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5
votes
1answer
37 views

What obstacles are there in making ultra long range model aircraft?

As far as I am aware, there have not been any model aircraft that have successfully circumnavigated the Earth without stopping. Few trans-Atlantic attempts have succeeded (see: The Spirit of Butts' ...
4
votes
0answers
14 views

How does “L1 distance” path-following for fixed-wings work?

I was told that the "L1 distance" method is one of the simpler methods for guiding a fixed-wing aircraft along a path. It sounds like a path-following method for fixed-wing aircraft that ...
2
votes
1answer
21 views

How do aerodynamics for small model aircraft differ from that of larger aircraft?

I am reading an aerodynamics textbook (Introduction to Aerodynamics by Anderson). I am still in the chapters that deal with subsonic aerodynamics, which seems to have a focus on life-sized manned ...
4
votes
0answers
10 views

Quadcopter Stability Modelling

We know software like XFLR5 to model fixed-wing aircraft to determine aircraft dynamics and stability. Is there any software which we can model our quadcopter geometry in so we can know it's CoG, ...
2
votes
0answers
20 views

Books for learning how to build fixed-wing RC planes?

What are some books or reading resources I can use to learn how to build my own fixed-wing RC aircraft? Many years ago, I used to work on a fixed-wing RC aircraft, but only as a programmer for some of ...
2
votes
2answers
37 views

How can I learn to fly RC planes using a simulator?

I intend to learn how to fly RC fixed-wing planes (I have previously worked on semi-autonomous aircraft, but had never learned how to fly RC planes). However, I currently live in a small place where ...
5
votes
1answer
17 views

Can I replace the switches on my taranis qx7s with switches from a X9D?

One of the switches on my taranis qx7s recently broke, and when looking at replacement switches I found two alternatives; X9D and X10/X12. The X9D switches are much cheaper than the other, so my ...
3
votes
0answers
67 views

My DIY Project - My motors and voltage regulator for water pump does not work at the same time

I am working on a project to make a quadrocopter that can spray liquid material. Unfortunately, I had this problem: when I give full thrust and try to activate the water pump at the same time, the ...
4
votes
1answer
33 views

How do I test if my DX5e antenna is still good?

I have a second hand DX5e tx that I haven't really used a ton yet, just on a little Blade Inductrix, within my house. However, the upper plastic end is broken off and the actual antenna seems pretty ...
5
votes
1answer
46 views

Estimate safe ESC curerent for 4108 600kv motors?

Is there a way to safely guess what current ESC's will need to be with this motor (or any motor in general)? The motors are rated 23A in the table, but that's only with a 4s; I might use a 6s in the ...
1
vote
0answers
27 views

F450 frame all legs are not stable

I have one of the so called popular F450 frames. Not the original dji one, but chinese part. Now, I have assembled motors and ESCs. The assembling process was harder than it should be, probably ...
12
votes
2answers
975 views

In what situations do puffy batteries pose a risk of ignition?

In this Drones and Model Aircraft SE question, Is it safe to fly LiPo batteries after they get "puffy"?, David O. asked if it is safe to use puffy LiPo batteries. Gparyani provided an ...
3
votes
1answer
51 views

Can “toy” drone FC firmware be tweaked?

Can the flight controller of cheap "toy" grade quads, such as the Blade Inductrix, be programmed at all? I'd assume that even if it's possible, it wouldn't be practical. I don't have any ...
4
votes
1answer
51 views

Is Naze32 capable of autopilot?

(Assuming that you have the required telemetry hardware, barometer, etc...) Are any versions of the Naze32 capable of autopilot features, such as altitude hold? How about more advanced things like ...
5
votes
2answers
1k views

Can motors be “too big” for any reason?

I'm wondering, what would make a certain motor "too powerful/large" for a build? Could software/firmware of FC/ESCs be a problem? The only thing I could come up with is strength of the frame ...
3
votes
0answers
28 views

What are the steps to connect the Pixhawk to Auvidea J120 board using a telemetry cable?

