The high speed ignition miss is gone after we installed an 18 volt battery
   for the complete Motec system including the ignition system.

   The prop tips are going transonic (8000 engine RPM and 2600 prop RPM)
   at only 72% throttle opening and 60 inches of HG manifold pressure.
   The intake manifold blow off valve is probably set to around 80 inches of Hg.

   More throttle opening and more boost will just fight the stone wall
   drag on the prop tips. The thrust will not increase appreciably.

   Here is the data out of the Motec 800 EFI system.
   The logged data chart is attached.

   The manual waste gate was wide open and there is still a 1.25 inch diameter  vent hole
   in the exhaust manifold. We are still only using some of the extraordinary  potential
   of this engine. I would say less than half of the potential energy in the exhaust.

   IMHO the prop blade area is too small. We need wider blades or a
   4 bladed prop.  However it is climbing so fast we may still get the record
   with this prop.

   The airplane was gone out of sight in less than a minute. It got up to
   5500 feet but we did not have a camera in the cockpit this time
   monitoring the altimeter..

   The RV8 chase plane with Kelly Vogel flying  lost it. It was out of sight
   before he got off the ground. He was delayed by about a minute
    taking off by the tower.

   We are now up to six flights.

   Paul Lamar
I can't remember how long the blades are on your prop I thought they were 82". Unfortunately the problem will only get worse with altitude cause the engine will maintain horse power and the prop will rev even higher at in the thin air. Hope you guys get a new prop so you can use all your power.

Jacob Sturgis

84 inches.

I agree! Back in WW II they greatly increased the turbo charged P47 climb rate when they went to wider
blades. The P47 would get up to 40,000 feet.

Paul Lamar

   The Rotary Engine free News Letter. Powered by Linux. If you want off
   the list PLEASE let me know and I will remove  you.  ACRE NL web
   site. http://www.rotaryeng.net You Tube http://tinyurl.com/beqqxas
   Copyright 1998-2017 All world wide rights reserved.