing the amount of damage a certain type of drone can do to a wing, and they wrote a whole article about it. While most of said article ...
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1answer
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Where is V15 and how do I find it?

My question: Where is V15 and how do I find it? The question referred to in the practice test: Refer to the figure 21, area 2 below: What is the floor of controlled airspace along V15? The ...
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2answers
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What kind of cameras are onboard high altitude UAVs that aid in its control?

I ask this question in the context of people flying their drones much higher than the usual hobby planes. Satellite based GPS navigated Autopilots using photogrammetry and/ or military drones. What ...
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Is there any fixed-wing UAV common research model available?

Is there any source of structural specifications data available for a particular fixed-wing UAV, that can be used for comparison with a resulting structure, obtained by a structural optimization ...
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How does the number of blades affect the static thrust of a propeller? [duplicate]

Since I couldn‘t find an answer to this question I thought I‘d ask you guys! By which factor does the thrust of a propeller increase if I double the number of blades, the motor being powerful enough ...
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1answer
277 views

How do I properly report sighting a drone or hobby UAV to ATC?

How would one go about reporting a drone (hobby UAV) sighted in the airspace of an airport on frequency, specifically to Tower? For example: I am doing patterns around the airport when to the ...
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2answers
297 views

How to fly a drone in Class D in Italy?

I am traveling for a wedding which will take place in Monza Park, Italy. According to Italian Airspace Pro, the location I would like to fly, the southern half of the park, is technically in Class D ...
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2answers
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Are there any situations in which drones may legaly fly higher than 400ft?

FAA FAR 107 states, "The maximum allowable altitude is 400 feet above the ground, and higher if your drone remains within 400 feet of a structure." Are there any exceptions to this rule that ...
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Are there any aviation vehicles for Internet service?

Facebook announced on Wednesday (2018.06.27) that it is ending its Aquila drone program after four years of development. Aquila was a high-altitude platform station (HAPS) system designed to deliver ...
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1answer
313 views

Calculating the maximum altitude of a drone [duplicate]

Is there an equation to find the maximum altitude that a drone or quadcopter can fly to ?