Section II. DESCRIPTION AND APPLICATION

CHAPTER 2 HARDWARE AND AIRCRAFT REQUIREMENTS

TM-1-1500-250-23 Aircraft Tie-down and Mooring Procedures Manual
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TM 1-1500-250-23 1--2 Change 4 Section II. DESCRIPTION AND APPLICATION 1-5. Necessity of TM. This General TM became necessary be- cause of the apparent ineffectiveness of past tie- down and mooring procedures. In the spring of 1989 Army aircraft at Ft. Hood and Ft. Polk experienced extensive and costly damage as a result of very high winds. In each instance, severe storm warnings had been issued and current procedures were followed within available time and capabilities. Despite these measures serious damage to aircraft and losses to the Army in combat readiness and resources oc- curred. 1-6. Army Policy. The following Department of the Army policy has been established: when noti- fied of the potential for severe windstorms in excess of 50 knots all Army aviation units will take the ac- tions prescribed in this General TM. a. If unable to evacuate to a safe haven, air- craft will be placed in hangars in the following prior- ity; OH-58D/C/A, AH-64A, UH-60A, AH-1 all series, UH-IV/H, and CH-47D/C. The priority for special op- erations aircraft is: MH/AH-6, MH-60, MH-47, and OH-6. For helicopter with more than two main rotor blades, if feasible, the blades will be removed or folded to maximize available hangar space. b. All aircraft remaining outside will be tied- down and moored in accordance with appropriate procedures described in this General TM. When feasible, units will face the aircraft into the fore- casted wind before mooring. c. Aviation units will also take additional protection measures to include use of all available shelters and/or artificial barriers such as revet- ments, berms, igloos, trucks, buses, tanks, ar- mored carriers, etc. d. Army aircraft located in areas that expe- rience severe windstorms will tie down blades after each flight and moor aircraft after the last flight of the day regardless of the weather forecast. If air- craft are not to be flown they shall be left tied down and moored. e. Every installation with Army aviation units will have secure mooring points for all as- signed aircraft. Where points are not sufficient, installation engineers will take immediate action to install required mooring points. f. All units with assigned aircraft will en- sure tie-down/mooring hardware, particular to each aircraft, is in good repair. g. The horizontal stabilator of the UH-60 and AH-64 aircraft are to be set in the neutral posi- tion (zero degrees). NOTE If unable to conform to the configurations shown, contact AMCOM Engineering (DSN 897-4905) or comm. 256-313- 4905 for guidance.

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