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Questions tagged [fixed-wing]

For questions about aircraft that primarily use wings to generate lift.

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RC Plane can fly or not?

I'm making a RC Airplane using Sunboard and Cardboard. The wing is about 80cm long, with a wing profile looking like I also connected a A2212 1000kv Brushless motor with a 10x4.5 Inch Propeller with ...
S.A's user avatar
  • 45
0 votes
0 answers
27 views

How to reduce fixed-wing FPV wobble?

I've been flying fixed wing and quadcopter FPV for a while, and one problem all the planes have is they wobble or get bumped around by turbulence, even on relatively calm days. Are there types of ...
Robin Bennett's user avatar
1 vote
0 answers
27 views

Pitch control in PX4 autopilot

I am trying to translate controller diagram of fixed wing px4 attitude control into mathematical form. While going through the controller diagram Fixed-Wing Attitude Controller looking into PX4 github ...
Shivam Goswami's user avatar
1 vote
1 answer
68 views

Should I use a tandem wing for my RC aircraft?

I am designing an RC airplane. My goal weight is under 10 lbs so I'm designing parameters based off of a 10 lb weight to allow for some overshoot. I also would like the wingspan to be around 4.5 ft ...
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2 votes
1 answer
183 views

Would it be problematic to have only on/off throttle control?

On a remote controlled airplane, would it be a problem to only have on/off throttle control and not be able to set a particular throttle level? Would landing be possible?
kj7rrv's user avatar
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2 votes
1 answer
380 views

Can a A2212/6T ,2200Kv motor with 8” inch propeller can lift an rc plane?

I have 4 motors installed in my rc Aircraft, A2212/6T 2200kv BLDC with 8” propeller can it fly a rc air craft weigh 3000gms, if not directly from ground , if i throw it in the air like gliders will it ...
Ayush Thakur's user avatar
0 votes
0 answers
55 views

Can the CV code shown in this video can be used for fixed wing plane?

https://youtu.be/uzrugbQCO64 This is video mentioned. Its a DIY object tracking uav. Here used is a quadcopter can it be used for fixed wing plane. In this case it is quadcopter. Code only command the ...
user avatar
1 vote
2 answers
92 views

Does a brushless motor ESC need thicker input wires than output wires

For this question, I have my own opinion and want to know whether it's correct or not. We know that ESC use pwm to control speed. For long range fixed wing at cruise speed, ESC may work at a ...
lotsof one's user avatar
2 votes
1 answer
621 views

ESC wiring to FC for wing - 2 or 3 pins?

I'm new to the wing builds and I'm a bit confused. I ordered the kit for the AR Wing Pro, which includes BLDC motor and ESC. The ESC comes with the mandatory 2 power lines and 3 thick lines for the ...
MaM's user avatar
  • 235
2 votes
0 answers
35 views

Custom flight mode in pixhawk flight controller

I am trying to convert a pixhawk drone into a quadrotor biplane tailsitter. Is there a way to create a transition flight mode where a motor pair will lower its RPM for a while until the drone's axis ...
Apoorv Pandey's user avatar
2 votes
1 answer
102 views

How to know current image bands?

I work with sets of images from sensors such as: DJI P4 Multispectral DJI P4 PRO MicaSense RedEdge-MX MicaSense RedEdge-P Then I extract attributes from the images. For this, I need to know the ...
Jose Luis Landivar S's user avatar
4 votes
1 answer
197 views

In the United States, what are the legal distinctions between a rocket powered RC plane, an actively stabilized model rocket, and a drone?

Model rockets launch and fly autonomously, and can be either actively or passively stabilized. Their powered flight is generally confined to vertical trajectories. Drones fly predominantly horizontal ...
jpt4's user avatar
  • 41
2 votes
2 answers
1k views

How does the Switchblade 300 drone maneuver?

I was wondering how the Switchblade 300 drone (https://www.avinc.com/tms/switchblade) is able to maneuver? On all photos I can find, there is no sign of any ailerons - so does it wiggle the wings at ...
Jørn Wildt's user avatar
2 votes
2 answers
684 views

Which propeller for these motors for rc airplane

I am new to this hobby and I am looking to make a rc airplane myself but I am confused to buy which propeller for this motor? Shall i buy CW or CCW propeller Thanks, Paarth
Paarth Katiyar's user avatar
3 votes
1 answer
88 views

How to couple panel method velocities with boundary layer equations to obtain viscous pressure and lift coefficient?

