15th April 2007, 17:52
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Super Moderator
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Join Date: Dec 2004
Location: Exeter, England
Posts: 6,175
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Fw 190 modifications
Does anyone know what «Änderungsstufe 137» entailed on a Fw 190 F-8?
The context is a strength return from a unit where some machines are recorded as off strength for this reason.
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