H5606

I had my wife pick up some balloons while grocery shopping at Target - looks like they're either too big or too small from this batch; reset piston con rods and fabricated thrust washer per Pond Skipper's recommendation for pusher from .010" G-10 and sanded down crankcase and thrust plate a skosh for clearance. I cleaned up both engines from quarter-century congealed castor as well - heat gun worked well to unlock engines. Last pic shows two white, 6x3 Grish Toronado props - one tractor - one pusher. Nice but perhaps negligible thing about this setup is both engines turn same direction but when oriented in push/pull config with tractor and pusher props - they'll turn opposite each other and thus cancel torque. A trusted source tells me to go to higher pitch in rear since pusher is moving already "thrusted" air, so may try using tractors on both engines with higher pitch in rear at the expense of thrust cancellation - showing cut down Cox competition 5x3 and MA ?5.25x4?. Since I'm using reedies, direction of rotation should be no issue.

I'd like to post video however, so far I've failed to upload to site; I'd prefer not to link elsewhere....