Jerry, have you
looked into getting your P-port insert rapid cast? If I remember correctly it
has a complex internal geometry.
http://www.protcast.com/foundry.htm
Alex
Madsen
PS While you are at
it how about some AL side housings ;)
From:
Rotary motors in aircraft
[mailto:flyrotary@lancaironline.net] On
Behalf Of Jerry Hey
Sent: Monday, March 14, 2005 6:42
PM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: peripheral
ports
On Monday, March 14, 2005, at 01:26
PM, Richard Sohn wrote:
----- Original Message
-----
From: Jerry Hey
To: Rotary motors in
aircraft
Sent: Monday, March 14, 2005 5:33
AM
Subject: [FlyRotary] Re:
peripheral ports
On Monday, March 14, 2005, at 08:02 AM, Paul
wrote:
Paul, all the companies you list sell housings with BIG
p - ports and massive overlap. They are designed to develop tremendous hp at
high rpm for racing. Of course they don't idle smoothly. These engines have
nothing to do with the smaller, conservatively timed p ports that we wish to
use as aircraft engines.
Jerry
Jerry,
what
are you calling consevatively timed p-ports?
Just
want to see were I stand with mine.
Richard
Sohn
N-2071U
Richard here is the timing on my p port. I.O.= 78º
BTDC I.C.= 75º ABDC
In the attached drawing the opening and closing
events are measured from the housing center line. My p port is on the left.
The Leman p port is on the right.
Jerry