I have calculated CP(pressure coefficient) and CL(Lift coefficient) for a NACA2412 airfoil using the panel method but as it only allows us to calculate the same for inviscid flow, I could not get the ...
Twisampati Roy Chowdhury's user avatar
6 votes
1 answer
446 views

How close can a drone be to a wind turbine in Germany?

I operate a rather professional fixed wing drone which requires pre-flight planning via an app and doesn't support direct control besides instant flight abortion and "return to landing zone" ...
Erik's user avatar
  • 163
3 votes
1 answer
543 views

Can a BLDC motor meant for a multi-rotor be used for a fixed-wing aircraft?

I am designing a propulsion system for a fixed wing aircraft (RC plane). I have found a motor that meets all the requirements of my fixed wing aircraft. But the motor was for a multi rotor. Can we use ...
Anshuman Phadke's user avatar
8 votes
3 answers
110 views

When flying, how can I identify the orientation of a distant fixed wing model aircraft?

I'm learning to fly fixed wing model aircraft via an RC simulator. I can control the aircraft well in Chase mode, where my viewpoint follows the aircraft. However, in Fixed mode, where my view is ...
SRobertJames's user avatar
4 votes
0 answers
191 views

How can I use XFLR5 in Ubuntu 20.04

I'm working on an aircraft project and I need XFLR5 to decide on a suitable airfoil. However, I can see that it is only available in Ubuntu 18.04. I'm using Ubuntu 20.04. What can I do about this? Is ...
Ogweno Emmanuel's user avatar
4 votes
0 answers
43 views

Overheating (fire thrown out of the nozzle)

0 At first I copied https://www.jetcat.de/en/productdetails/produkte/jetcat/produkte/hobby/Engines/P160_rxi_b Where I manufactured and installed all the parts and they are very similar to the original ...
Mark's user avatar
  • 41
8 votes
4 answers
172 views

What should I use to cover this plane with?

Unsatisfied with the weight of my first model (a FT Tiny Trainer), I decided to build something lighter. Since overweight foamboard was the downfall of my first model, I decided to try reducing amount ...
ThatCoolCoder's user avatar
4 votes
1 answer
166 views

IR and/or Thermal FPV

I'm interested in thermal imaging and night vision and applying it to FPV flight. Can anyone recommend a good night vision FPV camera? I've seen the RunCam Night Eagle, and it looks great, if a little ...
MD88Fan's user avatar
  • 235
5 votes
3 answers
1k views

What would a basic fixed-wing electronic setup look like?

I'm building an FT Tiny Trainer. Currently it's just a chuck glider, but now that I have tested it, I want to add electronics. At first, the plane would be a controlled glider, but then I'd probably ...
ThatCoolCoder's user avatar
3 votes
1 answer
76 views

S800 Reptile Matek F411 auto launch question

I just built my first wing a S800 Reptile V2 using a Matek F411 Wing flight controller. Here is the video of the behavior: https://www.youtube.com/watch?v=muoECu_lvKs I just checked that my Servos are ...
VAAA's user avatar
  • 225
2 votes
1 answer
1k views

How to determine the minimum thrust to weight ratio for a fixed-wing aircraft?

I am considering building a fixed-wing aircraft with foam board, and I'm unsure what the necessary thrust to weight ratio is. With quads, it's easy to determine the necessary thrust. Just find a motor/...
Jacob B's user avatar
  • 5,792
4 votes
1 answer
73 views

What registration is required for 250g to 2kg drones in Australia?

As some of you might know already, I'm planning to get into model aviation. I've been looking at the CASA rules and trying to get my head around them. So far, I've built a FliteTest Tiny Trainer with ...
ThatCoolCoder's user avatar
9 votes
2 answers
1k views

Do laws on 'drones' in Australia apply to fixed wing model aircraft?

I've been looking at the CASA RPA rules (specifically under 250g and under 2kg non-commercial) and there doesn't seem to be a section on fixed-wing aircraft. Do the rules for 'drones' (for instance ...
ThatCoolCoder's user avatar
5 votes
6 answers
1k views

Drones capable of smooth plane/bird-like flight

Multirotors are small rotorcraft with flight dynamics which result in an unnatural "flight experience". Are there multirotor autopilots which would be able to simulate a more "natural&...
Tomas's user avatar
  • 159
6 votes
2 answers
5k views

Do I need CW or CCW props for my plane?

