MIL-HDBK-1027/4A
2.2.7.1
Hydraulic Support and Pump Rooms. Floor drains subject to oil
spills must drain to an oil separator. Provide flexible couplings between
pumps and piping systems for vibration and sound control.
Simulator hydraulic equipment is usually provided by the simulator
manufacturer. Where six DOF motion systems are used, the hydraulic pumps
normally include a manufacturer provided chilled water system to remove the
heat from the fluid. Visual equipment within the high bay may also require
accommodations for manufacturer provided chilled water supply and return
lines for cooling. Any trainer device requiring chilled water cooling should
include a chiller with its own procurement.
Hydraulic Repair Shop. Provide for on-site collection of hydraulic
fluid.
Pneumatic piping for standard shop air may be required by the user.
2.2.7.2
Trenches. Training equipment utilizing hydraulic power normally
requires routing the hydraulic lines in trenches covered by metal plates.
Plumbing, pneumatic hoses, ducts, sprinkler piping, and cabling are also
routed in trenches. Trenches typically route utilities between the computer
room and trainer and between the mechanical room and trainer. Verify the
layout of the trenches between equipment with the facility designer during
the design. Kerfed plate covers are required for drainage into trench from
slab level. Trench covers must support the wheel load of a loaded forklift.
The device manufacturer normally supplies all piping, clamps, brackets, and
supports required for hydraulics.
Hydraulic systems can be pressurized to 2000 pounds per square inch
(psi) and a leak in the line can be extremely hazardous. The heavier the
load on the motion system and the more responsive a motion system has to be,
then the higher the pressure used in the system. Assemble hydraulic fluid
piping systems with O-ring sealed straight threaded connections. Tapered
National Pipe Thread (NPT) joints are not permissible.
Slope hydraulic piping trenches away from computer rooms and to a
sump to collect waste fluid for proper disposal. A dead level floor area is
required where the trainer supports for six DOF and domes meet the floor at
the same elevation. Comply with requirements of MIL-HDBK-1005/9, Industrial
and Oily Wastewater Control, and MIL-HDBK-1005/8, Domestic Wastewater
Control. Treat fluid as a pollutant in accordance with federal, state, and
local regulations.
Federal agencies are required to properly manage the use
and disposal of all toxic substances. Conform to the installation's spill
prevention control plan. Pneumatic hoses may be routed in the trench by the
manufacturer for flight crew filtered breathing air. Carefully coordinate
trench layouts with device manufacturer to avoid conflicts with catwalk
platform bases and other obstructions to trench access.
Device Area or Trainee Room. Provide condensate drains for the
cockpit air conditioners. Incorporate a lip to prevent contamination of the
drain with hydraulic fluid.
2.2.7.3
Compressed Air. Comply with the requirements of NAVFAC DM-3.5,
Compressed Air and Vacuum Systems.
Hydraulic Repair Shop.
Pneumatic piping for standard shop may be
required.
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