Seiko Rotary Slide Rule Manual - Page 15

gallons/hour

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3-2. Calculation of fuel consumption rate, fuel quantity required, and remaining cruising time rOnQ 0Q A. Calculation of fuel consumption rate (per hour) [Problem] Time to fly Fuel consumption Fuel consumption rate 300 minutes (5 hours) 175 gallons [Solution] (1) Bring 17.5 on the bezel ruler and 30 (5:00) on the dial ruler in line. (2) The bezel ruler scale value corresponding to the time index (60 MPH) on the dial ruler scale is 35. [Answer] 35 gallons/hour B. Calculation of fuel quantity required [Problem] Time to fly Fuel required Fuel consumption rate 300 minutes (5 hours) 35 gallons/hour 15

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3-2.
Calculation
of
fuel
consumption
rate,
fuel
quantity
required,
and
remaining
cruising
time
A.
Calculation
of
fuel
consumption
rate
(per
hour)
[Problem]
Time
to
fly
300
minutes
(5
hours)
Fuel
consumption
175
gallons
Fuel
consumption
rate
[Solution]
(1)
Bring
17.5
on
the
bezel
ruler
and
30
(5:00)
on
the
dial
ruler
in
line.
(2)
The
bezel
ruler
scale
value
corresponding
to
the
time
index
(60
MPH)
on
the
dial
ruler
scale
is
35.
[Answer]
35
gallons/hour
B.
Calculation
of
fuel
quantity
required
[Problem]
Time
to
fly
300
minutes
(5
hours)
Fuel
required
Fuel
consumption
rate
35
gallons/hour
rn
OQ
0Q
15