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Scale RCM 1/3 Scale Champ Build

TonyHallo

150cc
Quick update on the Champ. Last time out had a bad landing and blew out one of the DuBro pneumatic 5 1/2" tires. I've given up on the idea of pneumatic tires and switched to Sullivan 6" Skylite wheels. The 38 pound per inch landing gear springs seemed a little soft so 50 pound per were ordered and installed. Added 2 degrees washout to the wings by adjusting the lift struts, added aileron to rudder mix, dialed in more aileron differential, removed 1 pound of the previously added 2 1/2 pounds. Two flights yesterday each about 5 minutes, getting better. Plan to remove move weight that was added next time out. Pretty sure I over reacted adding the weight, the flights yesterday convinced me that tail heavy condition was not the problem.
I can summarize the control as sluggish then all of sudden overcontrol. The Roto 85 runs great and sound greats, have a total of 4 temperature monitors on the cylinders, 210f was the maximum reached yesterday of course it was a mid 50's day. If weather cooperates may get another flight in this year, wore my arm out propping on the first start!
 

Snoopy1

640cc Uber Pimp
Quick update on the Champ. Last time out had a bad landing and blew out one of the DuBro pneumatic 5 1/2" tires. I've given up on the idea of pneumatic tires and switched to Sullivan 6" Skylite wheels. The 38 pound per inch landing gear springs seemed a little soft so 50 pound per were ordered and installed. Added 2 degrees washout to the wings by adjusting the lift struts, added aileron to rudder mix, dialed in more aileron differential, removed 1 pound of the previously added 2 1/2 pounds. Two flights yesterday each about 5 minutes, getting better. Plan to remove move weight that was added next time out. Pretty sure I over reacted adding the weight, the flights yesterday convinced me that tail heavy condition was not the problem.
I can summarize the control as sluggish then all of sudden overcontrol. The Roto 85 runs great and sound greats, have a total of 4 temperature monitors on the cylinders, 210f was the maximum reached yesterday of course it was a mid 50's day. If weather cooperates may get another flight in this year, wore my arm out propping on the first start!

To remove one pound of weight must make a big difference. Nice to hear it is up and flying. Sounds like the Roto85 is a success keep us informed about the motor. I am in the hobby just so that I can play with all these motors just kidding but yes a love playing with them.
The next motor I would love own is a DA100 in-line, just love the sound, and power.
 

TonyHallo

150cc
From Saturday, didn't take long to loose the leaves near our field. Leaves just starting to turn in my back yard.

F812D9FA-6EE5-4C1E-8FF1-5D9F1D760D0E (1).jpg
 

TonyHallo

150cc
68F today in the burgh, got three flights in, the last flight engine maximum temperature was 250F. Removed the 9 ounce heavy brass hub and replaced with the Tru Turn washer, believe it weights 2 ounces. Next move will be to replace the steel stands off with the original aluminum standoffs and reinstall the heavy hub, fly the plane and then replace the heavy hub based on the flight. Currently removed 1 1/2 pounds. Don't believe I have many more flight left this season.
ADEFE735-4356-4A34-9A8A-6A479F90B656.jpg
flights this year.
 
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