Hawker 850XP Pro Line 21 Airplane Flight Manual
Page 14
Sub-section - 5.05
GENERAL
FAA Approved
Original Issue: Feb 28, 2006
DEFINITIONS
Some of the terms which are used in several sections of this manual are defined in Section 1.
Those terms which are used mainly in the Performance Section are defined as follows.
Gross Performance
This represents the minimum performance which a fleet of airplanes can be expected to achieve
if satisfactorily maintained and when flown in accordance with the required techniques. Gross
performance data is provided in Sub-section 5.55.
Net Performance
The majority of the scheduled data is net performance. This is the gross performance diminished
by the amount considered necessary to allow for various contingencies which cannot be directly
accounted for operationally, such as the need to maneuver, unavoidable variations in piloting
technique, temporarily below average performance, etc.
It is unlikely that the net performance will not be achieved in operation provided that the airplane
is flown in accordance with the required techniques.
Altitudes
All field pressure or airplane altitudes throughout Section 5 of this Flight Manual are defined in
pressure feet unless specifically stated to the contrary.
Reference Humidity
The relationship between temperature and humidity which defines “reference humidity”
(to which the scheduled performance is related) is defined as follows:
Air Temperature
Unless otherwise qualified, this means the true temperature (
°
C) of the free air near to, but
un-influenced by, the airplane.
Airspeeds
See Sub-section 5.10
Paved Runway/Hard Runway
A surface such as concrete or tarmac.
NOTE: Throughout the manual reference to a hard runway means a paved surface unless
the reference is qualified with the term "unpaved".
Temperature
Relative Humidity
At and Below ISA
80%
Between ISA and ISA +28° C
Varies Linearly Between 80% and 34%
At and Above ISA +28° C
34%
For Training Purposes Only
