Downloaded from https://www.everyspec.com MIL-STD-81OC c Equipment installed in helicop- ters I 514.2-111 514.2-3 d.1 Equipment installed in external stores carried on airplanes IIA 514.2-IV 514.2-4 d.2 Assembled external stores carried on airplanes 118 514.2-IV 514.2-4A d.3 Assembled externally carried IIC 514.2-IVA 514.2-4B. 4C, 4D, 4E, 4F stores for helicopters I e Equipment installed in ground V, VI or 514.2-V launched missiles VII as applicable 514.2-5 f Equipment installed in ground VIII yehicles 514.2-VI 514.2-6 g Equipment transported as cargo X, XI 514.2-VII 514.2-7 h Ground equipment, excluding _- category f.
(For transporta- tion see category g.) -- -- i Shipboard and amphibious equip- -- -meritor when a ship is the common -- carrier (see 4.6.13) 1 3.2 Applicable tests. For any given equipment category, all tests listed beside the selected procedure for the applicable equipment mounting config- uration in the tables shall be performed”unless other~ise specifie~. For- example, referring to table 514.2-V section A, for testing equipment category e when procedure,VI is selected, there are three parts with different test levels indicated by the test curves. Tests indicated by (X) in all three part. shall be performed to evaluate equipment with isolators. 3.3 Selection of test curves.
A curve shall be selected from the tables and figures or by making a detailed analysis of the expected vibration environment within the particular vehicle involved. A primary considera- tion is the equipment location with respect to predominant vibration sources such as high intensity noise of jet and rocket exhausts, aerodynamic excita- tion including atmospheric wind and turbulence, and unbalance of rotating METHOD 514.2 514.2:2 .,..-”