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| MIL-D-23222A(AS)
ENGINE FUEL FEED. - Tests shall be conducted on
3.10.14
the engine fuel feed system to determine compli-
ance with the recuirements of Spec MIL-F-17874.
ARMAMENT DEMONSTRATION
3.11
GENERAL. - Firing of guns, launching of rockets or
3.11.1
guided missiles, and/or dropping of stores shall
not cause either the helicopter structure or stores that are retained
to be damaged by blast of by debris such as links, casings, "pig-tail",
or diaphragms. The time required to rearm shall be within the time
specified in the detail specification or the applicable portions of
the following specifications: MIL-A-8591, MIL-I-8670, MIL-I-8671,
MIL-I-8672, MIL-I-8673, MIL-I-8675, and MIL-I-8677. Any tests or
demonstrations completed and properly witnessed by a test authority
(see 3.1.2) in accordance with, but prior to, the scheduled point
of demonstration, shall be reported in reports submitted in compliance
with 3.19.
ARMAMENT INSTALLATION. - All applicable armament
3.11.2
demonstrations specified herein shall be performed
unless reference can be made to an identical titillation which has
been satisfactorily demonstrated by the contractor on a previous
model. Also, any armament installation which represents a departure
from existing design, that is, which embodies major features not used
in at least one previous armament installation in a naval helicopter
shall be satisfactorily demonstrated in flight.
3.11.3
GUNS
ATTACK, PATROL AND TRAINER HELICOPTERS. - The
3.11.3.1
satisfactory operation of gun installations in-
cluding accessories and directly associated equipment, shall be
demonstrated. This demonstration shall include simulated operation,
rearming, boresighting, and maintenance on the ground, and actual
operation in the air. The ground demonstration shall further include
ground firing for dispersion characteristics. Satisfactory air
operation of the gun installation shall consist of firing two com-
plete loads of ammunition in bursts of not less than 100 rounds or
six seconds (whichever takes longer) from each gun, with all guns
firing simultaneously, with three seconds maximum internal between
bursts. In no case shall the burst exceed one normal load of ammuni-
tion per gun. Firing shall be performed under the following conditions.
(1) Altitude: The helicopter shall be flown through
the following altitude cycle prior to firing:
72
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