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Hi Everyone,

This is my forst posting so please bare with me if I get something wrong.
This is just a simple question regarding the 20b and aluminum housings
available from www.racingbeat.com.

1 - Will these "fit" the 20b engine
2 - Do these require machining or are they ready to be used as purchased 3 -
The baseline for my aircraft is the Lycoming IO-360-A1A which I believe is
certified at 328 LBs. Does it make "sense" to spend the several thousands of
dollars to shave about 50+ LBs off of the 20b (assuming these housings can
be used) Any arguements against using these items reliability wise

The aircraft is an Osprey GP-4.

Thanks a bunch. Can't wait to see the replys.

Eric Schnettler
Syracuse, NY

1. Three out of the four housings can be replaced by RB aluminum housings.
2. no machining is required. 3. I would use a 250 HP RX8 p-port 2 rotor cast
iron engine rather than a 3 rotor
 20B. The firewall forward weight would be about the same as an IO-360.

Paul Lamar


I've had the same question on my mind:

"Any arguements against using these items reliability
wise"

Don

We don't have any track record with these alloy end housings. The RX8 P-port
is a minor variation of p-port engines that have been used for 30 years.

Paul Lamar