TM  1-1500-250-23 CHAPTER  4 MOORING PROCEDURES a. 4-1. General   Mooring. Aircraft Placement. Position the aircraft on the mooring pad as shown in figures 4-6 thru 4-12. Essentially, parallel to the centerline of the pad and located fore and aft per the dimension in the figure for that aircraft. b. Adjusters. Ensure that adjusters are fully ex- tended. c. Securing Aircraft, secure aircraft to the pad using the chains and adjusting device provided at each of the pad mooring points. The chains are to be attached to the aircraft as illustrated in that aircraft figure and are to be adjusted to remove slack in the chain. During installation manually make the chains as taut as possible prior to using adjuster. The  adjuster  has  a  limited  travel  capacity. d. Position Variance.  The position of the aircraft with respect to the pad and the pad dimension may vary up to 12 inches. Ensure chain links are inserted into the MBI chain adjuster as shown in figure 4-2. Incor- rect insertion may cause the MBI adjuster to fail and compromise the mooring system. NOTE All deviations from the nominal position de- grade the wind resistance of the mooring scheme. The tolerance suggested will de- grade the scheme by an acceptably small amount. e. Mooring  Hardware.  The  hardware  to  be  furnished with the mooring pad is defined in Table 2-1 and figures 4-1 thru 4-5. Use configuration 1 (fig. 4-1) and a l/2-inch an- chor shackle or configuration 2 (fig. 4-2) to meet require- ments which do not allow the mooring pad hardware shown in figure 4-3 to be permanently installed. A ball peen ham- mer  is  required  to  install  the  link,  chain  detachable.  Cut  the chain link to the correct length (See figures 4-4 and 4-5). 4-2. Specific  Aircraft  Mooring  Procedures. a. AH-64  Helicopter  Mooring  Procedures. (1) Position the aircraft on the mooring pad with the longitudinal centerline of the aircraft directly above and parallel to the longitude line of the pad as shown in figure  4-6.  Position  the  forward  mooring  rings  located on main landing gear struts, 6-feet aft of the forward mooring points on the pad as shown in figure 4-6 of this general  TM. NOTE It will be necessary to open the fairings- which shield the forward mooring rings, before  final  aircraft  positioning.  A  Frear- son screwdriver will be required. (2)  Connect  two  chain  assemblies  from  the  air- craft mooring rings to the forward mooring pad points. (3) Connect two chain assemblies from the cen- ter mooring pad points to the mooring ring located on the lower surface of the tailboom at F.S. 450. (4)  Connect  two  chain  assemblies  from  the  rear mooring pad points to the mooring ring located on the lower surface of the tailboom at F.S. 450. (5) Tighten the MB-1 chain adjusters to remove the slack from all mooring chains. No tools are re- quired. b.  CH-47  Helicopter  Mooring  Procedures. (1) Position the aircraft on the mooring pad with longitudinal centerline of the aircraft directly above and parallel to the longitudinal axis of the pad as shown in figure 4-7. Position the aircraft forward landing gear mooring rings 8-feet-9 inches aft of the forward moor- ing points on the pad as shown in figure 4-7 of this gen- eral TM. Configurations  at  some  installations  may cause chafing of the forward landing gear or the rear cargo ramp. To prevent damage to the aircraft, mask the crossing chains in the chafing areas with duct tape. (2) Connect two crossing chain assemblies from the forward landing gear mooring rings diagonally to the forward mooring pad points. (3) Connect two side chain assemblies from the forward landing gear mooring rings to the forward mooring pad points. Change 3    4-1