For Doug:

Though I saw a pic of the port shape once upon a surf - these appear to
be square Pports:
   http://cp_www.tripod.com/rotary/images/pg03_08b.jpg

Cheers
Cary

Cary,
Wide square OR rectangular ports are good - the hard part is keeping the
apex seals from disappearing into them. Putting a bridge in there is
complex.
George (down under)


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