Navy Dive Manual Rev 6 Scuba Sup Material

Front 1

REQUIRED EQUIPMENT FOR SCUBA OPERATIONS
(7-2)

Back 1

-Open-circuit SCUBA
-Face mask
-Life preserver/buoyancy compensator
-Weight belt and weights as required
-Knife
-Swim fins
-Submersible pressure gauge or Reserve J-valve
-Submersible wrist watch Only one is required when diving in pairs with a buddy line
Depth gauge
-Octopus

Front 2

Equipment Authorized for Navy Use
(7-2.1)

Back 2

Only diving equipment that has been certified or authorized for use by the NAVSEA/00C ANU list shall be used in a Navy dive

Front 3

Working with Tools
(7-7.9)

Back 3

When using externally powered tools with SCUBA, the diver must have voice communications with the Diving Supervisor.

Front 4

Open-circuit SCUBA dives requiring decompression may be made only when
(7-8.3)

Back 4

considered absolutely necessary and authorized by the Commanding Officer or Officer in Charge (OIC).

Front 5

Operational Guidelines and Safety Precautions, all warm water diving operations above 88°F
(6‑5.3.1)

Back 5

- Weight losses up to 15 lbs (or 6-8% of body weight) due to fluid loss may occur and mental and physical performance can be affected. Divers should hydrate fully (approximately 500 ml or 17 oz) two hours before diving. Fluid loading in excess of the recommended 500 ml may cause life-threatening pulmonary edema and should not be attempted.
- Hydrating with water or a glucose/electrolyte beverage should occur as soon as possible after diving. Approximately 500 ml should be replaced for each hour of diving.
- Exposure limits represent maximum cumulative exposure over a 12 hour period. Divers should be hydrated and calorically replete to baseline weight, rested, and kept in a cool environment for at

Front 6

NORMAL AND MAXIMUM LIMITS FOR AIR DIVING SCUBA
(6-6.1)

Back 6

- 60 FSW, Maximum depth for standby SCUBA diver using a single cylinder with less than 100 SCF capacity
-100 FSW, Open-circuit SCUBA with less than 100 SCF cylinder capacity
-130FSW, Open-circuit SCUBA, normal working limit
-190FSW, Open-circuit SCUBA, maximum working limit with Commanding Officer’s or Officer-in-Charge’s permission

Front 7

Manning for SCUBA Dives
PVA

Back 7

7 Instructors
-Supervisor
-Charts/Logs
-Inside Tender
-Igloo Inside Tender
-Wet Pot Inside Tender
-Wet pot/igloo driver
-Divers Breathing Gas Console Operator

Front 8

Manning for SCUBA Dives
DSF

Back 8

5 Instructors and 2 Civilians
-Supervisor
-Charts/Logs
-Inside Tender
-Igloo Inside Tender
-Wet Pot Inside Tender
-Wet pot/igloo driver (CIV)
-Inner Lock Operator (CIV)

Front 9

Manning for SCUBA Dives
YDT at sea

Back 9

5 Instructors
-Supervisor
-DMT/DMO
-Standby
-2 Instructors in water
(1 instructor per four students)
Coxswain provided by craft department

Front 10

Manning for SCUBA Dives
PSSB

Back 10

3 Instructors
-Supervisor
-Outside Tender
-Inside Tender

Front 11

Manning for SCUBA Dives
Ammo Pier

Back 11

3 Instructors
-Supervisor
-Outside Tender
-Inside Tender

Front 12

Manning for SCUBA Dives
Night Dives

Back 12

4 Instructors
-Supervisor
-Outside Tender
-Inside Tender
-Coxswain

Front 13

Manning for SCUBA Dives
Small Boat

Back 13

5 Instructors
-Supervisor
-Outside Tender
-Inside Tender
-Standby
-Coxswain

Front 14

Tender Safety Considerations
(6‑4.4.1.3)

Back 14

- Sunburn and windburn
- Hypothermia and frostbite
- Heat exhaustion

Front 15

Reduced Surface Visibility Considerations
(6‑4.4.1.5)

Back 15

Variations in surface visibility are important. Reduced visibility may seriously hinder or force postponement of diving operations. For operations to be conducted in a known fog belt, the diving schedule should allow for delays because of low visibility. Diver and support crew safety is the prime consideration when determining whether surface visibility is adequate. For example, a surfacing diver might not be able to find his support craft, or the diver and the craft itself might be in danger of being hit by surface traffic. A proper radar reflector for small craft should be considered.

Front 16

Contaminated Water
(6-5.4)

Back 16

When planning for contaminated water diving, medical personnel should be consulted to ensure proper pre-dive precautions are taken and post-dive monitoring of divers is conducted. Resources and technical advice for dealing with contaminated water diving conditions are available in the Guidance for Diving in Contaminated Waters, SS521-AJ-PRO-010, or contact NAVSEA 00C3.

Front 17

Chemical Contamination
(6-5.5)

Back 17

The MK 21 UBA with a double exhaust and a dry suit dress assembly affords limited protection for diving in polluted and contaminated water. Refer to the MK 21 UBA NAVSEA Technical Manual, S6560-AG-OMP-010, for more information on using the MK 21 UBA with a dry suit assembly.

Front 18

The main advantages of SCUBA
(6-6.3)

Back 18

The main advantages of SCUBA are mobility, depth flexibility and control, portability, and reduced requirement for surface support.

Front 19

The main disadvantages of SCUBA
(6-6.3)

Back 19

The main disadvantages are limited depth, limited duration, lack of voice communications (unless equipped with a through-water communications system), limited environmental protection, remoteness from surface assistance, and the negative psychological and physiological problems associated with isolation and direct exposure to the underwater environment.