M-6 sight changes
RESTRICTED
215.
A gear shift increases the limits of the disc
speed from 10l to 593.
16. The telescope has
finer cross hairs,
1/4 mil.
The optics are increased in power from
1.5 to 2.2.
17. The ratio between the drift and turn knobs is
7.25 to l.
18. The automatic release points are changed from
knife switch type to
contact type.
19. The cannon plug is increased to sixteen poles
(see cannon plug diagram).
20. A precession
motor is
integral part of the
stabilizer.
(No longer used).
21. The end play of turn
shaft is adjustable
under spring
tension.
22. The center of focus of the optics is: 3/16"
to the rear, 5/16 to the right, and I lower from
the sight stem
23. THE SIGHT AND STABILIZER OF DIFFERENT SERIAL
NUMBERS ARE INTERCHANGEABLE WITH ADAPTATION.
24. The
dropping angle is increased,
It is now
25 mils to 1800 mils with 50 mils trail.
a range of 1700 mils with 150 mils trail.
25. There are no vents
In the sight.
26. lhe sight power cable enters the unction box
nearer the bottom.
27. The ground speed drum has a clock-like spring
and an idler gear. (Prism
is eliminated
the M9
series).
28. The telescope coincidence scale has only a
single mark, at
It is possible to
set zero trail in the cross
trail mechanism.
30. The "on"
and
*off" position of the switches
is reversed.
31. An auxiliary
search knob has been added to
obtain the additional
sighting angle.
32. The inside parts of the rate end are no longer
plated:
this prevents peeling.
33. The caging knob is no longer adjustable for
the vertical.
34. A spring
has been
added to
the
auxiliary
search knob to assure positive disengagement on
м6м.
35. The ground speed drum
reading has been
in-
creased to 480 knots on the M6M.
36. Safety guards are provided
fcr the stabilizer
servo switches.
37. A shield has
added to the
order to protect. the cross trial
models,
bell crank
assembly.
84