Operation Manual

38
60
55
50
45
40
35
30
25
20
15
10
11
12
13
14
16
17
18
19
21
22
23
24
90
80
70
F
U
E
L
L
B
S
.
L
I
T
E
R
S
.
O
I
L
L
B
S
.
I
M
P
G
A
L
.
G
A
L
.
U
S
.
55
50
N
A
U
T
.
45
40
35
30
25
20
15
10
90
80
70
11
14
16
17
18
19
21
22
23
24
S
T
A
T
.
K
M
.
1:10
1:20
1:30
1:40
1:50
2:00
2:30
3:00
3:30
4:00
4:30
5:00
6:00
7:00
8:00
9:00
Maximum flying hours
Question
With a fuel
consumption rate of
220 gallons per hour
and a fuel supply of
550 gallons, what is the
maximum number of
flying hours?
Answer
Align “22” on the
scale to “
▲
”. The
answer “2:30” (two
hours and 30 minutes)
corresponds to “55” on
the scale.