Hi Guys
a friend of mine has found an instrument on his boat which was left by the previous owner in the fifties/sixties.He was a Commander Moncreith believed to be Navy/Fleet air arm ? the serial number is AM (Air Ministry?) on top with crown over then REF No.6A/0354 above the crown/AM mark is an independent L mark and also on the side is marked AFT. There are four outlet drives each with a square pin and the mechanism is like an expensive watch the opposite drives if turned rotate the opposite direction.[ATTACH]198100[/ATTACH]
If the pics don’t come up somebody might advise me
[ATTACH]198101[/ATTACH]
Any Info greatly appreciated and available to a good home
Cheers
Jon/Terry
By: tfctops - 29th July 2011 at 17:22
Hi Rocketeer
PM me mobile/email details and we will sort it out whats your Mk1 project I was thinking Swordfish with the navy connection anyway speak soon
Cheers
Jon
By: VACB - 29th July 2011 at 17:08
It’s a compass corrector. Set underneath the “P” series of compasses and adjusted by a key.
I believe air ministry aircraft compasses were used in RAF launches and post-war private boats too.
By: Rocketeer - 29th July 2011 at 17:07
It is off a compass and is called a compass bias block it is an early one and I would love it for my Mk1 project!!!It mounts to the bottom of a P4,8,6 etc compass and is used to correct for anomalies…it has little magnets in it.
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July 29, 2011 at 4:47 pm