Warning: I have totally stopped to use this chair now. It is not a very safe stand and may even fly away with stronger engines and can cause injuries. I will leave the videos up, but please don't do it that way yourself.
Test run of my newly acquired OS MAX 15 RC .. it works. Prop is 8x4" APC.
Old review of this engine for reference: http://sceptreflight.com/Model%20Engine%20Tests/OS%20Max%2015%20RC.html
(And yes, I confused loop scavenging and cross-flow scavenging. It uses cross flow with a baffled piston, of course.)
#nitromotors #rcplane