The “SUN COMPASS”, a rather complex military clock

Greg Crockett

Registered User
Apr 13, 2001
464
0
0
These images are of an early 1960's vintage U.S.Army "Sun Compass". The Technicle Manuel is dated 1961. It's sort of like a sextant with a built in clock in the center. It was made for use when in North or Southern latitudes for navigation. It's useful when a regular compass will not function, given that the actual magnetic poles are not fixed but wander. The wandering magnetic poles are more of a problem the closer you get to the North or South Pole and also in other areas of the globe. It is equipped with star charts for navigation at night as well as other equipment. I have not checked the clock to see how accurate it is.
http://www.imagestation.com/picture/sraid65/pf94fae6b1940e3a22f794549afc7a002/fbf0f85b.jpg
The unit w/cover off.
http://www.imagestation.com/picture/sraid65/p57b769dd9c2251f418c52eb01f54ec91/fbf0f858.jpg
A picture out of the TM

http://www.imagestation.com/picture/sraid65/p6e8cf07eadafcd41982b1abe6b29b6f3/fbf0f857.jpg
"Dang, how do you use this thing? We can't be in Lansing, Michigan!"

http://www.imagestation.com/picture/sraid65/p2c390cfcf293c21ebfe263c362aa948d/fbf0f752.jpg

Unit revolved to the other side to show North Latitude face. Clock is wound with the knob to the right.

Has anyone actually used anything like this?


Best regards,
Greg
 

Greg Crockett

Registered User
Apr 13, 2001
464
0
0
These images are of an early 1960's vintage U.S.Army "Sun Compass". The Technicle Manuel is dated 1961. It's sort of like a sextant with a built in clock in the center. It was made for use when in North or Southern latitudes for navigation. It's useful when a regular compass will not function, given that the actual magnetic poles are not fixed but wander. The wandering magnetic poles are more of a problem the closer you get to the North or South Pole and also in other areas of the globe. It is equipped with star charts for navigation at night as well as other equipment. I have not checked the clock to see how accurate it is.
https://mb.nawcc.org/
The unit w/cover off.
https://mb.nawcc.org/
A picture out of the TM

https://mb.nawcc.org/
"Dang, how do you use this thing? We can't be in Lansing, Michigan!"

https://mb.nawcc.org/

Unit revolved to the other side to show North Latitude face. Clock is wound with the knob to the right.

Has anyone actually used anything like this?


Best regards,
Greg
 

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