Notice: This version of the RCU Marketplace is no longer accepting new listings.
We have a brand new, easy to use RCU Marketplace
Come take a look. On April 5, 2018, once all existing listings have expired, the old marketplace will close for good. In the meantime, feel free to browse what is for sale here, but please make any new for-sale or trade listing in the new Marketplace!
I have two NIB K&B .21 (3.5cc) Combat Special engines. Model 8901. These are last and final edition of this venerable line of engines. They come as pictured untouched by me in their factory wrapper with muffler. I have another one mounted in a small pattern plane with a mini pipe and it really performs! much better than the previous OS .25. These FIRE (Front Intake Rear Exhaust) engines are ideal for applications where you want the most power for the displacement. I have spoken to the folks who worked at K&B and was told many different versions of this engine were produced This is the last of the line and top of the hill! It would be suitable for use in a Ducted Fan application as well. $125 each plus shipping. If you want both engines $225 plus shipping. Reasonable offers accepted