MIL-DTL-18793B
4.2 Contractor tests The contractor tests shall be performed by the supplier, after award of contract and prior to
production, at a location acceptable to the Government. One or more sample antennas shall be necessary to
determine that the design of the antennas as proposed by the contractor will meet the requirements of this
specification. Contractor tests shall be conducted in accordance with the approved preproduction test procedure.
Contractors not having laboratory facilities to satisfactorily conduct all tests shall either obtain the services of a
commercial testing laboratory or receive written approval from the acquiring activity to omit that portion of the tests
(see 6.6).
4.3 Preproduction test.
4.3.1 Sampling instructions. Preproduction test samples consist of three antennas representative of the production
antennas to be supplied under the contract. Preproduction tests shall be conducted at laboratory designated by the
acquiring activity. Samples shall be plainly identified by securely attached durable tags marked with the information
specified below, and forwarded to the laboratory designated in the letter of authorization from the acquiring activity.
The contractor shall submit with the preproduction models including manufacturing drawings in accordance with
applicable requirements of MIL-D-18300.
Sample for preproduction test
Antenna AS-333/AP
Name of manufacturer
Submitted by (name) (date) for qualifications in accordance with requirements of MIL-DTL-18793 under
authorization (reference authorizing letter.)
4.3.2 Scope of tests. Preproduction tests shall include any tests deemed necessary to determine that the
antennas meet all the requirements of this specification and the contract, and shall consist of at least the following
tests conducted in the order stated:
First:
The service condition tests.
Second:
The resistance test.
Third:
The insulation radiation test.
Fourth:
The VSWR Test.
4.3.3 Model acceptance. Acceptance of the preproduction model shall be by the acquiring activity upon
satisfactory completion of all tests. No additional antennas shall be delivered prior to the approval of the
preproduction models. Prefabrication of any antennas prior to the approval of the preproduction antennas is at the
contractor's own risk. The approved preproduction antennas will be returned to the contractor for his use in the
fabrication and testing of the antennas to be submitted for acceptance under the contract. The preproduction
antennas shall not be considered as equipment under the contract; however, they may be reworked by the
contractor and submitted for acceptance as production equipment.
4.4 Inspection tests. Inspection tests shall be conducted on all antennas submitted for acceptance under contract
and on all antennas furnished by the contractor with aircraft or other equipment under contract. Inspection tests shall
be conducted at the manufacturer's plant, unless otherwise specified in the contract. Contractors not having
laboratory testing facilities shall engage the services of a commercial testing laboratory acceptable to the acquiring
activity. The contractor shall furnish test reports, in duplicate, showing quantitative results for all tests required by this
specification and signed by an authorized representative of the contractor or laboratory as applicable. Acceptance or
approval of material during course of manufacture shall in no case be construed as a guaranty of the acceptance of
the finished product.
4.4.1 Scope of tests. Inspection tests shall consist of the following tests:
a. Individual tests: Each antenna shall be given the following tests:
The resistance test.
The VSWR test.
The visual inspection test.
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