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|  MIL-S-85419 (AS)
3.6.15.3 Humidity. The starter/APU shall operate satisfactorily
and suffer no detrimental effects from operation in and exposure
to relative humidity conditions from O to 100 percent including
conditions where moisture has condensed on the unit.
3.6.15.4 Salt Spray. The starter/APU shall operate
satisfactorily and suffer no detrimental effects from operation
in and exposure to an atmosphere of salt laden moisture.
3.6.15.5 Sand and Dust. The starter/APU shall operate
satisfactorily and suffer no detrimental effects from limited
operation in sand and dust laden air.
3.6.15.6 Fungus. The starter/APU shall suffer no detrimental
effects from exposure to fungus growth as may be encountered in
tropical climates.
3.6.15.7 Attitude.
3.6.15.7.1 Operational Attitude. The starter/APU shall meet all
performance requirements herein when operating with the units
centerline tilted from 0 to 13.5 nose up combined with rotation
from 5 clockwise to 5 counterclockwise from its normal
These attitudes apply as the unit is viewed from the
position.
anti-drive end.
3.6.15.7.2 Overrunning Attitude. The starter/APU shall show no
detrimental effects from continuous overrunning in a 0-10 nose
up as well as intermittent overrunning in attitudes from 90 nose
up to 90 nose down; and 60 seconds under negative one "g"
acceleration load.
3.6.15.8 Vibration.
3.6.15.8.1 Operational Vibration. The starter/APU shall be free
of destructive vibration at steady state speeds throughout the
operating envelope of the unit.
3.6.15.8.2 Overrunning Vibration. The starter/APU shall be
designed to withstand, without damage the vibration environment
of Figure 10 regardless of applied direction.
3.6.15.8.3 Remotely Mounted Electrical Controls Vibration. The
remotely mounted electrical controls shall be designed to
withstand, without damage, the vibration environment of Figure 11
regardless of applied direction.
3.6.15.9 Shock. The starter/APU including all controls and
accessories shall be designed to withstand impact shocks in
opposite directions along each of three mutually perpendicular
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