Giant Scale Aircraft - 3D & Aerobatic Discuss all your 3D & Aerobatic giant scale airplanes right here!

engine thrust

Old 12-24-2007, 10:23 PM
Senior Member
Thread Starter
Join Date: Nov 2006
Location: ville platte, LA
Posts: 144
Likes: 0
Received 0 Likes on 0 Posts
Default engine thrust

Is there a way to figure thrust without using a scale is there a formula rpm x prop =thrust can anyone help?
Old 12-24-2007, 11:29 PM
My Feedback: (41)
JoeAirPort's Avatar
Join Date: Aug 2003
Location: Milwaukee, WI
Posts: 10,259
Likes: 0
Received 2 Likes on 2 Posts
Default RE: engine thrust

This is just a guide. Prop's are all different so the numbers will vary. Different brand props of the same pitch and diameter will vary....even props of the same brand will vary slightly. It's also a function of atmospheric conditions too. This chart says a 22x8 will pull 24# at 7000 RPM. That's very close to what I've seen people post here using their digital fish scales tied to the plane...and other contraptions.
Old 12-25-2007, 02:03 PM
My Feedback: (1)
RTK's Avatar
Join Date: Apr 2003
Location: Left Coast , CA
Posts: 4,890
Likes: 0
Received 0 Likes on 0 Posts
Default RE: engine thrust

Go to Pe Reivers web site. He has the most accurate spread sheet thrust calculator I have ever seen. His numbers come out extremely close to my non scientific fish scale test
Old 12-25-2007, 03:28 PM
Senior Member
Join Date: Jan 2002
Location: Arcen, , NETHERLANDS
Posts: 6,571
Likes: 0
Received 2 Likes on 2 Posts
Default RE: engine thrust

this link is better

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are On

Thread Tools
Search this Thread

Contact Us - Manage Preferences Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.