Mechanical Devices and Fuze components

Question 1

What are the principle requirements of fuzes?

Answer 1

Safety and Reliability

Question 2

All fuzes embody mechanical devices to ensure:

Answer 2

• Fuze functions at the desired moment
• Safety in handling, before and during loading
• Bore and muzzle safety immediately after firing
• Arming after leaving the muzzle

Question 3

A fuze is in an armed state when

Answer 3

all of the safety constrains have been removed

Question 4

Name 5 firing devices:

Answer 4

• Striker
• Striker spring
• Hammer
• Anvil
• Inertia Pellet

Question 5

What are the holding, locking and safety devices?

Answer 5

• Shear Wire
• Striker Spring
• Spring Disc
• Stirrup spring and ferrule
• Safety pin
• Bore Riding Pin
• Cotter
• Pull pins

Question 6

What are the two types of masking devices?

Answer 6

Non Delay Arming/Masking Shutter and Slides

Delayed Arming Shutter

Question 7

What is a holding device

Answer 7

A holding device locks other components in a safe position until arming is required; to unlock them when arming is required; and possibly to relock them in the armed position.

Question 8

What is a masking device?

Answer 8

It ‘masks’ or obstructs the explosive train until arming is required, ensuring that accidental premature firing of the train does not affect the whole train

Question 9

What is a firing device

Answer 9

The component which provides the stimuli to initiate the explosive train

Question 10

What are 3 types of electrical firing

Answer 10

• Conducting Cap
• Bridge Wire
• Exploding Bridge Wire type

Question 11

What are some advantages of electronics

Answer 11

• Lower Costs
• Multi role function
• Versatility in arming
• Mechanical Preparation or initiation