1、- - MIL-C-25213 (1) 17 7777706 0173515 9 = .- - - 37- o3 MIL-C-25213 (USAF) AMENDMEPUT 1 i MAY 1956 MILITARY SPECDICATION CRADU, BOMB TRANSPORT AND LOADING, TYPE MB-1 This amendment forms a part of Military Specification MIL-(2-25213 (USAF) dated 7 Febmiary 1956. Page 2, WratWPh3.3.3, Ilne 3: “60 se
2、conds. I Delete “10 seconds“ and substitute Page 2, paragraph 3.3.4, line 5: “60 seconds . Delete “10 seconds“ and substitute . Page 3, paragraph 4.2.1: As a fourth sub-paragraph under 4.2.1, add: “4.2.1.4 PROOF LQAD TEST.- The cradle shall be set up for test substantially as shown in figure 1. A do
3、wnward load of 4,275 pounds, and a longitudinal load of 1,300 pounds, shall be applied independently, each for at least 60 seconds. No pemnent defomtion of any member shall be allowed. “ Page 3, paragraph 4.2.2: Delete and substitute: “4.2.2 SAMPLING PIAN AND TESTS.- One cradle from each 500 produce
4、d, or fraction thereof, shall be selected at random and subjected to the following tests:“ Page 4, paragraph 4.2.2.1: Delete and substitute: “4.2.2.1 SAMPLING TESTS “4.2.2.1.1 WIMATE LAD TEST.- With the cradle assembled in accordance with drawing 5kT45246, the test setup shall be substantially as sh
5、own in figure 1. A downward force of 6,400 pounds, an upward force of 3,700 pounds, a sideward force of 1,700 pounds, and a longitudinal force of 1,975 pounds shall be applied independently to the cradle through the center of gravity. at least 60 seconds. Deformtion shall be allowed, but the tensile
6、 strength of any member or weld shall not be exceeded; however, perniznent deformtion shall not begin at ess than two-thirds of the above loads. Forces shall be applied in the order listed for - /- THIS DOCUMENT CONTAINS PAGES. cz.j. * L-1 , . .L . . . - . :. . . .:._ ,.%.;,.- , . . -. - . ?&W. -:*
7、. : . : .: ?. . .- . - . Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-25213 (USAI?) AME“EEC1 “4.2.2.1.2 SALT SPRAY TEST.- The salt spray test shall be in accordance with MIL-E-5272. The cradle shall show no signs of corrosion after this test
8、.“ Page 4, paragraph 4.4.3: Delete and substitute: “4. h. 3 PREPROIXICTION TESTS. - The preproduction tests shall consist of all tests described herein with the exception of $he proof load test.“ Page 4, paragraph 4.11.3.1: Delete. Page 6, paragraph 4.4.3.2: Delete. GPO 825179 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
