I'm building a Hanger 9 that will fly with a 23.6 inch 4 blade varioprop.
I modified my engine just to make sure it had the power to spin it.
varioPROP for the varioprop. Its best, when ordering, to Contact Christian via email.
The engine is a zenoah G62, its been tuned and modified by Performance Unlimited. Its been converted to cdi, timing was changed from 9 degrees tdc to 15 degrees tdc to use all the effective stroke. Stroke was lengthened by 1 mm, bearings upgraded and spring starter shaft has been machined off.