I"ve had my Pat for over two years now.
I put a MVVS 49 with pipe and it's a fine combination.Quiet a bit of
lead in the tail. With the 91,you'll have one heavy weight and probably
won't gain that much and the balsa cowling around the engine will really
be carved away.
If your dead set for the 91 I'd use a vibration mount but your really
gonna be squeezing it in,if at all.
Thanks for all comments! It seems that I haven't really got a straight
answer so far. From talking to several guys at the field who recommended a
Sullivan engine mounting that uses gromet to damp out the vibrations.
Others said that would make the vibration worse since engine and mounting
are not one solid piece. These are all theories and none of them really
tests it. Hopefully someone will come alone with a better tested solution.
I recently built a GP Patriot XL and haven't flown it. It has a Super
Tigre .61 on it. I have done many ground tests with it. It does vibrate,
but not very much. To prevent the vibration, I simply made the idle
higher than normal so it wouldn't rattle around. Hope this helps :D
Well, I don't usually worry about the nose cone. It has a 12x8 sport
prop on it. a couple days ago, I took it out for another ground check
and then the throttle barrel popped out. Took care of that and she runs
I'll be sure to post some pics soon.
It looks fast just sitting there. :D
Nice job... I hope it flies as good as it looks! I love the sound of
those old Super Tigre mufflers. I have a bunch of old ST engines from
.25 on up, and most are old enough to have those neat exhausts. Great
stuff! The new ones are big and ugly.
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