Downloaded from https://www.everyspec.com MIL-STD-81OD ihlly 198,3 TABLE 515.3-11. ted acous~ assmbled ex~v-carried aircraft stor=. Functional test L#,~,~,~ = 20 Log (ql) + 11 Log (X) + 7. Log’ (1 - cos~ ) + G+Hdi3 foti,3/ = 600 Log (X/R) + C Endurance test ., L# ,~ ,~ ,~ = 20 Log (q2/ql) + 2’.5Log (N/3T) .,+ functional level ‘dE f$/,~ = 600 Log (X/R) + C ., Definitions ql . captive flight dynamic pressure (lbs/ft2) 1800 %? = 1200 psf or maximum captive f l i gh t dynamic pressure (Whiohewr is lower) (lbs/ft2) N = maximum number of anticipated eervice,missions (minimum N =-3) ti/ . local radius of etore in inches x .
distance from nose of,atore along axia of store in inches T = test time in “hours (minimum.T = 1 hour unlese othe~ise” specified) c . -200 location.?within one D o f either aft end of “storeor aftward of re-entrant angle z 400 all other locatione L1 = maximum atore ,diameterin inches B . local nose ccne angle at X equals Tan6 = (R/X) ‘(referencefigme ‘515.3-4) G = 72 tilesa measured data showe otherwise E = 96.unless measured data shows otherwise F = 84 unless measured data shows otherwise H = o for, O.85 M > 0.95 H = -3 dB for all other values’of M M = Mach Number Representative.parametric..valuesto be used for captive flight when specific parameters are not available:
,,, Local Noee N Endur- Cone’Angle .q f. Nose f. Middle f. Aft Store Type ante DegreeS max Scotion Seotion Seotion Air-to-Air Missile 100 69 ~~ 16 OO 500 . 1000 500 Air-to-Ground Missile 12 1600 800 63o 63o Instrument Pod 50 : 69 18oo 500 1000 500 Reusable Dispenser 50 11 1200 63o 1000 400 Demolition Bomb 24 1200 500 1000 630 Flat Nose Store : 90 1200 400 630 315 . , . METHOD 515.3 19.July .1983 515.3-9