Hurant Karibian wrote:

The turbo compound was designed to cause no back pressure in the exhaust system, using velocity instead so there was no waste gate. They produced 450 HP,
combined at takeoff power, or 150 HP each.

BTW Hurant you are much better pilot than I. I average 500 hours per exhaust valve
on my O-470.
 
Paul Lamar
 
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