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Old 11-10-2009 | 10:29 AM
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EscapeFlyer
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From: Brooklyn Center, MN
Default RE: Sig Smith Miniplane

TCraft Lover-

quote:

ORIGINAL: A&PMECH

Has anyone out there put an O.S. 70 4 stroke on a Sig Smith Miniplane. If so, was there balance issues?



I watched a Smith Miniplane video on Youtube last nite in which the pilot claims to have been using an OS 70 and 12-6 prop.

Dave
So did I. But you will also notice that not one time did he ever have control of the aircraft on take off. I remember he aborted take off at least three times because he could never control the ground looping.

The 70 will fly it, so would a G63. But I wouldn't recommend either.

I also saw a video of the mini with a Magnum .52. It had plenty of power.

At higher altitudes I would probably be recomending the .70. But even in Denver, the Saito .56 was perfect.

Regarding the fuse joints:

This is where it is a builder's kit for sure. I would lay the 1/4 square stick on top of the plan, use a straight edge and mark the angle on the stick. Then I would either cut it with my exacto knife, or better yet if you have one, use a disk sander with the table at 90 degrees to ensure a perfect angle.

I enjoy the mini build emensly. Now I'm going to have to build another! [sm=shades_smile.gif]

Brian