I'm looking to get a connection between my Pixhawk and Onboard GPU using telemetry. However, it doesn't seem to be connecting for some reason. I followed the instructions given on this page - https://...
6
votes
0answers
62 views

Are there any automated path planner algorithms for indoor drones? [closed]

I am developing a drone for sanitization, I am looking for a middle layer Software/Algorithms/Method which decides the flight path. The needs are as follows: Need to cover whole indoor area, for ...
4
votes
1answer
70 views

Finding the velocity and position for small distance from IMU sensors

I am working on finding Velocity and Displacement from an IMU sensor (MPU9250). I have a Navio2 RPi4 setup, which gives me raw data (acceleration, Gyro, Magnetic). As per my research this can be done ...
4
votes
1answer
72 views

Motor size and Kv advice for ZD550?

I'm building my first drone out of the ZD550 frame. Most of the extra weight would be from a small gimbal like this (180g) and a gopro hero 4 (83g). What kv/size of motor would be ideal for this ...
5
votes
1answer
75 views

Is WiFi drone control protocol standardized?

I'm searching for an app to control a Zerotech Doby drone. The official app "DoFun" is no more available, but surprisingly it works with another Chinese app "FlightGo". I wonder if ...
3
votes
1answer
40 views

FPV lag on visuo xs812

I have a visuo xs812 but with a very slow lag. I know that for many people this is a problem, does anyone know a fix?
5
votes
2answers
83 views

How to control a gimbal remotely?

Is there a simple way to remotely control the panning of a gimbal (preferably with a separate stick/joystick, controlled by another person)? I'm planning to do a budget cinematography/utility camera ...
5
votes
1answer
67 views

What is a good 3'' BNF that can be used indoors and outdoors?

I am looking to get a new quadcopter that will work in a variety of places. I want it to be a 3'' drone so that I can fly it both outside and inside. I would prefer if it had prop guards or ducts of ...
5
votes
2answers
609 views

Will this set up fry my components?

Frame: Carbon fiber 250mm Motors: 2300Kv 2204 Power board: Matek built in BEC’s 12V + 5V FC: CC3D ESCs: HLGRC 30A opto (no BEC) Battery: Turnigy Graphene 14V 75C 4S Receiver: Turnigy iA6B My question ...
16
votes
2answers
6k views

Is owning, but not flying, a drone in Germany illegal?

I live in Germany but I travel a lot around the world; my new hobby is aerial photography, for this I am considering buying a drone. Since Germany has some rules about drones, can I have a drone in ...
6
votes
1answer
96 views

Drone Controller, PID Is Enough, or ODE Modeling Required?

I am planning to build a remote controlled dualcopter where I have two propellers, one on top and one on the bottom. The bottom rotor will be gimbal based for thrust vectoring. Something like this, ...
5
votes
1answer
78 views

Finding a ready-to-fly Taranis compatible, Eachine compatible, S4 compatible under 200€ drone

The question I'm looking for a drone under 200€, preferably 5" (as that's what I'm used to) but other sizes are ok, that can be purchased/delivered to France, is compatible with a Taranis X7 and ...
6
votes
2answers
201 views

Unrecognised ESC motor connector

I purchased an ESC and a Speed 400 motor about 17 years ago with the intention of building my first electric powered model plane. Life took its various turns though and my time for R/C modelling dried ...
5
votes
1answer
59 views

Seeking a cheap, programmable drone, for use in the UK

This meta question states that recommendation questions are on-topic. However, as I am new here, I don't want to commit a fox's foot (faux pas ;-), so please vote to close, rather than downvote, if I ...
5
votes
1answer
37 views

First radio transmitter. Taranis X-Lite, X9 Lite or Jumper T8GS?

I'm looking for a nice budget radio transmitter to start in the hooby and stay with it for some good time. I'm found these three good options but I'm tottaly newbie so I don't know the pros and cons ...
6
votes
1answer
783 views

Can a receiver get damaged if you power it up without an antenna?

My r-xsr receiver short circuited after a crash recently. When investigating the reason, I found two things; The filtering capacitor had come loose, as well as one of the antennae on the r-xsr. Since ...
13
votes
3answers
1k views

Could a drone collect a river sample?

I know very little about drones, but I'm trying to learn if collecting river samples is something that could be done autonomously using commercial drones? Is it possible to give the drone some ...
7
votes
1answer
74 views

Is there a method to wire a brushless motor to an ESC so it spins in the required direction first time?

So I know that three phase motors will reverse direction when 2 wires are swapped round, or that the direction can be changed in software (such as BLHeli). But is there a method to get it right first ...
6
votes
2answers
63 views

What are the benefits to different types of frame arrangements?

