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Engine basics => Engine set up tips => Topic started by: Steve Dwyer on April 02, 2016, 04:13:36 PM

Title: Comparison OS LA40 to OS 40FP
Post by: Steve Dwyer on April 02, 2016, 04:13:36 PM

Can anyone tell me if these two engines are dimensionally the same, I'm building a Primary Force and plan to use a 40FP I'm waiting to arrive (just bought it) and I have a LA40 available to use for building the fuselage.

Steve

Title: Re: Comparison OS LA40 to OS 40FP
Post by: Tim Wescott on April 02, 2016, 04:15:58 PM

If there's any difference it's the length of the snout (mounting holes to spinner backplate, basically).

Title: Re: Comparison OS LA40 to OS 40FP
Post by: Akihiro Danjo on April 03, 2016, 08:21:42 AM

http://www.osengines.com/parts/engine-specs-discontinued.html

Title: Re: Comparison OS LA40 to OS 40FP
Post by: Dane Martin on April 03, 2016, 09:19:20 AM

I got both here. For mounting purposes, they are identical. If i line up the mounting bolts, it looks like the prop drive is the same length. The overall height is the difference. But in a profile, no big deal there.