Pilot's Operating Handbook
Section 5
Performance
Edition 0 - March 05, 2019
Rev. 2
Page 5.4.1
5.4
- Cabin pressurization envelope
●
NOTE
●
The cabin pressurization envelope below characterizes the cabin altitude that
could be sustained by the fuselage at different flight levels. The curve shows
the minimum cabin altitude as a function of flight level, corresponding to the
maximum differential pressure. The maximum differential pressure is limited by
the pressurization system protection function.
●
Figure 5.4.1 - Cabin pressurization envelope
260
240
220
180
140
160
200
280
300
1000
2000
3000
4000
5000
6000
7000
8000
Cabin
altitude
(feet)
Pressurization useful
envelope
9350 ft cabin
Δ
P= 6.2 PSI max
9000
310
Flight
level
(FL)
PIM - DO NOT USE FOR FLIGHT OPERATIONS