Featherlite pic and rpm's
 

Here it is. Got the pics to work.
Featherlite 21cc, Throttle coupled spark advance (TCSA)
Electronic ignition.
Turned 0.030" off the bottom of the jug to increase compression
Turned 0.030" off the perimeter of the top of the piston to maintain exhaust opening and closing timing.
By lowering the jug, the intake actually opens earlier and closes later - increased intake duration.
Larger carb, to get a two needle.
Twelve ounces of fuel thru it.
Turns a Zinger 15 x 6 a whole 7,000 revs with no muffler. I didn't work on that yet. 2.5 pounds all up, sans muffler.
Fun to play with, probably disappointing to fly.
How would it do on a Great Planes tripe or 1/4 scale clipped wing Monocoupe?
Thanks for lookin', Mark Rose

Wow...
 

Seems like a LOT of work for that size motor....

Looks good though!!

You could bolt that to the front of a SIG Kadet LT probably...fun combo....

Or maybe that new Bruce Tharp Flyin King 80 incher.

Looks good!
CrazyHerb

Yes, too much work
 

But I had to try. Good ideas for planes. Thanks, Mark

Featherlite pic and rpm's
 

My Poulan 25 is destined for the snout of my Senior Telemaster...

RE: Featherlite pic and rpm's
 

nice work! I have the same engine waiting in my workshop, seeing yours i will work in mine tomorrow. The plane i will put this engine is the Cap 232 tnt models 1.80m wingspan

RE: Featherlite pic and rpm's
 

Hey Joe try it on a Hobby People's EXCITE 90 It will fly great I had one but it got stolen now I need to buy or make another one, Try it you'll like it. Have fun

RE: Featherlite pic and rpm's
 

Joe: Nice work on that Featherlite!!! Gotta work on my baby engine now! Volture...how mutch does your Poulan weigh? Thanks Capt,n