Kitplains magazine  finally published an article on the TTC.
Not as good as I hoped but not quite as bad as
I suspected. The water radiator is not cross flow!
It is counter cross flow. There is huge difference.

Kelly Vogel worked on the TTC very rarely.
Courtney Boyce did most of the composite work.
I think Kelly Vogel is a close friend of the author as he was mentioned several times.
There was another A&P mechanic that did a lot of the mechanical work
and when he left I did most of it. At least two of the photos were provided
by me with no credit :-)

They did discuss the importance of overall aircraft power to weight
ratio but no mention of the advantage of the rotary
in regard  engine  power to weight ratio. The aircraft high power to weight
ratio was made possible only because of the Wankel

Samuel Pierpont Langley chose a  Stephen M. Balzerr rotary radial piston engine for high power to
weight ratio while the Wright brothers designed and built their own high power to weight ratio
engine. First piston engine with an aluminum crank case. This TTC record illustrates
the high power to weight ratio advantage of the Wankel. The record will not be bettered
except with another Wankel or this one running at a higher boost with a better prop.

When the blow of valve opens the ground does not shake or
the engine does not miss. You can see the water vapor or fuel vapor
exit the blow off valve on the top front of the engine in this video.
The throttle was set to wide open so the only limit to the manifold
pressure was the manifold blow off valve.

If there was a miss it was not due to the blow off valve.

Dan never learned to read the extensive data recording provided by the Motec system.
The manifold pressure is constant and would show if the engine actually
missed. The waste gate never did anything, manually controlled or other wise.
It was all done with the blow off valve.

The Motec data is shown here for the record flight.

Surprisingly,Tracy Crook was mentioned but he has done nothing
with the rotary in the last five years.

No mention of youtube TTC  or my web site. Perhaps that is a Kitplanes policy.

Paul Lamar

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