MIL·STD·1822A(USAF) APPENDIX A
functions, with war reserve equivalent test units, as designed. The exact number of aircraft tested is determined using the hyper-geometric mathematical probability model in accordance with the methodology described in NSWOI 99-1.
A.3.5 Air vehicle (cruise missile) to warhead testing.
Functionality and compatibility between the W80-1 and its delivery vehicle is based on tests of the interface. The criteria for validation of the Aircraft/Missile/Warhead are based on the W80-1- to-Air Launched Cruise Missile (ALCM) Interface Control Drawing and the Sandia W80-1
Compatibility Certification (CC) Drawing. These tests are performed with the required number of missile configurations (i.e., 20 missile PREARM test in the case of the B-52) with Sandia
supplied W80-1 CTUs and warhead PREARM Load Simulators. Tests are also conducted to certify: (1) combined missile and gravity bomb configurations, and (2) interoperability between
cruise missiles and gravity weapon configurations. Currently the B-52H aircraft is the only nuclear certified platform that can operate both cruise missiles and gravity bombs.
A.3.6 Compatibility test units.
Compatibility test units (CTUs) are Sandia Aircraft Compatibility Department engineering tools that represent electrical and functional characteristics of a war reserve (WR) special weapon. The CTUs and associated test devices come in a variety of sizes, shapes and quality of WR electrical components.
A.3.6.1 CTU·1.
The CTU-1 is a classified unit that is electrically and mechanically equal to an actual WR weapon. The CTU-1 is designed to have the same weight, size, shape, moments of inertia, center of gravity, and paint scheme. The CTU-1 does not have a physics package. This item has been replaced with a mass mockup. The CTU-1 contains classified items (not all visible) and is certified to fly on its associated platforms. The CTU-1 contains WR major components that have been accepted within the Department of Energy quality process. The CTU-1 has identical electrical loads as a WR weapon and will function with AMAC signals accordingly. CTU-1 hazards are documented in Joint Nuclear Weapons Publications System (JNWPS) 20-11 section 2-5. The CTU-1 offers the highest quality of WR facsimiles and is the ideal tool when conducting system integration tests using production aircraft and weapon equipment.
A.3.6.2 CTU·2.
The CTU-2 is similar to the CTU-1 except some of the WR Military Characteristics (MCs) are electrically simulated (for example, the Use Control devices are electrically simulated). The CTU-2 is certified for flight on its associated aircraft. The CTU-2 is an unclassified shape that can be used in special situations where classified items are prohibited (i.e., NATO flights). The CTU-2 does not contain explosives or hazards. The CTU-2 has a high degree of electrical accuracy but is slightly less than that of a CTU-1.
A.3.6.3 CTU·3.
The CTU-3 has the same quality of WR electrical major components as the CTU-1 but is not flight certified (cylinder shape). The CTU-3 is classified. This unit is primarily used at aircraft manufactures' facilities during the development of new AMAC systems.
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