A Rocket Catapults \(see 6.1\).

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MIL-DTL-82945B (OS)

all radiographs shall be inspected on-site by a designated Government representative. Acceptance of the

loaded rocket catapult lot shall be subject to approval of the radiographs by the designated Government

activity.

4.4.6.2 Hydrostatic pressure. Each component listed shall be subjected to the respective internal

hydrostatic pressure specified in table II for a minimum of 15 seconds without application of an external

load. Any leakage, permanent deformation outside drawing tolerances, or mechanical failure shall result

in rejection of that component. Each motor tube and launcher tube shall then be subjected to inspection of

4.4.6.3.

4.4.6.3 Penetrant inspection. Each motor tube, each launcher tube (prior to anodizing), and each unlock

piston (prior to dry film lubrication) shall be 100 percent penetrant inspected in accordance with ASTM E

1417, Type I, Method D, Sensitivity Level 3. Discontinuities exceeding one-half the maximum size

permitted by MIL-STD-1907, Grade A, Table I, are unacceptable.

4.4.6.4 Residual magnetism. Each rocket catapult assembly shall be passed 6 inches in front of an SAE

AS 17983 compass along the entire length of the catapult in accordance with figure 2. If the compass

indicator deflects more than five degrees in either direction the rocket catapult assembly shall be rejected.

4.4.6.5 Leak test. Each head assembly shall be subjected to a leak test. The MS33649-04 port shall be

pressurized with dry nitrogen to 3000 to 3500 psi and there shall be no greater than a 5 percent loss in

pressure within 15 seconds when measured at the 0.437 to 0.439 diameter outlet (ballistic tube interface).

5. PACKAGING

5.1 Packaging. For acquisition purposes, the packaging requirements will 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 CKU-10/A and CKU-11/A Rocket Catapults are intended to be used to propel an

aircraft ejection seat and its occupant safely out and away from a jet aircraft. Since these Rocket Catapults

were designed for use in military aircraft, there are no commercial applications.

6.2 Acquisition requirements. Acquisition documents should specify the following:

a. Title, number and date of this specification.