Seiko Rotary Slide Rule Manual - Page 19
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B. Calculation of climbing rate m [Problem] on Climbing rate Climbing time . Altitude to reach 18.6 minutes 8000 FT [Solution] (1) Bring 80 on the bezel ruler and 18.6 on the dial ruler in line. (2) Find the value on the bezel ruler scale corresponding to 10 on the dial ruler scale. The number is 43. (3) For the purpose of determining the correct number of digits, the same rule as for division (2-1(B)) applies. Thus, the answer is 430. [Answer] 430 FT/minute C. Calculation of climbing time [Problem] Climbing rate : Climbing time : Altitude to reach : 430 FT/minute ? 8000 FT 19
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B.
Calculation
of
climbing
rate
[Problem]
Climbing
rate
Climbing
time
.
18.6
minutes
Altitude
to
reach
8000
FT
[Solution]
(1)
Bring
80
on
the
bezel
ruler
and
18.6
on
the
dial
ruler
in
line.
(2)
Find
the
value
on
the
bezel
ruler
scale
corresponding
to
10
on
the
dial
ruler
scale.
The
number
is
43.
(3)
For
the
purpose
of
determining
the
correct
number
of
digits,
the
same
rule
as
for
division
(2-1(B))
applies.
Thus,
the
answer
is
430.
[Answer]
430
FT/minute
C.
Calculation
of
climbing
time
[Problem]
Climbing
rate
:
430
FT/minute
Climbing
time
:
?
Altitude
to
reach
:
8000
FT
m
on
19