I Downloaded from https://www.everyspec.com MIL-STD-81OD . 19 July 1983 TABLE.513’.3~11 ~ G levels for Procedure’.II - Ouer~ test. . . . t: . . Test Level . i ~’.- Direction of Vehicle Acceleration ., Forward J (See’’figure513.3-1) Vehicle .“ - Acceleration . . * ‘Category A ,, -, Lateral $ in gvsll : Fore Aft “ up Down . Left Right Aircraft ‘2/;31 ,., . .2.(3 : 1.OA 3.0AL 4.5A 1.5A-’ 2.OA 2:)A Helicopters 2.0 2.0 7.0 3.0 ,,4.0 ‘4,0: .- ., -. Manned Aerospace 6;0 to 12.o ,. , .,, ,. ;’.Vehicles ~ .. ...=... 1.OA 0.33A’:1.5A 0.5A 0.66A 0“.”66A .. . . . . . .- . .. . kirlgl ,.. ., Sponson’ 5:OA 5.OA 6.OA Aircraft Mounted 325A’ “3.75A 3.75A Stores - . ..
,-:,.“, Fuselage Mounted 3.5A 4.OA’ ‘4.5A 2:7A ,1.5A 1.5A -.. . ---- . -.. . ‘Ground-Launched &/, , l’:lA 0.33A 1:1A’ ,.,At.’ lj, A , Missiles . ; 1.1A’ JI 1/ 1/.. ‘.II . - ,. 1/ Levels in this”columnshould’be used when fo’rwa:d:acceleha~ ion is unknown. When :the forward acceleration of the vehicle is known, that value“-shall” be used”for A. .2/ For carrier-baaed”aircraft, the minimum.:valtieto be used”for ~ is 4; !representing a basic condition associated with cat,apultlaunches. ., ~1 For attack and fighteF aircpaft ,’add pitch, yaW, and’-k?il‘“icceierationias.’,. applicable.
~/ For’helicopters,’forward acceleration is unrelated to ‘accelerationin other directioi”s’.Test levels are based’on current and near’future helicopter ‘deSign requirements. ~,., .5/ When forward acceleration i’snot known,‘“thehigh’value of the acceleration range should be used. ,:. .,- fil A is derived:from the thrust’curve:data”for ‘maximum‘firingtemperature: ~ l/ Where is the maximum maneuver acceleration. - . ~~ In some‘cases, the maximum maneuver ac$eleratioriand the maxi’mum-longitudirial“; ‘.’“ac6el’e”ratfon will”’: occur at the same time. When this occurs, the’test’iteh>should ~be”tested with the appropriate factiois‘tiii’ng “theotiientitiori.
and‘levelS.-forthe maximum (vectorial) acceleration. ,.. . ,., . ,., .,,...,, ... MSTHOD 513.3 19 July .1983’ 513.3-6 I