Go Back  RCU Forums > RC Airplanes > Questions and Answers
Reload this Page >

What size engine?

Questions and Answers If you have general RC questions or answers discuss it here.

What size engine?

Old 09-03-2008, 05:14 PM
Senior Member
Thread Starter
My Feedback: (24)
Join Date: Feb 2002
Location: Gladstone, MO
Posts: 184
Likes: 0
Received 0 Likes on 0 Posts
Default What size engine?

I have a low wing Piper Cherokee with 480 sq." of wing area. The plane is heavier than it should be due to painting it with Imron. I estimate the all up ready for takeoff weight, except fuel, will be 6.5 lbs.

What size engine should I use assuming just a sport flyer with very limited basic aerobatics flying off of grass? I think I would prefer a 2 stroke motor. How about a .46 pro?

All help will be appreciated.


[email protected]
Old 09-03-2008, 05:22 PM
My Feedback: (9)
daveopam's Avatar
Join Date: Oct 2002
Location: ELK CITY, OK
Posts: 7,626
Received 11 Likes on 11 Posts
Default RE: What size engine?

The OS 55 would be my choice. It gives you a little extra punch W/O a weight or size penalty. The .46 will fly it, just with not as much authority.

Old 09-03-2008, 06:44 PM
Senior Member
Join Date: Jun 2006
Location: Sun City Center, FL
Posts: 1,270
Likes: 0
Received 0 Likes on 0 Posts
Default RE: What size engine?

I agree the 46 would be a bit limiting. I feel better too much than not enough power.
Old 09-04-2008, 10:25 AM
Join Date: Oct 2006
Location: Memphis, TN
Posts: 4,183
Likes: 0
Received 0 Likes on 0 Posts
Default RE: What size engine?

I think the .46 is ok but the real problem no matter what engine is your plane will have a tendency for high speed stalls and a high landing speed; shallow climb outs and flat fast approaches will keep it alive.

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

Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service - Do Not Sell My Personal Information -

Copyright 2018 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.