Paul,

Getting closer to making our own rotor housings so I finally had to get my
inner surface corrected to be an actual parallel trochoid surface. This
model has all the math correct including the corrections for angle of
oscillation on the apex seal. Feel free to share this info. Comes out, my
original model based on CMM data was very close.

Larry

 Larry Childs

Designit Prototype
5935 Labath Ave
Rohnert Park CA 94928
PH:  707-584-4000
Fax: 707-584-4070


That is great news  Larry. There are big bucks in rotor housing as
Mazda charges $800 bucks for new rotor housings.

Consider making simplified AL end housing as there is a market for light
weight single rotor engines in OZ, NZ and LSA aircraft in the US.

You don't need oil pumps as external dry sump units will work.
Same goes for side ports as P-port are the way to go for aircraft
use.

We also need Ford and Alison based gear boxes. You are in a good position
to supply all the parts needed to make rotary aircraft engines.

Hopefully the aviation economy will pick up after the election.

Here are some pictures taken a few years ago of Larry's NC shop and the Reno
unlimited racer Larry crews on.

Larry happend to have a spare Tracy gear box when Dave Leonard
sized his gear box at Reno. Somebody flew back to Ca and picked
it up. We had Dave Leonard back in the air in 5 or 6  hours.

Paul Lamar

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