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					Originally Posted by John Vasco  Marc,
 That silhouette appears on several photos of early Bf 110s.  Fernando and I have never been able to work out why it was applied to the engine cowling of some machines.  It may have been some kind of in-flight distance indicator for formation flying.  Other than that, I haven't a clue.
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 John,
This is quite a fascinating hypothesis! Thanks for your insight.
Cheers
Marc