MIL-STD-1289D
on the applicable aircraft and pylon - shall be installed with the aircraft in its normal ground attitude. The aircraft shall be fully serviced and the gear strut extension within the allowable limits for the aircraft. For bombs, dispensers, and launcher-type stores, simulated stores may be used if the actual inert test items are not available. These stores shall have all exterior dimensions and configurations equivalent to the actual store and shall be dummy fuzed and equipped with arming wires if applicable. The total weight and general weight distribution of the test store shall also be equivalent to the actual store.
5.3 Installation test methods.
5.3.1 Store loading.
The stores shall be prepared, handled, and loaded in accordance with established loading procedures. Only tools and equipment generally available to aircraft and armament personnel should be required for the loading; however, it is not intended to preclude the use of special tools or equipment, which are to be an integral part of the store associated equipment. The most practical means of loading the store (such as bomb hoists and powered and non-powered weapons loaders) will be used. The store should be capable of being positioned beneath the suspension equipment on a cradle, skid, munitions transporter, munitions trailer, or dolly without the necessity of jacking or lifting the aircraft or resorting to loading pits or other special provisions.
5.3.2 Loading procedure test.
Determination of the most efficient procedure for loading the aircraft shall be made by testing the complete loading procedure. The test shall begin with the store(s) on AWSE outside the circular area, which encompasses the extremities of the aircraft. The store(s) shall be moved into position, hoisted, and loaded properly on the appropriate release equipment. The loading procedure test shall include proper alignment and simulated operational checks including systems capable of adjustable firing angles. Data shall be recorded to define the most efficient procedure and the time required for each major action in loading the stores in the required configurations. The loading procedure tests shall be conducted during the original fit test and during subsequent loadings, if required. Where installation conversion (aircraft reconfiguration) is required due to peculiarities of the store being installed, conversion time will be recorded. In computing installation conversion time, reconfigurations shall be performed by a single crew without special tools or equipment other than items, which will be available to operational crews performing similar functions.
5.3.3 Clearance tests.
The store installation shall be visually inspected and verified to the clearance requirements of
4.3. Satisfactory operation of all external movable equipment (such as flaps, slats, speed brakes, or armament systems capable of adjustable firing angles) shall be demonstrated to their limits. In cases of marginal ground clearances, further investigation and study shall be given to the effect of emergencies or unnatural condition such as deflated struts and flat tires, on runway clearances of suspended stores. Whenever marginal clearance between the external store and the aircraft landing gear system (including the envelope described by parts of the landing gear during retraction/extension) is suspected, the aircraft will be placed on jacks and a landing gear retraction/extension test performed to determine actual clearances.
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