Got a chance to fly today.
48 deg f. Calm winds. Actually a fairly nice day.
This is a new motor, a little over 3 gallons through it.
Fuel 83 octane, stihl hp ultra @ 40:1 (Fuel is left over from last october with stabilizer added)
Hatori pipe
RPM's taken at end of flight when motor nicely warm
19.5x11.5 APC. ...... 7000
20.5 x10 apc . ...... 6800
These rpm's are pretty close to the ign #'s.
Flights were 11 Minutes. Fuel consumption looked to be same. 11oz tank had just under 1/2 tank remaining.
Idle was good, transitions were good, started easy, i use elec starter. Didn't have any problems at all With the new plug.
Lookin like a winner to me. Look forward to seeing what others come up with.
One other thought. Without the ign drain i was avg 130mah/flight. Currently using 1100 life, would be able to goto a 700mah pak and be able to save close to another ounce if adv wt is correct.
6800 on the 20.5 X 10 is pretty close to what I am getting with the YS and I will be using the Hatori muffler as well.
What is the midrange torque like? How much throttle are you using in the verticals?