Optional Equipment
Emergency Floats
CSP–520N–1
MD 520N (500N) ROTORCRAFT FLIGHT MANUAL
TM
Revision 1
9–16
FAA Approved
PART II
LIMITATIONS
Night flight over water beyond autorotational capability to ground is prohib"
ited, unless 369D292032 Night Landing Kit is installed.
Flight with floats inflated, or at time of inflation, is limited to the conditions of
altitude and temperature presented on the EMERGENCY FLOATS INFLATED
V
NE
PLACARD.
Operations with the emergency floats inflated is limited to flight to a servicing
facility for repacking and recharging the system.
Environmental operating conditions:
Operating temperature range
Operational temperature range for over water−flight is:
−25
°
F (−31.7
°
C) minimum
+117
°
F (+47
°
C) maximum
Altitude limits − floats inflated
For water and ground landings, change of altitude is limited to 6500 feet
below the altitude at inflation or to 6500 feet below the maximum alti"
tude to which the inflated floats are subsequently flown. This assumes
the normal variation in ambient temperature associated with altitude
changes.
NOTE
:
If the allowable altitude change noted above is exceeded, the minimum
operational float pressure (2.0 psig) for water and ground landings may not be
available.
Air speed limits:
With floats stowed
With floats stowed, airspeed limitations are the same as the basic heli"
copter.
With floats inflated
Airspeed with the floats inflated is limited (Ref. Figure 9−6).
For float inflation
Maximum speed for float inflation is 81 knots IAS at less than 6,000
feet altitude, 77 knots IAS at 6,000 feet altitude and above.
