TM-9-6675-262-10
AIMING CIRCLE M2 W/E AND M2A2 W/E
TECHNICAL MANUAL; OPERATOR MANUAL
DECEMBER 2013
TM-9-6675-262-10 - Page 26 of 68
0004-6
DESCRIPTION/USE OF OPERATOR CONTROLS AND INDICATORS – (Continued)
WARNING
Do not look into the telescope while aimed directly at the sun unless the
filter is used. Serious eye damage can result. If damage occurs, seek
immediate medical attention.
1.
The optical filter (Figure 6, Item 1) is shown in in-use position and is used
to protect your eye from sun rays.
The optical filter is mounted over the
eyepiece end of the telescope when used for observations on the sun.
When not in use, it is stored on the filter post on the right side of the
telescope, above the serial number plate.
2.
The slotted bracket (Figure 6, Item 2) is used for mounting the M51
instrument light bracket light (Figure 6, Item 7).
The reticle is lighted
through the hole.
3.
The reticle (Figure 6, Item 3), as seen through the telescope, has
horizontal and vertical centerlines that are graduated to give azimuth and
elevation angles while the operator is looking through the elbow
telescope.
Each graduation is 5 mils and each scale reads 0 – 85 mils.
The Polaris 2 Reticle is installed in most Aiming Circles.
This includes
the reticle pattern described above as well as three concentric circles
used for aligning stars for the Polaris 2 method of astronomic
observations.
4.
Open sight (Figure 6, Item 4) allows fast telescope orientation.
The
reflector (Figure 6, Item 5) allows backsighting by artillery weapon’s fire
control instruments.
The reflector can be lighted at night with the M51
instrument light hand light.
The eyeshield (Figure 6, Item 6) blocks light
entering your eye from the side.
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