One-shot Devices
Table A-59 lists reliability data for one-shot devices.
Table A-59. Reliability Data for One-Shot Devices
One-shot Device
Reliability
(i.e., Probability of Successful Operation)
95
Confidence Limits
Failures per 106 Trials
(See Note 1)
Acutator, hot gas
0.9983
0.9992
0.9960
1750
Cartridge, Ejector Release Unit
0.9992
0.9998
0.9972
760
Cartridge, Cover Removal
0.9897
0.9965
0.9700
10350
Expansive Motor: Motor, Gas Piston, Thruster
0.9998
0.9999
0.9992
150
Flare, guided missile
0.9994
0.9999
0.9986
566
Gas Generator (actuator or remote gyro)
0.9988
0.9990
0.9985
1154
Gyro assembly, remote (efflux of remote gas
0.9991
0.9999
928
generator impinges on buckets cut into rotor
periphery. Reliability of gas generator and
igniter not included)
0.9976
Gyro assembly, integral (cordite charge built
0.9936
0.9964
6359
into periphery of rotor; Catherine wheel prin-
ciple)
0.9889
Table A-59. Reliability Data for One-Shot Devices
gniter, electric, bridge wire
0.9996
0.9999
0.9990
430
Igniter, fuzehead
0.9983
0.9991
0.9969
1700
Ignition and Safety Arming Unit (Rocket
0.9903
0.9939
9745
Motor)
0.9851
*Rocket Motor, case-bonded type (less igniter
0.9993*
0.9997*
666*
and electrical supply failures)
0.9983*
Rocket Motor, loose-cartridge type (includes
0.9988
0.9993
1246
igniter and electrical supply failures)
0.9978
Switch, fusible link
0.9992
0.9999
0.9957
735
Thermal Battery, cup and cover type
0.9996
0.9999
0.9985
400
Thermal Battery, Pellet: Siconium/barium
0.9997
0.9999
320
Chloarte pyrotechnic
0.9982
Thermal Battery, Pellet: Iron/Potassium
Perchlorate pyrotechnic
Table A-59. Reliability Data for One-Shot Devices
Typical Warhead Initiation Train,
(surface-to-air or air-to-air), consisting of:
0.9929
0.9979
0.9768
7100
Wire Guidance Mechanism
0.9986
0.9991
0.9978
1400
* 
All data (except *) includes failures in associated electrical power supplies, including electrical wiring, switches, plug/socket connectors, etc..
Electrical power and wiring
Safety and Arming Unit (Single Channel, Mechanical Shutter)
Pressure Delay Unit or Accelerometer
Infra Red Fuze
Warhead