When looking at different frames, there are lots of descriptions for different ways the arms are set up. Are there objective descriptions of how these arrangement change the flight characteristics ...
3
votes
3answers
294 views

Can I use two 2s lipo batteries to power my FPV DJI goggles?

The FPV DJI goggles can take 7.4-17.6 Voltage. I am using a 2S 3000mAh LiPo battery. My plan is to buy another of the same liPo battery and attach it with a female to 2 male TX60 connector, making it ...
5
votes
1answer
27 views

Taranis X9D Plus 2019: Switches SE,SF,SG,SH, and SI are not working/responding on Betaflight

So switches SA,SB,SC, and SD work on Betaflight. Aux channels 1 through 4. But switches SE,SF,SG,SH, and SI are not working/responding on Betaflight. Aux channel 5 through 9, I believe I am using TBS ...
4
votes
1answer
32 views

Stick commands does not register

I'm trying to follow this playlist to set up a drone with iNav, but when it comes to calibrating the compass, the stick command doesn't seem to work (the status light on the FC doesn't flash rapidly ...
7
votes
0answers
40 views

Image stutter in MAVIC Air 2 recordings

I noticed this persistent image stutter with some of the footage recorded by my brand new DJI MAVIC Air 2. Especially the long first shot of the video shows the issue when you look at the faster ...
-2
votes
1answer
75 views

DJI Mavic 2 Pro send still images to a laptop in real-time [closed]

Is it possible to send photos captured by a DJI Mavic 2 Pro to a laptop in real time?
4
votes
1answer
39 views

How do you use the PID controller to compensate for a higher weight?

How should you adjust the PID values if you add weight to a quadcopter (For example a GoPro), so that the flight characteristics stay as close as possible to how they were before? I assume that the ...
4
votes
1answer
43 views

Cannot configure ESC: BLHeli-Configuator connects but with blank screen

ESC: GEPRC STABLE PRO F7 ESC BL32 2-6S 4in1 Specs:35A BLheli_32 ESC Steps to connect to BLHeli-Configurator: Connect to flight control (GEPRC STABLE PRO F7 35A) via mini usb Connect Lipo Battery to ...
5
votes
1answer
51 views

What factors affect the noise level of propellers?

I've noticed that the noise level of different quadcopters can vary quite a bit, especially in the sub 3" range. For example, some of the Tinyhawk models are extremely quiet, while other similarly ...
5
votes
0answers
23 views

DJI Inspire 1 v2.0 Laptop Control

What are the options available to allow someone to control a DJI Inspire 1 v2.0 using an application installed on a Windows laptop? I know there are dongles available, but I'm not certain which are ...
8
votes
1answer
138 views

What can I do with a LiPo whose balance lead has been destroyed?

I'm starting a bit of a collection of batteries which have been ejected during a crash and ended up with a destroyed balance lead. Is there anything other than disposing of them that I can do, ...
5
votes
1answer
39 views

DJI Go Android App Flight Simulator

So I have two DJI platforms, and have had them for about 6 months now. I keep seeing these references all over the Internet and YouTube about how handy it is to have the DJI simulator built into the ...
5
votes
1answer
26 views

Can Reinforcement Learning be used for UAV waypoint control?

I want to make a drone which can follow static and dynamic waypoints. I am a total beginner in the drone field so I can't figure out whether I should use Reinforcement Learning or other learning ...
2
votes
3answers
50 views

Wired drone using very high voltage?

For those of you who don't know: electricity can be "stepped up" to carry the same amount of power over a thinner wire, over much longer distances with minimal losses. Once the power reaches the ...
4
votes
2answers
46 views

How does having bent antenna impact reception?

I have heard that when an antenna is bent, it can reduce the performance of the antenna and thus limit the range of a drone. This is mentioned in this video at 5:29. I am wondering why a bend in an ...
3
votes
1answer
43 views

27+ inch racing propeller suggestions?

I'm looking for some propellers that can handle high rpm (7000-9000) and are large in size. (27+inches length) (pitch: 15+) Any suggestions?
2
votes
1answer
36 views

Recommendations for a BLDC motor and battery for a 28x20 propeller?

I'm looking for a motor and battery set up that can last for over an hour and spin the propeller at 6000+ rpm. The propeller is a 28x20 single blade being connected to a second blade for a total of 56 ...

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