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Forum: Tech Log

18th Jan 2011, 17:31

Replies: 91

First Aircraft to Use a Symmetrical Airfoil

Views: 41,845

Posted By BobM2

Jane-DoH

As I recall, the 2-stage 60 series Merlin was introduced in the Mk 9 Spitfire. This was necessary in 1941 to counter the threat of the new FW-190 which completely outperformed the Mk-5 Spit with its...

Forum: Tech Log

8th Jan 2011, 03:33

Replies: 91

First Aircraft to Use a Symmetrical Airfoil

Views: 41,845

Posted By BobM2

Jane-DoH

Actually the AAC had a few turbocharged aircraft in the '20s but...the early turbos were expensive & not too reliable. Funds were short in the '30s & manufacturing & materials available were not up...

Forum: Tech Log

8th Jan 2011, 00:40

Replies: 91

First Aircraft to Use a Symmetrical Airfoil

Views: 41,845

Posted By BobM2

MECHTA

You've got that a little backward Mechta. The turbocharger output is controlled by a WASTEGATE, a variable valve in the exhaust pipe ahead of the turbo that directs exhaust gas either through the...

Forum: Tech Log

7th Jan 2011, 22:40

Replies: 91

First Aircraft to Use a Symmetrical Airfoil

Views: 41,845

Posted By BobM2

You are correct ChristiaanJ. Supercharger is...

You are correct ChristiaanJ. Supercharger is mechanically driven, turbocharger is exaust driven. Turbocharger is more efficient since it does not take power from the crankshaft.

Forum: Tech Log

7th Jan 2011, 21:08

Replies: 91

First Aircraft to Use a Symmetrical Airfoil

Views: 41,845

Posted By BobM2

You are absolutely right barit & don't forget the...

You are absolutely right barit & don't forget the Bell XP-39 that had excellent performance with a turbo, but so equipped had no room left for guns & ammo. The AAC were so enamored of turbos that...

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