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It doesn't mention +12 boost, it mentions that a unspecific higher boost than +6 1/4 can be used for take-off by operating the boost-control cut-out.
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Let's see this unspecific boost!
The June 1940 Operating Instructions make no mention whatsoever for a higher boost at take off.
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Read AP1509B again, properly it says:
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It is being read properly. That is backed up by the logs.
Notice the engine is modified during Service Inspection:
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engines being built before the issue of this document
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LMAO!!
It specifics which method of compliance will be used in production. It does not say a single thing about engines produced in the past!!
04-17-2012, 11:57 AM
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