TM 55-6610-247-40
(4) Overpressure Test. Altimeter shall be subjected
Table 5-3. Variation From Original Scale Errors
After Subjection to 50 Hg--1845X4-03DF
to an absolute pressure of 50 inches of mercury for a
period of I hour. For a period of not less than 6 hours
STANDARD
following this overpressure. altimeter shall not be
ALTITUDE
VARIATION
subjected to any operation other than atmospheric
FEET
FEET
pressure. Scale errors shall not vary from previously
6,000
45
noted scale errors by more than tolerances listed in table
8,000
45
53.
10,000
60
Table 5-3. Variation From Original Scale Errors
12,000
60
After Subjection to 50 Hg--1845X4-03DF
14.000
60
STANDARD
16,000
60
ALTITUDE
VARIATION
18,000
60
FEET
FEET
20,000
75
22,000
75
00
30
24,000
75
500
30
28.000
75
1,000
30
32,000
90
1,500
45
35,000
105
2,000
45
0
3,000
45
4,000
45
5-2
