Betty Bomber

Federated States Of Micronesia, Micronesia

Depth

15m

Visibility

10m - 30m

Entry

Boat

Experience Level

Beginner

Betty Bomber

Federated States Of Micronesia, Micronesia

Depth

15m

Visibility

10m - 30m

Entry

Boat

Experience Level

Beginner

About Betty Bomber

This Mitsubishi G4M bomber lies in 15m of water near Ettea in the Chuuk Lagoon. It is 20 metres (65 feet) long. The average vis is 20 metres (65 feet) The craft is broken but in an upright position. The engines are 50m away from the starboard. There are glassfish housed in the fuselage and the coral growth is impressive. The cockpit is intact The craft itself garnered the nickname '�Betty' from the Allies. It was powered by two 1,850hp Mitsubishi Kasei 22 14 cylinder two-row radial engines and a wingspan of 24.9 metres - 19.6 metres in length. Guns clocked: 7.7 mm gun in the nose, 20 mm gun in dorsal turret and 20 mm guns in the tail and beam windows as well as 1,000 kg of bombs. Max speed is reported to be 455 km/h with 5,000km range. The problem with these craft earning them the nickname of; one-shot lighter or Flying Cigar was the lack of protection versus the flammable load so when it was struck it simply went down. The wings are still intact. The dive is normally done in conjunction with the "Emily" Flying Boat.

Betty Bomber Dive Info

Terrain & Features

Wreck

Entry Type

Boat

Max Depth

15m

Visibility Range

10m – 30m

Experience Level

Beginner

Best Gas Mix

21%

O₂

CNS Load (45 min)

11% at 13m / 36%

O₂

Multi-Level Dive Planner

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Marine Life

Various

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Dive Operators near Betty Bomber

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Location

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Dive Site Hazards

Deceptive Entry Openings — Openings may become restrictive inside due to angle, collapse, or corrosion.
Surge-Induced Internal Silt Shift — Internal surge can move silt and debris without direct contact.
Partial Overhead Environment — Many wrecks limit direct ascent even without full penetration.

Fine Rust Particle Silt-Out — Disturbed rust particles can rapidly reduce visibility.

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