Thunderbolt

wreck in Marathon

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Details

Advanced Open Water

Minimum Recommended Certification

Max Depth	120 ft
Average Depth	105 ft

Access

Permanent Mooring Balls

GPS coordinates

24° 39.665' N
80° 57.794' W

Frequently visiting operators

Captain Hook's Marathon

🎥 ISDC en Español

The starboard porpeller

📸 Pablo Strika @ ISDC

The main attraction of this wreck: the cable reel

📸 Pablo Strika @ ISDC

A view of the bridge

📸 Pablo Strika

The port propeller - the mooring ball rests right there

📸 Pablo Strika

There are many ghosts fishing line on this wreck

📸 Pablo Strika

Best Gas

show details

Diluent mix

Oxygen 21%

Helium 35%

Nitrogen 47%

Gas prices

Diluent tank	$35.50
O2 tank	$10.00

Diluent

Diluent PPO2 at max depth (120 ft) 0.9 atm

O2 Content Diluent

Set Point 1.2 atm

Set Point

END at max depth (120 ft) ft

He Content Diluent

O2 narcotic?

Loop temperature at depth °F/°C

Loop temperature

Consider H2O vapor?

Gas density g/L

Hypoxic at surface

Calculate Best Diluent

Gas mix

Oxygen Bottom PPO2

Helium Bottom PPO2

Nitrogen Bottom PPO2

Gas prices

Aluminum 80	$10
Steel HP 100	$10
Steel LP 85	$10

NDL at 120 ft - 24 hr min surface interval - m

Calculate NDL

Always use a dive computer

Nitrox

PPO2 at max depth (120 ft) Bottom PPO2 atm

PPO2 at average depth (105 ft) Bottom PPO2 atm

O2 Content

32%

Calculate Best Nitrox

Decompression planning

Wreck Details

Cable Ship

Sunk date

March 3rd, 1986


188 ft	37 ft
Length	Beam

Site Description

Route

Typical Conditions

Wreck History

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