Quote:
Originally Posted by Big time
Which one offers the best aero benefits when partially and when fully closed?
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It might be the 'longitudinal' form which is best.Like Lockheed chose for the Pratt & Whitney engines of the SR-71,or hydro dams have for the turbine wheel jet nozzles.The Messerschmitt 262, Junkers Jumo 004 turbojets also used this 'bullet' valve in their tailpipe nozzle.
It's probably also why they're not used,do the the length available in a production vehicle.
I'm running this on the T-100.There's zero vena-contracta entry loss regardless of valve position,which cannot be said for any other type.