MIL-DTL-38449D
f. Spike susceptibility 1/
g. Radiated susceptibility (14 kHz to 10 gHz) 1/
h. Radiated susceptibility, induction field.
1/ Spike susceptibility and radiated susceptibility may be omitted provided adequate
proof of more severe tests can be shown or adequate proof that the amplifier is not affected by
the tests.
4.5 Flight test. Ground or flight tests may be conducted by the qualifying activity to
demonstrate compatibility of the unit with the aircraft system it is being incorporated into and the
associated tanker or receiver aircraft as applicable. A minimum of 25 hookups shall be required
for any combination of aircraft or amplifiers. A malfunction of the test unit shall be considered a
failure.
4.5.1 Reliability. Satisfactory compliance with all tests specified herein and a Table citing
failure rate data calculations for all components of the amplifier, stating quantity, stress level
failure rate, and total parts failures resulting in an MTBF of 34,000 hours or greater (25,000
hours or greater for the intercom section of the classes 3 and 4 amplifiers) will demonstrate
satisfactory reliability. Failure rate data will be obtained as specified in 3.5.2.1.
5. PACKAGING
5.1 Packaging. For acquisition purposes, the packaging requirements shall be as specified in the
contract or order (see 6.2). When packaging of materiel is to be performed by DoD or in-house
contractor personnel, these personnel need to contact the responsible packaging activity to
ascertain packaging requirements. Packaging requirements are maintained by the Inventory
Control Point s packaging activities within the Military Service or Defense Agency, or within the
military service s system commands. Packaging data retrieval is available from the managing
Military Department s or Defense Agency s automated packaging files, CD-ROM products, or
by contacting the responsible packaging activity.
6. NOTES
(This section contains information of a general or explanatory nature that may be helpful,
but is not mandatory.)
6.1 Intended use. The signal and signal intercommunication amplifiers covered by this
specification will be used in receiver and tanker aircraft employing aerial refueling boom or
receptacle equipment and in the ground support equipment necessary for these applications. Care
should be taken to insure the use of the proper class of unit in a given installation.
6.1.1 Installation instructions (general). The following are general installation instructions:
a. Mounting interface
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