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Chapter 8 - Auxiliary Power Units
801. In designs incorporating the use of an auxiliary power unit, the
designer shall submit manufacturer's data relating to design, power output, and
control, together with any recommended operating limitations, and special
installation instructions or requirements.
802. Mountings or stowages for auxiliary power units shall restrain the units
from breaking loose under the acceleration loadings quoted in Section 506.
803. The installation or stowage of auxiliary power units shall provide
adequate protection against corrosion, and against contamination of all working
fluids supplied to the unit.
804. All services essential for the safe operation of the auxiliary power
unit shall be independent of, or capable of isolation from, those services
provided for main engine operation.
805. Auxiliary power units which are permanently installed shall be contained
in a Designated Fire Zone. (See Chapter 10).
806. Installation of auxiliary power units shall be arranged to provide ready
access for starting, controlling and operating the units under emergency or
damage conditions within the vehicle's design environmental envelope.
807. Designated Fire Zones containing an engine of an auxiliary power unit
shall be provided with forced ventilation arranged such that the engine may not
be started until ventilation has been initiated.
808. Exhaust systems of auxiliary power units will be required to comply with
the requirements of Section 711.
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