oh dear, sooo much info for such a little plane.
This is wHAT ANOTHER GUY SAID ON WATT FLYER...
http://www.wattflyer.com/forums/show...t=11087&page=2
Quote:
Originally Posted by pdxmonkeyboy2002 View Post
I heard that the speed 400 would only get you about 40mph. I am looking for something in the 70mph range....
Heavens no....someone is using the wrong prop.
On 8 600AE nicads cells (it was that long ago!) with a 4.7x4.7 prop I was easily in the 70 mph range......
Pitch speed for my setup was 68mph and it was exceeding that. I know that sounds impossible but sleek fast airplanes regularly exceed pitch speed - trust me....
And at that speed and size it required almost constant turning.....
If I were building this model today - I would not use a speed 400 motor.
Rather I would use the hot wind custom CDR motor or one of the little screamers with a small light 3s Lipoly.....
10-11 amps on one of those with 3s voltage and a 5x5 prop should put in the 80 pitch range and it will likely go a bit better than that. All with a very light setup....might actually make that plane fly well!
Mike
so as you can see, as the confusion mounts, I am thinking of just sticking an .049 on it and launching the thing......