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paults2
paults2 is offline
#5
Feb14-04, 03:59 AM
P: 12
Ken,

I don't know if you're familiar with the motocalc software. It's made for modeling performance of rc airplanes. Among other things, it calculates a table of thrust vs. rpm, prop make and type, and airspeed. It also estimates airframe drag. They give a 30-day free trial. It's made for modeling electric powered airplanes, but it can be applied to gas planes. It's a handy program and worth buying. The data base has many types of rc motors and props.

http://www.motocalc.com/motodown.htm


Two other electric modeling programs are pcalc and electricalc:

http://brantuas.com/ezcalc/dma.asp

http://www.slkelectronics.com/ecalc/