CHAPTER  1 INTRODUCTION TM  55-2320-272  -14-1 Section   I. 1-1.   Purpose   and   Scope This manual is for transportation officers and other personnel responsible for safe transport of the M939-, M939A1-, and M939A2-series, 5-ton, 6x6 trucks. In this manual, “the trucks” refers to all of the vehicles, while a specific series, or vehicle, will be identified by its model number. This manual provides transportability guidance for safe shipping and receiving of the trucks. It includes significant technical and physical characteristics of the ve- hicles as well as safety requirements for worldwide movement by various transport modes. 1-2.   Related   Publications Additional information on transport procedures can be found in: MTMCTEA Pamphlet 55-19, Tiedown Handbook for Rail Movements MTMCTEA Reference 92-55-20, Tiedown Hand- book for Truck Movements MTMCTEA Pamphlet 56-1, Surface Transporta- tion, Marine Terminal Lifting Guidance MTMCTEA Pamphlet 70-1, Transportability for Better Strategic Mobility FM 10-526, Airdrop of Supplies and Equipment, Rigging 5-ton trucks FM 55-65, Strategic Deployment by Surface Transportation TM 38-250/AFR 71-4, Preparation of Hazardous Materials for Military Air Shipment USAREUR Regulation 55-1, United States Army Motor Vehicle Operations on Public Roads USAREUR Regulation 55-8, Loading and Securing Military Wheeled and Tracked Vehicles on European Railcars AFP 76-2, Airlift Planning Factors AR 55-162, Permits for Oversize, Overweight, or Other Special Military Movernents on Public Highways in the United States AR 55-228, Transportation by Water of Explo- sives and Hazardous Cargo 46 CFR, Code of Federal Regulations, Title 46 49 CFR, Code of Federal Regulations, Title 49 1-3.   User   Comments Users of this manual are invited to send comments and recommend suggested improvements on DA Form 2028 (Recommended Changes to DA Publica- GENERAL tions and Blank Forms) or on a marked copy of a page or pages of the manual. Forward these sugges- tions directly to Director, Military Traffic Manage- ment Command Transportation Engineering Agency, ATTN: MTTE-TR, 720 Thimble Shoals Boulevard, Suite 130, Newport News, VA 23606- 2574. Address electronically transmitted messages to DIR MTMCTEA FORT EUSTIS VA //MTTE-TR/. This command will furnish a reply. 1-4.   Definitions The following definitions will be used throughout this  manual: a. CONUS.  Continental  United  States. b. OCONUS.  Outside the continental United States. c. Curb Weight (CW).  Weight of base vehicle including materials handling equipment (MHE), if applicable, with all kits, attachments, accessories, equipment, basic issue items (BII ), and all fuels, lubricants, coolants, and hydraulic fluids topped off. d. Gross Vehicle Weight (GVW).  Curb  weight plus payload and crew weight. e. Payload. Any load placed in or on the vehicle that increases the GVW above the curb weight. The trailer tongue load and crew weight are not consid- ered part of the payload for a 5-ton truck. f. Working Load Limit (WLL).  The  maximum load that can be applied to a chain or wire rope and maintain a safety factor of 5. g. W/W.   With   winch. h. WO/W.  Without  winch. i. CTIS. Central  tire  inflation  system. 1-5.   Warnings,   Cautions,   and   Notes Throughout this manual, warnings, cautions, and notes emphasize important or critical guidance. They are used for the following conditions: ***WARNING*** Instructions that must be followed to prevent serious injury to or death of personnel. **CAUTION** Instructions that must be followed to prevent damage to or destruction of equipment. *Note* An operating procedure or condition that must receive  special  attention. 1-1