MIL-DTL-62177E
3.3.11 Blow-by flow. The blow-by flow at the full power setting shall not exceed
18 cubic feet per minute (ft3/min) [(0.51 cubic meters per minute(m3/min)] (see 4.6.2.1.8).
3.3.12 Manifold flame heater. The manifold flame heater shall ignite and sustain
burning within the manifold without interruption for at least 15 seconds (see 4.6.2.1.9).
3.3.13 Air pressure. The engine shall withstand an internal air pressure of
3 psi (20.7 kPa) for 3 minutes with a pressure drop of not more than 1.75 psi (12.1 kPa). The
engine shall also withstand an internal air pressure of 5 psi (34.5 kPa) with no indication of
faulty seals or joints (see 4.6.2.1.10).
3.3.14 Water submergence. The engine shall operate while submerged in water to a
depth of 60 in. (1.52 m) above the cooling fans. While submerged and after being stopped, the
engine shall restart (see 4.6.2.1.11).
3.3.14.1 Water contamination. After the engine is submerged in water as specified in
3.3.14, there shall be not more than 2% water contamination by volume in the lubricating oil
(see 4.6.2.1.11.1).
3.4 Interface requirements. Each engine shall accommodate the following inputs and
interfaces.
3.4.1 Accessories and equipment. Unless otherwise specified (see 6.2), all accessories
and equipment including wiring and electrical connections, shall be installed on the engine and
properly adjusted (see 4.5.1, 4.5.2 and 6.7).
3.4.2 Weight. The engine (including the generator/alternator) shall weigh no more than
5080 lb (2304 kg) (dry weight) (see 4.6.3.1).
3.4.3 Oil seals. Oil seals shall conform to class 3 of A-A-52524 (see 4.5.1).
3.4.4 Interchangeability of parts. Component assemblies and parts of the engines shall
be so constructed that any part, except those furnished in matched sets or for which a selection fit
is specified, may be installed, replaced, and adjusted without requiring modification (see 4.5.2).
3.4.5 Electrical and mechanical interfaces. The engine envelope, dimensions,
mountings, electrical and mechanical interfaces all shall conform to the applicable Drawings
below:
8725265
11684150
10912450
12314611
11682700
12314641
11684000
7
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