MIL-PRF-1/851H
TABLE I. Testing and inspection.
Inspection
Method
Notes
Test
Conditions
Symbol
Limits
Unit
Min
Max
Qualification inspection
Barometric pressure,
1002
---
1
Pressure = 656 mmHg
---
---
---
---
reduced
(absolute)
σ' = 1.05 (max)
T(body) = +60°C to +90°C;
ĆF
Temperature coefficient
4027
---
1
---
0.4
MHz
F = F3
°C
Torque
---
12
in.-oz.
Tuner drive torque (1)
4223
21/
---
F = F1 through F3;
at 30 rpm ±10 percent;
TA = -55°C
T = 125°C
ĆT(body)
°C
TA = +50°C (max);
---
50
Air cooling
1143
4/
3
Pi-Po = 450 W;
adjust Ib;
air = 20 cfm (max)
λg
Phase of sink
4309
10/
---
F = F3; no voltage applied
Distance
0.18
0.22
Conformance inspection,
---
22/
part 1
---
W aveguide output;
---
---
---
---
Pressurizing
4003
11/
30 psia (min)
Heater current
4289
---
4
tk = 180 seconds (min)
If
3.6
4.4
A
Pulse voltage
4306
---
1
F = F1
epy
32
34
kv
σ' = 1.05 (max)
Power output (1)
4250
6/ 12/
1
Po
85
---
W
σ' = 1.5 (min);
Stability (1)
4315
12/ 13/
1
MP
---
2.0
%
pulse energy level
70 ± 5 percent
MHz
9,340
Tuning characteristics
4223
14/
1
g1 +0.95
9,280
MHz
9,060
8,960
g1 +2.75
MHz
8,590
8,450
g1 +5.35
Tuner drive torque (2)
4223
15/
---
No voltages applied;
Torque
---
6
in.-oz.
TA = +25°C
σ' = 1.05 (max)
Power output (2)
4250
12/
3
Po
90
---
W
σ' = 1.5 (min);
Stability (2)
4315
12/ 13/
3
MP
---
2.0
%
16/
pulse energy level
50 ± 5 percent
See footnotes at end of table.
2
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