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Which compass on a Blenheim?

Chaps,
Just a quick query – does anyone know which compass goes in a Blenheim or Bolingbroke cockpit? I have a feeling its a P8 or P11, but I can’t find anything definitive at the moment. I have 6A/24 as the code but that doesn’t sound right.

cheers,
Andy

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By: Arabella-Cox - 2nd September 2008 at 20:03

P4 diameter approx. 7 1/4″, P6 (would have been the contemporaneous type) 5 3/8″.

In deciding on the P4, I took into account the apparent diameter of the Turn and Slip Indicator and compared it to the apparent diameter of the compass. The compass looks much bigger than the 4 3/8″ diameter of the T&S.

See what I mean?

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By: FiltonFlyer - 2nd September 2008 at 17:54

Thanks for that AM, I’m surprised it would a P4, but I trust your judgement! One more question – is there a difference in size between the P4 and the P8?

ta,
Andy

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By: Arabella-Cox - 2nd September 2008 at 09:34

All my Blenheim cockpit photographs seem to show a P4 compass, Stores Ref. 6A/227.

Regards

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