Goldberg Super Chipmunk Engine Recommendation
03-08-2005, 07:43 AM
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Goldberg Super Chipmunk Engine Recommendation
Hey guys, I am getting ready to build the Carl Goldberg Super Chipmunk and I was looking for suggestions on an engine. I am leaning toward either an OS 61FX or an OS 91FX. Any suggestions would be much appreciated. I am planning on running separate aileron servos and adding a fiberglass cowl and wheel pants and possibly a smoke system. Thanks
03-08-2005, 02:22 PM
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RE: Goldberg Super Chipmunk Engine Recommendation
Hi geno472,
I have a ST 75 in mine and it provides plenty of power for the way I fly. Whils't the ST performs very well it sounds like a two stroke
. If I were building the Super Chippy today I would wait until I could afford a Saito 82 or similar quality four stroke.
Based on my experience with the ST swinging a Bolly Clubman 12.5 x 6 the 91 would significantly overpower the model............but lots of people like that[sm=sunsmiley.gif]
Cheers,
Colin
I have a ST 75 in mine and it provides plenty of power for the way I fly. Whils't the ST performs very well it sounds like a two stroke
. If I were building the Super Chippy today I would wait until I could afford a Saito 82 or similar quality four stroke.Based on my experience with the ST swinging a Bolly Clubman 12.5 x 6 the 91 would significantly overpower the model............but lots of people like that[sm=sunsmiley.gif]
Cheers,
Colin
03-08-2005, 02:37 PM
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RE: Goldberg Super Chipmunk Engine Recommendation
A fellow club member has an OS 91FS in his, what a great sound when it flew by low. Oh..and build the flaps they work very well.
03-08-2005, 04:07 PM
#5
RE: Goldberg Super Chipmunk Engine Recommendation
Tha .61 will fly it very well. A .91 Fs will fly it well also but sounds so much better. I think this plane is made to have a .91 four stroke in it.
Dru.
Dru.
03-08-2005, 07:57 PM
#6
RE: Goldberg Super Chipmunk Engine Recommendation
Geno, If you're debating between those two engines, go with the 91FX. The two engines weigh the same, so why not go with the extra power. I have the 91FX in my Goldberg Chipmunk and and I would not rate it as over powered at all. I do plan to switch to a 4-stroke in the near future, probably a Saito 100........RS
03-08-2005, 10:27 PM
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RE: Goldberg Super Chipmunk Engine Recommendation
61 fx or Saito 82 will fly it but Saito 91 or Saito 100 is obviously better.
This is mine with Saito 91 (the best bid for a $ today)
This is mine with Saito 91 (the best bid for a $ today)
03-09-2005, 09:02 AM
#8
RE: Goldberg Super Chipmunk Engine Recommendation
IMHO anyone who puts a 2-stroke in this plane should be beaten with a stick.
Aside from that, if you want smoke, you REALLY should consider a 4-stroke.
An OS 91 is all it needs.
A YS 110 would be outrageous
Aside from that, if you want smoke, you REALLY should consider a 4-stroke.
An OS 91 is all it needs.
A YS 110 would be outrageous
