Engineers! Data needed...

[Fat A1bert]

Hi,

Could anyone tell me where online I may be able to find aircraft data such as wing and tailplane lift coefficients, zero lift pitching moment coefficients, angle of zero lift... etc?

Am creating some MATLAB programmes for trim conditions (trim pitch, elevator angle to trim etc.), but am unable to find this data anywhere! Looking at aircraft with simple unswept, untapered wing planform (preferably low wing) - small commuter type aircraft most likely.

Any help would be most gratefully accepted,

Cheers

FA

[Bus429]

Not sure that sort of information is available in approved data used by maintenance engineers

Try this

[Fat A1bert]

Hey Bus429

Cheers, your google link helped me stumble across ESDU data sheets, don't know why I didn't think of it before! With estimated wing parameters based on the sort of aircraft I'm using, the lift coefficients are pretty much sorted (now to try the others).

Many thanks,

FA

[Bus429]

All beyond my brain capacity; I just (try) to fix 'em.

[Genghis the Engineer]

Try seeing if your local library has a copy of Donald McLean's "Automatic Flight Control Systems", it might help - there are sets of stability derivatives in there for a number of sample aeroplanes, and a lot of worked examples.

Do check the calcs in the book though, there are a few errors I'm afraid.

G