MIL-C-46221B
3.6.2 Cartridge performance.
3.6.2.1 Misfires. The cartridge shall not fail to fire.
3.6.2.2 Ballistics. The cartridge, when tested in an acceptable M4A1 Catapult, shall propel a 325 pound
mass horizontally and shall comply with the requirements of table I.
TABLE I. Ballistic requirements.
Temperature (·F)
Velocity, min
Max. peak acceleration
Max. rate of Change
Ignition delay
(ft/s)
load cell (g)
of acceleration (g/s)
time, max (ms)
· 60 to · 70
33.0
10.0
75
150
65 to 75
38.0
10.2
103
150
160 to 170
41.0
13.4
120
150
3.6.2.3 Initiation. The catapult shall be fired by a source delivering an output equal to that of an M3A2
Initiator at the end of 10 feet of aircraft hose, MS28741-4, at 70· ± 5·F.
3.7 Workmanship. Cartridges shall be free of cracks, splits, or other defects which might prevent proper
mating with connecting parts or proper functioning of the device.
3.7.1 Metal defects. All components shall be free from cracks, splits, cold shuts, inclusions, porosity,
or any similar defect.
3.7.2 Burr. No part shall have a burr which might interfere with the assembly or function of the item or
which might be injurious to personnel handling the item.
3.7.3 Foreign matter. No part or assembly shall contain chips, dirt, grease, rust, corrosion, or other
foreign matter.
4. QUALITY ASSURANCE PROVISIONS
4.1 Responsibility for inspection. Unless otherwise specified in the contract or purchase order, the
contractor is responsible for the performance of all inspection requirements (examinations and tests) as
specified herein. Except as otherwise specified in the contract or purchase order, the contractor may use his
own or any other facilities suitable for the performance of the inspection requirements specified herein, unless
disapproved by the Government. The Government reserves the right to perform any of the inspections set
forth in this specification where such inspections are deemed necessary to ensure supplies and services
conform to prescribed requirements (see 6.2).
4.1.1 Responsibility for compliance. All items shall meet all requirements of sections 3 and 5. The
inspection set forth in this specification shall become a part of the contractor's overall inspection system or
quality program. The absence of any inspection requirements in the specification shall not relieve the
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