Learjet 35 - Page 367

Leerjet 35/36 Developed for Training Purposes 4J-7
February 1998
Oxygen System
Oxygen Duration Chart
Aircraft with 6600214 Series Crew Masks (Fully Charged)
Bold-faced numbers indicate 100% oxygen.
Light-faced numbers indicate diluter demand.
Prior to over water flights, plan flights so that enough oxygen will be
available for all occupants, in the event of pressurization failure.
For cabin altitudes of 10,000 ft and above, oxygen duration includes
cabin altitude ascent time from 8,000 ft to final stabilized cabin alti-
tude.
The oxygen duration for the 7,000-ft and 8,000-ft cabin altitude pro-
vides information for flight planning when supplemental oxygen is
required.
To calculate oxygen duration for a less than fully charged system,
the following formula may be used: Duration = Duration from chart x
(system pressure ÷ 1,850).
Cabin
Altitude
Available Time in Minutes
2 Crew 2 Crew
2 Pass
2 Crew
4 Pass
2 Crew
6 Pass
2 Crew
8 Pass
2 Crew
9 Pass
2 Crew
11 Pass
40,000 267
251
84
79
51
47
36
34
29
27
26
24
22
21
35,000 195
182
76
71
48
45
35
33
28
26
26
24
22
21
30,000 219
135
79
64
49
42
36
32
29
26
26
23
22
20
25,000 252
105
83
56
50
39
37
30
29
25
26
23
22
20
20,000 228
84
81
50
51
37
37
29
30
25
27
23
24
20
15,000 192
67
77
45
50
34
37
28
31
24
28
23
24
20
10,000 163
54
Passenger Oxygen Not Required
(See Note Below)
8,000 153
50
7,000 148
48