Description
Technical Manual (TM 9-1005-240-35P) for .30cal XM1 Twin Machine Gun Helicopter Mounting January 1962
Add a specialized piece of early U.S. Army helicopter armament documentation to your collection with this Technical Manual TM 9-1005-240-35P for the Twin Helicopter Mounting, Cal. .30 Machine Gun XM1. Dated January 1962, this manual covers the repair parts and special tools side of one of the Army’s early helicopter machine gun mounting systems.
Historical Significance
The XM1 helicopter armament system belongs to the early period of U.S. Army armed-helicopter development. Before the UH-1 gunship and later dedicated attack helicopters became iconic, the Army was already experimenting with ways to arm light observation helicopters for reconnaissance, escort, and direct-fire support.
Redstone Arsenal historical material notes that the OH-13 Sioux and OH-23 Raven could be armed with twin M37C .30 caliber machine guns using the XM1 armament subsystem. The same source notes that the XM76 sighting system was used for sighting the guns.
That makes this manual an excellent reference for collectors interested in the origins of helicopter gunship development. It documents the parts and special-tools side of the equipment that helped bridge the gap between observation helicopters and purpose-built armed helicopter platforms.
The XM1 Twin Machine Gun Helicopter Mounting
The XM1 system was associated with early light helicopter armament. Helicopter armament references describe the XM1 as using two M37C .30-06 machine guns mounted on the landing skids of the OH-13 or OH-23 helicopter. The guns were fixed forward but flexible in elevation, with ammunition stored externally.
This places the XM1 in an important early Army aviation category:
- pre-UH-1 standardized helicopter armament
- OH-13 Sioux and OH-23 Raven weapons systems
- M37C .30 caliber aircraft machine gun equipment
- early Vietnam War aviation development
- Cold War helicopter armament experimentation
For collectors, the appeal is the early date and the specific aviation subject. This manual predates the better-known UH-1 rocket pods, minigun subsystems, and Cobra armament systems that later became symbols of Vietnam War helicopter warfare.
What This Manual Covers
As a 35P technical manual, TM 9-1005-240-35P focuses on field and depot maintenance repair parts and special tools. This makes it especially useful for collectors, researchers, and museums interested in the component-level support documentation behind early helicopter armament systems.
This manual is especially relevant for:
- XM1 helicopter armament subsystem documentation
- .30 caliber twin helicopter machine gun mounting research
- M37C aircraft machine gun support equipment
- OH-13 Sioux armament displays
- OH-23 Raven armament displays
- early Vietnam War helicopter aviation collections
- U.S. Army aviation ordnance technical manual libraries
- collectors completing a TM 9-1005-240 helicopter armament manual set
Because 35P manuals focus on parts and special tools, they help preserve the supply and maintenance side of the system. That makes this publication a useful companion to operator, organizational, and field maintenance manuals for the XM1/XM1E1 equipment family.
Key Features
- Technical Manual TM 9-1005-240-35P
- Covers Twin Helicopter Mounting, Cal. .30 Machine Gun XM1
- Dated January 1962
- Department of the Army technical manual
- Field and Depot Maintenance Repair Parts and Special Tools List
- Connected to early U.S. Army helicopter armament development
- Associated with OH-13 Sioux and OH-23 Raven armament history
- Related to twin M37C .30 caliber machine gun installations
- Strong Cold War / early Vietnam War aviation collector subject
- Valuable reference for aviation ordnance, helicopter weapon system, and technical manual collections
Why This Manual Matters
The XM1 represents an early step in the Army’s move toward armed helicopters. It came from a period when helicopters were evolving from observation and utility platforms into armed reconnaissance and fire-support aircraft.
This manual preserves the parts-support side of that story. It is not a general aircraft guide or a broad small-arms manual. It is a focused technical reference for the components and tools tied to an early helicopter machine gun mounting system.
For collectors, it pairs well with OH-13 Sioux displays, OH-23 Raven references, M37C aircraft machine gun documentation, early helicopter gunship research, Vietnam War aviation collections, and U.S. Army aviation ordnance manuals.
About This Manual
This listing is for Technical Manual TM 9-1005-240-35P, covering the .30 Cal XM1 Twin Machine Gun Helicopter Mounting, dated January 1962.
This listing is for the manual only unless otherwise stated. No helicopter, machine gun, armament subsystem, mount, sight, ammunition, tools, repair parts, storage case, or additional accessories are included unless specifically shown or noted.
Ideal For
This manual is a strong fit for:
- Vietnam War helicopter aviation collectors
- OH-13 Sioux and OH-23 Raven reference collections
- early helicopter gunship development displays
- U.S. Army aviation ordnance manual collections
- .30 caliber aircraft machine gun equipment displays
- Cold War technical manual collections
- museum and archival reference libraries
- collectors completing a helicopter armament subsystem manual set
Approx length 10", Approx width 8", Approx height .2", Approx weight 1lbs.
Pictures are stock images of our inventory. Unless otherwise noted, you will not be receiving the exact item shown in the pictures. The pictures are representative of the item's general condition. The item you receive might be slightly better, or worse, condition than was shown in the pictures.
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