I got my tripod motor mounts back from the welder today
and they came out 3 pounds a piece.
They are made mostly from 3/4 dia. 0.049 wall 4130 with some
7/8 dia 0.049 wall.

So far my firewall forward
weight is;

bare engine       190 
Tracy psru        35  
Leon bell housing 15  
Starter            7
stock turbo       25
stock exhaust man 10
Alternator         9
main motor mounts  6 
--------------------------
Current  total    297 pounds.

No intake manifold, inter cooler or rear mount weights yet.
This also does not include the radiators or coolants
and oil. Not bad for a 250 HP turbo aircraft engine.

Paul Lamar
 
The AirCraft Rotary Engine NewsLetter.              Powered by Linux.

http://home.earthlink.net/~rotaryeng/            http://www.linux.org