MIL-DTL-38195D
3.5.5.3 Measurement Procedure. The sound measurement procedures used shall conform to ANSI S1.13,
except that the microphone height shall be as specified in 3.5.5.1.
3.5.5.4 Pressure level. If the sound pressure level at any measurement location specified in 3.5.5.1 exceeds the
limits of 3.5.5.1 a, b or c, a caution sign, in accordance with (IAW) current industry practices (reference
MIL-HDBK-1473), shall be placed on each of the four vertical sides of the set stating:
"CAUTION - NOISE HAZARD
HEARING PROTECTION REQUIRED WITHIN
X
FEET"
The distance (X) to be placed on this sign shall be the maximum distance from the generator set at which the sound
pressure level does not exceed the limits of 3.5.5.1 a, b, or c.
3.6 Transportability. The set shall meet air transportability requirements (reference MIL-HDBK-1791) when the
set is loaded into the aircraft with longitudinal axis of the set parallel to the longitudinal axis of the aircraft (see 4.5.2
and 4.6.6).
3.7 Mobility. The set shall meet the general and Type II, Group C, mobility requirements of SAE AS8090
except that the cramping angle of the trailer shall be sufficient to obtain 17 ½ feet or less turning radius. The trailer
shall have four wheels with 6:00 by 9, 6-ply pneumatic tires (see 4.5.2 and 4.6.7).
3.8 Lubricating oils and fuels. Lubrication and fuels shall be as specified herein (see 4.3.2).
3.8.1 Oils. The engine lubricating oil shall conform to MIL-PRF-7808 or MIL-PRF-23699 (CAUTION - Do not
mix). The drive unit lubricating oil shall conform to MIL-PRF-2105, grade 80,
3.8.2 Fuels. The engine fuel shall conform to MIL-DTL-5624 and, under emergency conditions, ASTM D910.
3.9 Engine. Except as otherwise specified herein, the engine, including all systems, components, accessories
and auxiliaries shall conform to engine manufacturer's specification and this specification (reference MIL-P-8686,
Type IV).
3.9.1 Starting system. The set starting system shall be 24 volts DC negative ground. The turbine shall start
under all conditions as specified in 3.4.1.
3.9.1.1 Battery. The set batteries shall be of the nickel-cadmium type and conform to current industry standards
(reference MIL-B-81757/9).
3.9.1.1.1 Battery charger. The battery charging circuit shall maintain the set battery in a fully charged condition
and be fully compatible with the nickel-cadmium type battery (see 4.2; 4.4.1.2.10; and 4.5.1).
3.9.2 Engine safety devices. The engine shall have safety devices as specified herein.
3.9.2.1 Over-speed control. The over-speed safety device shall trip at 110 ± 2 percent of rated speed, to stop the
engine (see 4.2; 4.4.1.2.3; and 4.5.1).
3.9.2.2 Over-temperature control. The over-temperature control shall limit the turbine and nozzle box
temperature during starting and operating (see 4.2; 4.4.1.2.1; and 4.5.1). Over Temperature Control Device shall be
in accordance with (IAW) current industry standards.
3.9.2.3 Acceleration limiter. This device shall control the fuel rate to prevent compressor surge during starting,
acceleration, transient and steady state loading.
3.9.2.4 Low oil pressure. The low oil pressure device shall actuate to stop the engine when the lubricating oil
pressure drops to approximately 5 psig (see 4.2; 4.4.1.2.2; 4.5.1).
6
For Parts Inquires call Parts Hangar, Inc (727) 493-0744
© Copyright 2015 Integrated Publishing, Inc.
A Service Disabled Veteran Owned Small Business