price $2200.00

??? 1930's -40's diesel engine.

It was made by Dooling Brothers company and re-engineered by a fellow named Bruce Underwood in the late 50's and ran on nitro
E-bay "yellow jacket"

description of the yellow jacket near the end of the page
The Dooling story Part 1 Tether cars and the Dooling 61 by Adrian Duncan

Is it coz of the age its so expensive or was it really special? It looked like gas because of the sparkplug.

It says Bruce Underwood Yellow Jacket ???

Fellas wonder why there no pictures of the exhaust side they even showed a truly dedicated marine version. starting bid $3400.00 for a 10cc engine

exhaust view.... funny why he doesn't show the exhaust port

Wow! I couldnt goto the link Im sure ill find a way.

wonder why e-bay guy does not show exhaust port...mmmmm

www.modelenginenews.org/~moden...ng61_1.html#t10

+1^ got to the link. This is a very historic motor here. A piece of model engine memorabilia here $$$$$.

read this passage that was up earlier in the story

"Naturally, the tuning gurus of the day soon turned their attention towards the Dooling. Following an initial effort with his own racing "Special" based upon the Nordec 10 cc model, the legendary tuner Fred Carter soon came up with his own Dooling 61-based "special", which actually ended up more Carter than Dooling. Using this engine, Davenport established a new British record of over 160 mph at the British National Championship meet held at Cambridge. Further success followed when Carter teamed up with Ray Gibbs to establish a British mark of over 146 mph using the 5 cc Carter Special based on the Dooling 29. This was later topped by the establishment of a new 5 cc world record at 152 mph."

This was in a plane but still impressive for 40 plus years ago the dooling 61 also pushed hydros to 70 mph. Sorry its not gas. The plug in the photo threw me off.

very rare Bruce Underwood engine fewer than 1000 made from 1958 to 1970
bulletproof though

thats crazy for a control line aircraft, rc was at its beginning