Hawker Beechcraft Hawker 800XP, Руководство по эксплуатации для пилотов

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Pilot’s Operating Manual
P/N 140-590032-0007
Revision A4: Sep, 2010
Page 1-21
Section V Sub-section 1
NORMAL HANDLING
DESCENT and HOLDING
DESCENT
Descent procedures are based on the requirement that cabin rate of descent should not exceed
approximately 300 feet per minute.
The following table shows the minimum time to descend:
Table 6 - Time Of Descent
Any descent technique which gives overall times close to these values may be used. If it is desired to
use a high rate of descent for part of the way down, this must be balanced by a lower rate of descent at
some other point to give a reasonable total time.
For fuel economy, it is best to use the lower rate of descent high up, and increase it at lower altitude.
For maximum range, the descent procedure used is 0.76 M
IND
down to 31,000 ft and 285 KIAS below,
decelerating to 250 KIAS by 10,000 ft. Adequate supply of air to the cabin is obtained with engines idling
and both MAIN AIR VALVES selected OPEN.
From altitudes above 37,000 ft the overall descent time, with power at idle, is too short and, unless some
delay lower down is anticipated, the rate of descent above 37,000 ft should be reduced to about 1,000
ft per minute by increasing power. The data in Section 4 - FLIGHT PLANNING DATA is based on this
technique.
The use of the rough air airspeed reduces rate of descent and increases sector fuel and time slightly.
Airbrakes are not normally used but may be extended to steepen the descent at any time.
Cruising Altitude Feet Minimum Time Of Descent To 1500 Feet
41,000 19 Minutes
39,000 17 Minutes
37,000 15 Minutes
35,000 13 Minutes
33,000 11 Minutes
31,000 9 Minutes
29,000 7 Minutes
27,000 4 Minutes