Excercising with submarines

Question 1

What are the different types of CASEX?

Answer 1

CASEX A - ASW ships and/or helicopters

CASEX B - Involving ASW aircraft

CASEX C - Multiple ASW forces

CASEX D - Excercises involving SSNs in the escort role

CASEX E - Excercises of a miscellaneous nature

Question 2

What are the methods to communicate with submarines?

Answer 2

Signals
R/T
MSS (Marine sound signals)

ESUS (Electronic Sound underwater signal)
Code 1 - Attack/COMEX
Code 2 - Remain at safe depth
Code 3 - Return to periscope depth and establish tactical radio communications
Code 4 - FINEX
Code 5 - Fishing vessel deconfliction (Uniform procedure)

Underwater telephone ((UWT) GERTRUDE))

Question 3

What is a red (pyrotechnic) grenade?

Answer 3

May be fired by a submarine to indicate that it is carrying out emergency surfacing procedures or is on the bottom and unable to surface

Question 4

What is a green (pyrotechnic) grenade?

Answer 4

A SM will fire a green grenade to indicate an attack using a conventional torpedo.

If two Green Grenades are fired, it indicates an attack using a nuclear torpedo.

Question 5

What does Yellow flare / White smoke?

Answer 5

If a SM fires a Yellow flare at night or white smoke by day indicates the SM position (with the intent to surface if a further smoke/flare is released three minutes later)

Question 6

What are the 3 procedures for Submarine SAR

Answer 6

SUBLOOK - Submarine safety report is overdue by one hour

SUBMISS - Submarine safety report is overdue by six hours or 3 hours for a single compartment submarine

SUBSUNK - Has positive information that a submarine has sunk.