Questions tagged [fixed-wing]

For questions about aircraft that use wings to generate lift.

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9
votes
2answers
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 ...
5
votes
3answers
389 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. ...
7
votes
1answer
96 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
20 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 ...
3
votes
1answer
52 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
3answers
82 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 ...
10
votes
4answers
1k 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 ...
3
votes
1answer
49 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 ...
9
votes
1answer
1k 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?
3
votes
2answers
191 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 ...
2
votes
1answer
76 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 ...
10
votes
1answer
79 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 ...
8
votes
1answer
92 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 ...
4
votes
3answers
94 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?
6
votes
1answer
78 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 ...
6
votes
1answer
76 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 ...