Downloaded from https://www.everyspec.com MIL-STD-81OC 3.5.3.2 Free flight functional test. For stores that are deployed by separation from the aircraft (free flight) such as bombs and missiles, a free flight functional test shall be conducted in addition to the captive flight tests of 3.5.3.1. The equipment shall perform according to the equipment specification operating requirements (see General Requirements, 3.2) during the functional testing. 3.5.2, 3.5.2.1, and 3.5.3, table 515.2-11, and figure S15.2-3 shall be used to determine the test procedures, levels and frequency spectra for the free flight test except as noted below.
In this case, factor (N/3T) shall be set equal to one and isoMER or TER cluster carriage factor shall be used. The value of q shall be the maximum value attainable during free flight. The duration of this functional test shall equal the maximum free flight time expected at maximum q, but not less than 30 seconds. In the event thatall free flight functional checks are made during the captive functional test and the captive functional test levels are larger than or equal to those derived here (3.5.3.2),no free flight functional test is required. 3.5.4 References a. Dreher, J. F.; Lakin, E. D.; Tone, E.
A.; l’VibracousticEnvironment and Test Criteria for Aircraft Stores During Captive Flight,” Shock and Vibration Bulletin No. 39, Supplement (pp 15-40) NRL, Washington, D.C., April 1969. b. Dreher, J. F., ,, Effects of VibratiOn and Acoustical Noise on Aircraft~ Stores Compatibility, ,, p=oc. Aircraft Compatibility SymP. , Vol. 6, PP 245- 272, Eglin AFB, Florida, November 1969. c. Burkhard, A. H., !!AcOustic Testing tO Simulate the Flight VibratiOn Environment of Aircraft Stores,” AFFDL-TR-73-11O,February 1974. d. Burkhard, A., !,Captive Flight AcOustic Test criteria fOr Aircraft Stores,” Shock and Vibration Bulletin No. 43 part 3 (PP 113-126), NRL, Wash, D.C., January 1973.
\ MSTHOD 515.2 S15.2-6