View Single Post
Old 08-14-2011, 05:26 PM   #24
kyleservicetech
Dennis V
 
kyleservicetech's Avatar
 
Join Date: Apr 2008
Location: Wisconsin, USA
Posts: 7,873
Thanked 672 Times in 655 Posts
Club: www.racinercclub.com (I'm the newsletter editor)
Awards Showcase

Outstanding Contributor Award  3kW  2kW  100mph Speed Demon 
iTrader: (1)
Friends: (20)
Default

Originally Posted by slipstick View Post
It's the prop size that's critical because it's the prop that creates the thrust. There are formulae available but they're quite complex involving motor losses, propeller efficiency etc so to get a good estimate of the thrust available most of us simply use one of the many motor calculator programs available, some online some not, some free, some not. See http://www.rcgroups.com/forums/showthread.php?t=606703 for a comprehensive listing of them.

Steve
Since you're attempting to fly a model with practically zero forward speed, seems you'd need a motor with low KV, low RPM and a large diameter prop for maximum thrust. Something like the rotor of a helicopter.

DennyV
Retired and the days are just too short, busier than ever!
kyleservicetech is online now  
  Reply With Quote
 
Page generated in 0.09316 seconds with 17 queries