Linked Questions

20 votes
6 answers
4k views

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 ...
Greg McNulty's user avatar
2 votes
4 answers
4k views

Would a 50 mph aircraft holding a ground pattern in a 20 mph cross wind risk stalling by abruptly rolling away from a crosswind?

This is another play on the "down wind turn myth". We all know a plane flying in a "uniformly moving airmass" is not affected by wind direction and speed. But a plane following a ground track must ...
Robert DiGiovanni's user avatar
13 votes
4 answers
2k views

Is there a name for change in attitude with respect to time?

I'm in the process of writing a flight-dynamics software program, but I'm not sure what to call the derivatives of the aircraft attitude. If it was in one dimension, they would be the "angular ...
Nicolas Holthaus's user avatar
6 votes
1 answer
17k views

What is the relation between roll angle and pitch angle?

I was wondering about roll angle and pitch angle values. Will I get same pitch angle at different roll angles and vice-versa? For example. At its initial position, the aircraft is standing on the ...
Pratik's user avatar
  • 63
2 votes
4 answers
3k views

What is the difference between turn rate and yaw rate in aircraft?

Attitude heading computers generate both a turn rate and a yaw rate. How are these different from each other? Is Euler yaw rate the same as turn rate?
Balaramakrishna Rachumallu's user avatar
4 votes
4 answers
843 views

Does climbing or descending affect the rate of turn?

In the past, I used to have this idea that if all other factors remain constant, then climbing increases the rate of turn while descending decreases it. This idea was most likely planted into my mind ...
Aditya Sharma's user avatar
5 votes
1 answer
856 views

How to compute quaternions from raw IMU and magnetometer data?

I have raw accelerometer data (w_ib^b) and magnetometer data from a UAV test flight. I would like to reconstruct the quaternion dynamics of the UAV without accumulating error from integration. The ...
user2480019's user avatar
3 votes
2 answers
471 views

How to compute final aircraft attitude, if we know starting attitude and degrees of rotation around each axis? (Specific example)

I'm flying due north (000 degrees heading), with bank angle of 0 degrees and a pitch attitude of 0 degrees. I roll the airplane 30 degrees to the right, rotating only around the aircraft's roll axis (...
quiet flyer's user avatar
2 votes
1 answer
425 views

How do the linearised equations of motion work?

I am reading this book: "Flight Dynamic Principles" by Cook, second edition. You can read it here: https://aerocastle.files.wordpress.com/2012/04/flightdynamicsprinciples.pdf First, go to the page 76,...
Dat's user avatar
  • 1,000
-7 votes
1 answer
359 views

What is difference between pitch & lift? [closed]

What is the difference between pitch and lift of an aircraft?Please kindly try to include graphics with your answers
DSP_CS's user avatar
  • 163