So I'm making an airplane with a motor at the front, do I use CW or CCW props? Pretty sure this is what counts as a puller plane (is that the right term?).
Ceramicmrno0b's user avatar
5 votes
1 answer
885 views

Picking the right prop pitch for my plane

Sorry for all the questions, but I'm trying to figure out what I need before ordering a hundred dollars worth of stuff and then find out I got the wrong stuff. So from what I understand of this site, ...
Ceramicmrno0b's user avatar
5 votes
3 answers
2k views

Is it feasible to use an RC car transmitter/receiver to control an RC plane?

I am a beginner to the hobby and I've been constructing chuck gliders out of foam board and card for a few years. I'd like to start making models that I can control, but I don't have much of a budget. ...
ThatCoolCoder's user avatar
8 votes
1 answer
187 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' ...
Flux's user avatar
  • 343
4 votes
0 answers
45 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 ...
Flux's user avatar
  • 343
3 votes
1 answer
95 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 ...
Flux's user avatar
  • 343
4 votes
3 answers
256 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 ...
Flux's user avatar
  • 343
10 votes
4 answers
3k views

Do aerodynamics scale for model aircraft?

If I wanted to make a scale model plane that looked like a real aircraft, could I just scale down all of the measurements of the actual aircraft to make a model aircraft with similar flight ...
Jacob B's user avatar
  • 5,792
3 votes
2 answers
361 views

Is it possible to control an RC plane using reaction wheels?

I recently had an idea involving reaction wheels and a model airplane. Would it be possible to control an RC plane using reaction wheels rather that servos and control surfaces? Would a reaction wheel ...
Jacob B's user avatar
  • 5,792
9 votes
1 answer
2k views

Why does moving the centre of gravity forward increase stability of a plane?

It's a common saying that "A nose heavy plane flies poorly, a tail heavy plane flies once", but why does moving the centre of gravity backwards or forwards change the stability?
Robin Bennett's user avatar
3 votes
2 answers
801 views

What is the purpose of adjusting the thrust angle for model aircraft?

I have a few model aircraft and know that the motor is often slightly offset. I have heard conflicting reasons as to why this is done. Some people claim it is because of motor torque and other people ...
Jacob B's user avatar
  • 5,792
2 votes
1 answer
351 views

"Rogallo wing" balsa rubber-band model plan - do you have one?

Several decades ago - 4 or 5 at least - I saw a plan in a model aircraft magazine for a very simple rubber-band driven plane that used a piece of a dry cleaner bag (thin plastic wrap style) as a ...
davidbak's user avatar
  • 123
10 votes
1 answer
600 views

How to determine the correct specification of servo for a control surface

Servos come in a large range of sizes, torque values, etc. and the servo to use depends on a number of factors such as control surface size, aircraft speed and desired manoeuvrability. While there is ...
Kralc's user avatar
  • 6,036
8 votes
1 answer
824 views

What is the typical glide ratio of Kline-Fogleman airfoils?

Kline-Fogleman (KFm) airfoils, despite their seeming contradiction with known principles of aerodynamics, seem to be very popular in RC modelling, and are known to have a peculiar stall behavior, with ...
FlashCactus's user avatar
  • 2,997
9 votes
3 answers
5k views

Can I run two motors off of one ESC?

Normally, a dual-motor plane has two ESCs but could I connect two brushless motors to one ESC? What would happen to the torque and speed of each of the two motors connected to the ESC?
Jacob B's user avatar
  • 5,792
6 votes
1 answer
171 views

What are the typical methods of constructing a large airframe?

When building a 5 feet wingspan UAV, what building techniques: used on smaller aircraft can't scale to aircraft of this size? are best used on aircraft of this size? Ideally, I want a simple ...
Krish's user avatar
  • 752
6 votes
1 answer
175 views

How can I set up differential thrust for a model airplane?

I have a Taranis Qx7 Radio and built an FT Mighty-Mini Scout which flew great, but now I want to put an extra motor and fly it using differential thrust. My understanding is that it needs to be set up ...
Paulino Gomez's user avatar