Topic 4 Submarine specific questions

Question 1

How do we dive the submarine and then resurface

Question 2

How does the submarine propel through the water and change depth? List all modes of propulsion

Answer 2

The propulsor is powered by the main engines to provide thrust. The submarine changes depth by use of fwd and after planes. modes of propulsion:
EPM
SPM
Main engines

Question 3

List the different class of submarines currently in service along with their roles, number in class and their names.

Answer 3

Trafalgar class:
a. HMS triumph

Vanguard class:

a. HMS vanguard
b. HMS vigilant
c. HMS victorious
d. HMS Vengeance

Astute class:

a. HMS astute
b. HMS Anson
c. HMS Audacious
d. HMS Agamemnon
e. HMS Ambush
f. HMS Artful
g. HMS Agincourt

Question 4

List the pros and cons for nuclear submarines compared to conventional powered submarines.

Answer 4

Pro’s:
Nearly unlimited range only limited by food supply and the crews mental stability
Much higher energy output
No need to surface the submarine other than to discharge waste overboard

Con’s:
Diesel electric is much quieter when running on battery power only
Nuclear submarines are much more expensive than diesel/electric