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General control line discussion => Open Forum => Topic started by: Bill Little on July 05, 2014, 02:27:21 PM

Title: Johnson Stunt Supreme Displacement?
Post by: Bill Little on July 05, 2014, 02:27:21 PM

Hi All,

What is the actual displacement of the Stunt Supreme?  I have heard they are a little less than ".35".  If so, what is it, actually?

Thanks!
BIG Bear
RNMM/AMM

Title: Re: Johnson Stunt Supreme Displacement?
Post by: steve bittner on July 05, 2014, 03:26:56 PM

It is a 35 bore .770 stroke .750 compression 6.5-1 weight 7.6 oz

Title: Re: Johnson Stunt Supreme Displacement?
Post by: Bill Little on July 05, 2014, 04:27:25 PM

Quote from: steve bittner on July 05, 2014, 03:26:56 PM

It is a 35 bore .770 stroke .750 compression 6.5-1 weight 7.6 oz

Thanks, Steve.  I had heard of a .32 or .33 that was said to be an SS and I knew some of the guys here would know.

Thanks!
BIG Bear
RNMM/AMM

Title: Re: Johnson Stunt Supreme Displacement?
Post by: FLOYD CARTER on July 05, 2014, 04:35:35 PM

WHEW!  That's a relief!  Now you can put it in a real big plane.

F.C.

Title: Re: Johnson Stunt Supreme Displacement?
Post by: steve bittner on July 05, 2014, 06:59:44 PM

Johnson had an engine stamped 32 on the side, then early stunt engine with a plain single S stamped on it.  Im using a Johnson 35 in a 59 inch wing span Hi Johnson stuka. It pulls the plane very well about 80/85 thru all the manuvers. If you use a muffler it may kill the power though.

Title: Re: Johnson Stunt Supreme Displacement?
Post by: Garf on July 06, 2014, 11:51:29 AM

Try this: