Item Description
Original Item. Only One Available. This is an exceptional quality "HUSUN" sextant made by “Henry Hughes & Son, Ltd., London.” as engraved on the large arc. This all brass navigational instrument has a classic "Husun" “3 circle” frame in a black powder-coated finish. The traditional inlaid silver scale is marked from -5 to 150 degrees in single increments. Sextants like these were bought for the U.S. Navy before and during World War II.
The box measures 10½ x 11 x 5¾”. All latches and the handle work as intended without any damage. The label on the interior lid features the HUSUN company logo and reads underneath:
THE SEXTANT NO. 29910
NAMED HENRY HUGHES & SON LTD.
OF 6” RADIUS & READING TO 10”
HAS BEEN EXAMINED & FOUND SATISFACTORY
THE FOLLOWING CORRECTIONS SHOULD BE APPLIED
THE DEFINITION IS SATISFACTORY
DATE 30/7/42 SIGNED D.H. PERKINS
PROUDS PTY. LTD.
SYDNEY
The sextant is in fair shape and retains all of its parts, the only piece missing being the key to lock the case. This is a great example of a rare piece of U.S. Navy equipment, ready for further research and display.
Sextants were in heavy use in all branches of the US armed forces during World War II. In the case of the US Air Forces, having a means to quickly gauge the
altitude of a given object, was an essential part of conducting an anti-aircraft defense and coordinating airplanes from the ground.
A sextant is an instrument used to measure the angle between any two visible objects. Its primary use is to determine the angle between a celestial object and the horizon which is known as the altitude. Making this measurement is known as sighting the object, shooting the object, or taking a sight. The angle, and the time when it was measured, can be used to calculate a position line on a nautical or aeronautical chart. A common use of the sextant is to sight the sun at noon to find one's latitude. Since the sextant can be used to measure the angle between any two objects, it can be held horizontally to measure the angle between any two landmarks which will allow for calculation of a position on a chart. A sextant can also be used to measure the Lunar distance between the moon and another celestial object (e.g., star, planet) in order to determine Greenwich time.
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