ORIGINAL: travwhit
I have been tuning a new Tower Hobbies .46 with an 11X5 Nextstar red tip prop on it and at one point thought I was ready to go fly, however I was running a little hot at 340 degrees. I use 10% Wildcat Extra and was turning 12,500 RPM and blowing 65 MPH wind six inches behind the prop. I pointed it up at wide open throttle, pinched the fuel line and rpm's increased. I then came to idle still pointed upward and slow to moderatly advanced throttle the way I would if I were flying, she sputtered and went dead. In an effort to catch it I brought the throttle back to idle but it was useless, the flame was extigused. I sat it on the table and backed the low speed needle out 1/4 turn, recranked and now at half throttle it sputters and would scare the bejebies out of me if I were flying. I put the LSN back to where I was getting good transition, Rechecked and richened the HSN but temp was at 386 degrees, and RPM's were at around 12,000. I let the engine cool, put a hose to the carb, sprayed it with dishwashing soap and water and blew till I was tuning green, and could not find a leak. So now, am I too hot, wrong prop wrong fuel, or what? Oh yea, I am flying an Explorer, a 65 inch top wing trainer with symetrical wing and weighs in at 5.5 pounds. Thanks for you help.
Trav
Everyone else has addressed your overheating issue properly.
What I want to know is who sells your model? It sounds interesting because of the 65" wingspan, fully symmetrical airfoil and the very low weight. TIA
Ed Cregger