Pilot's Operating Handbook
Section 4
Normal procedures
EASA Approved
Edition 1 - January 15, 2018
Rev. 0
Page 4.5.5
Flight into known icing conditions 5/5
► Continuing
Ice accumulation effects
When ice has accumulated on the unprotected surfaces of the airplane,aerodynamic
characteristics may be changed.
Particularly stall airspeeds may increase by up to :
FLAPS UP 20 KIAS
FLAPS TO 15 KIAS
FLAPS LDG 10 KIAS
In case of severe or prolonged icing, an ice concretion due to refreezing around the
heated stall warning may appear. Above-recommended airspeeds take into account,
on one side, the stall airspeed increase due to profile shape deterioration and, on the
other side, the weight increase of the iced-up airplane, taking as a basis the airplane
maximum weight when not iced-up.
Rate of climb values with ice accumulation on the unprotected surfaces are to be
decreased by 10 %.
Cruise airspeedsmay be decreased by 10 %, if cruise power is not changed, or more,
if cruise power setting should be decreased due to the additional inertial separator
limitations (ITT limitation).
Because of the higher landing airspeed, landing distances will be increased. In the
landing configuration, using 90 KIAS approach airspeed increases landing distance
by 20 % - refer to chapter 5.14 Landing distances.
End of procedure.
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