SIB0516 8” Solid Stallone Brass Nautical Sextant with Micrometer Drum

8” Solid Brass Nautical STALLONE-INDIA Sextant with
Micrometer Drum: This is the premium quality solid brass
nautical sextant with micrometer drum. The 8-inch (20 cm)
radius sextant reproduction is our largest and finest 8-inch
sextant. It has six filters, a scale magnifier, and micrometer
drum readout. 11 3/8 inches (28.9 cm) tall, 10 ½ inches (26.7
cm) wide, and is 4 7/8 inches (12.4 cm) deep. The sextant
features a worm gear drive that can be overridden for large
angular movements. A micrometer drum mechanism is used
to precisely change and read the azimuth angle. Squeezing
the mechanism disengages the gearing for smooth, large
angle moves The 8-inch sextant have six filters mounted on
heavy swing-arm mounts. The telescope produces a bright
clear image, and can be extended to focus and collapsed for
storage. The index mirror has three inset adjustments to align
the optical path. The mirrors are aligned at the factory and
checked prior to shipping When the sextant is set to zero
degrees, the image through both optical paths as viewed
through the telescope align to produce a single
image. Moving the index arm causes the image to split in
half. When viewing two objects, such as the horizon and a
celestial body, the index arm is adjusted until the two are
superimposed. The micrometer drum reads out the angle
between the two objects. The micrometer rack is cut directly
onto the limb of the sextant. The sextant’s handle is made of
hardwood with a brass plaque. The sextant is fully functional,
but has not been calibrated and is not intended for navigation.
Size: 200 mm (Radius)
Weight: 2.200 kg.
28X28X10
CENTIMETER
PACKAGING IN SINGEL PCS, WOODEDN SHISHAM BOX
INNER SIDE VELVET CLOTH