TM5-6675-326-14
6-6.2.33 Area Measurements on Aerial Photographs of Unknown Scale or
M a g n i f i c a t i o n - C o n t i n u e d
( 3 )
Use values provided on Calibration Records Sheet for AT
and RT.
For this example,
t h e v a l u e f o r RT i s 2 1 5 7 a n d AT i s
12.54.
The formula can now be computed on the calculator.
C= 178.372799 X 12.54 = 2 2 3 6 . 7 9 4 9 03
2157
2157
= 1.036993
( 4 )
Press
to
activate
Print
command.
j .
k .
l .
m.
Key in C value (computed with known length of object in
photograph being measured).
Set auto-scaler X MEMORY switch to 2.
Trace boundary line of shape using lens tracing assembly.
s t op
when you reach starting point.
P r e s s
to activate Print command and freeze count.
NOTE
Following are tables providing information
found on preprogrammed magnetic cards. The
tables can be used to verify programs or to
program the calculator if preprogrammed cards
are damaged or lost.
6-91
