Fuze terminology and types

Question 1

1. What does a creep spring do?

Answer 1

Prevent creep action of a firing pin during slowing of a fuze body

Question 2

2. What is centrifugal force/spin?

Answer 2

Centrifugal force is like a merry-go-round

Question 3

3. What does impeller do?

Answer 3

Turned by air flow or water as it move through

Question 4

4. What are the five non-explosive components?

Answer 4

Firing pin, Rotor, Escapement device, Detent, and Slider (FREDS)

Question 5

5. What does the detent to?

Answer 5

Hold everything in place

Question 6

6. What does the slider do?

Answer 6

Keep the firing pin back unaligned until it is time

Question 7

7. What does a rotor do?

Answer 7

Turns to align the slider

Question 8

8. What is an escapement device?

Answer 8

Energy system that drives the rotor (ie. Coil spring)

Question 9

9. What are the fuze type classification?

Answer 9

Point detonating, base detonating, and point initiating-base detonated (PIBD)

Question 10

10. What are the options on a point detonating fuze?

Answer 10

Superquick and Delay

Question 11

11. What is impact inertia?

Answer 11

Continuing motion of fuze parts upon sudden deceleration of the fuze body

Question 12

12. What are the two types of PIBD?

Answer 12

Mechanical (spit back) and Electrical (PE/Lucky)

Question 13

13. What are the three types of time fuze?

Answer 13

PTTF powder train time fuse
MT Mechanical time
ET electrical time

Question 14

14. How can you identify a PTTF?

Answer 14

Three rings, made of brass, and all have vent hole

Question 15

15. How mechanical time works?

Answer 15

Use centrifugal force and wound springs to motivate escapement devices

Question 16

16. What are the three types of pressure?

Answer 16

Direct
Fluid
Air

Question 17

17. What is pyrotechnic delay?

Answer 17

A device added to a firing system which transmits the ignition flame after a predetermined delay time