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Old 07-10-2012, 03:24 AM
Seadog Seadog is offline
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Join Date: Jun 2011
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Quote:
Originally Posted by Crumpp View Post
When was it approved for sustained climbs?????
It was approved for 5mins at 12lb boost/3000rpm in 1940, and it was up to the pilots on how and when to use the power; including sustained climbs:



and:

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