Any tricks to optumize your plane?

[Mat]

Is there alot of drag from where our motor is located or any thing else that should be improved. If you add mass to reduce drag is that good?

[Andy W]

Seems you've pretty much got a thread goinmg on this already - http://www.rcgroups.com/forums/showthread.php?t=299654
..a

[Mat]

Is there a mass to watts conversion, and if so would it give you the minimum amout of power needed to stay up at a specific altitude or is there to many other veriables.

[Ollie]

http://www.motocalc.com/

[Mat]

To reduce vortex should you round touwd the center of the plane.

[Ollie]

First you link vortex with lift along the wing for best destribution. It is a complex design problem.
http://www.rcgroups.com/forums/showthread.php?t=287518
It has been truely quipped that," An aircraft is a set of compromizes flying in formation." It has also been said, of aircraft design, with only slight exageration, that,"Everything affects everything else."

Again, for you to study.
Model Aircraft Aerodynamics (A11007) Simons.*
The fourth edition has been almost completely revised and redesigned, as well as new material added. 344 pgs.; Sftbd.*
$19.95

[Mat]

I just got that book a few days ago and on p.16 in the drag formula it had a fancy p and I am wondering what that represents.

[Ollie]

Greek (p) is rho.
p = The density of the fluid measured in kg/m^3.
http://www.grc.nasa.gov/WWW/K-12/airplane/gasprop.html
http://www.grc.nasa.gov/WWW/K-12/airplane/bga.html