5-4-1
Flight in Icing Conditions - General
The following section presents performance information related to the operation in or into
known icing conditions. This information was derived analytically from actual wind tunnel tests
with natural ice. The following cases are considered:
−
45 minutes holding in moderate icing conditions with fully operational pneumatic de-ice
boots and substantial ice accretion on unprotected surfaces
−
20 minutes holding in moderate icing conditions with ice accretion on the total airframe
due to inoperative pneumatic de-ice boots.
Besides these aerodynamic degradations, performance losses to the aircraft’s propulsion
system have been considered (increased bleed air extraction, inertial separator open, less ram
recovery, and ice-build up on unprotected parts of the propeller blades).
Section 5 - Performance (EASA Approved)
Flight in Icing Conditions - General
Pilot's Operating Handbook
Report No: 02406
Issue date: Mar 06, 2020
Page 5-4-1-1
12-C-A15-60-0504-01A-030A-A
FOR
GENERAL
AND
FAMILIARIZATION
PURPOSES
ONLY