Description
Technical Manual Change 2 (TM 9-1240-262-34) for M105, M105C, M105D, and M105F Articulated Telescopes December 1966 FSN 1240-764-1667
This Technical Manual Change 2 for TM 9-1240-262-34 updates the field-maintenance publication for the M105, M105C, M105D, and M105F articulated telescopes, FSN 1240-764-1667, and is dated December 1966.
The physical publication is the Change 2 notice only. It applies to the original TM 9-1240-262-34 dated January 31, 1963, and is not the complete base manual.
Historical Significance
The M105 telescope family served as secondary direct-fire sighting equipment on several U.S. armored vehicles. Its models supported 90mm and 105mm gun tanks as well as the specialized 165mm gun used by a combat engineer vehicle.
Change 2 records the second formal update to the January 1963 field-maintenance manual. Such notices kept technical guidance aligned with the supported equipment as configurations and maintenance information changed.
M105-Series Fire-Control Applications
The M105 was intended for the secondary direct-fire system of the M48-series 90 mm gun tank. The M105C and M105D served the corresponding system on the M60 and M60A1 105 mm gun tanks.
The M105F supported direct fire for the 165 mm gun in the T118E1 Combat Engineer Vehicle, later standardized as the M728. This gave the telescope family a role in both tank gunnery and armored-engineer equipment.
The series used an 8-power optical system with a 7.5-degree field of view and two selectable ballistic reticles calibrated for range in meters. Its articulated design allowed the objective to follow gun elevation while limiting movement at the eyepiece.
What This Manual Covers
Change 2 supplies the December 1966 revisions to the field-maintenance guidance in TM 9-1240-262-34. Its model line covers the M105, M105C, M105D, and M105F articulated telescopes.
The notice updates an existing maintenance publication. It is not a crew-level operator's guide, a parts-only manual, or a stand-alone replacement for the complete January 1963 base manual.
Key Features
- Publication: Technical Manual Change 2 for TM 9-1240-262-34
- Change date: December 1966
- Base manual date: January 31, 1963
- Models covered:
- M105: FSN 1240-764-1667
- M105C: FSN 1240-676-2178
- M105D: FSN 1240-980-1745
- M105F: FSN 1240-764-1668
- Manual scope: Field-maintenance update
- Equipment role: Secondary direct-fire telescope equipment
- Physical publication: Change 2 notice, not the complete base manual
Why This Manual Matters
Change notices are part of a technical manual's official publication record. This notice documents the second update to TM 9-1240-262-34 and helps complete the publication history of the M105-series field-maintenance manual.
It is useful for studying articulated telescope support across M48-series tanks, M60-series tanks, and the M728 Combat Engineer Vehicle.
About This Manual
This is Change 2 to Department of the Army Technical Manual TM 9-1240-262-34, dated December 1966, for the M105, M105C, M105D, and M105F Articulated Telescopes, FSN 1240-764-1667. The original base manual was issued on January 31, 1963.
The offered item is the official Change 2 update notice and does not constitute the complete base manual.
Ideal For
This technical manual change notice is a strong fit for:
- U.S. military technical-manual collectors
- Owners of the January 31, 1963 TM 9-1240-262-34 base manual
- M48-series, M60, M60A1, and M728 researchers
- Military optical-instrument and fire-control historians
- Museum and armored-vehicle reference collections
Approx length 8", Approx width 10", Approx height .1", Approx weight .1lbs.
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