Exercising with Submarines

Question 1

What are the different available methods to communicate with a sub

Answer 1

Signals
R/T
MSS (Marine Sound Signals -Codeword Cracker)
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, All clear during the next 10 minutes
Code 4- FINEX
Code 5- Fishing vessel deconfliction (Uniform Procedure)
Underwater Telephone (Gertrude)

Question 2

What does a Red Grenade mean?

Answer 2

Indicates submarine is conducting emergency surfacing procedure, or is on the bottom unable to surface

Question 3

What does one Green Grenade mean?

Answer 3

Indicates an attack using a conventional torpedo

Question 4

What does two Green Grenades mean?

Answer 4

Indicates an attack using a nuclear torpedo.

Question 5

What do Yellow Flares or White Smoke mean?

Answer 5

Indicates SM Position and intent to surface if another released after 3 minutes

Question 6

Define SUBLOOK

Answer 6

This procedure is initiated when a submarines safety report is overdue by one hour

Question 7

Define SUBMISS

Answer 7

This procedure is initiated when a submarine safety report is overdue by six hours or for a single compartment submarine 3 hours.

Question 8

Define SUBSUNK

Answer 8

This procedure is initiated when a submarine operating authority has positive information that a submarine has sunk. It’s also used to initiate a fully coordinated search for a submarine which is believe missing.