Paul MacDonald Paul MacDonald

Comms & Positioning

Underwater telephone, VHF, sonar, USBL positioning, altimeter, external LED arrays and a top light. An optional manipulator arm can be fitted for sampling and recovery work.

Underwater telephone, VHF, sonar, USBL positioning, altimeter, external LED arrays and a top light. An optional manipulator arm can be fitted for sampling and recovery work.

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Paul MacDonald Paul MacDonald

Redundant Monitoring

Two completely independent Dräger X-am 5600 units track O₂, CO₂ and H₂, backed by a dedicated Freon sensor for the air-conditioning circuit. Alarms trigger well inside safe limits.

Two completely independent Dräger X-am 5600 units track O₂, CO₂ and H₂, backed by a dedicated Freon sensor for the air-conditioning circuit. Alarms trigger well inside safe limits.

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Paul MacDonald Paul MacDonald

Dead Man Switch

Below 5 msw a timer runs continuously. At nine minutes the pilot is prompted; at ten an alarm sounds; ten seconds later the diving tanks blow automatically and upward propulsion engages. The vessel surfaces whether or not anyone is conscious aboard.

Below 5 msw a timer runs continuously. At nine minutes the pilot is prompted; at ten an alarm sounds; ten seconds later the diving tanks blow automatically and upward propulsion engages. The vessel surfaces whether or not anyone is conscious aboard.

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Paul MacDonald Paul MacDonald

Maximum Depth Protection

A warning is raised 5 m above the configured limit. At the limit an audible alarm sounds. Five metres beyond it, the tanks blow and upward thrust engages automatically until the sub is back within its envelope.

A warning is raised 5 m above the configured limit. At the limit an audible alarm sounds. Five metres beyond it, the tanks blow and upward thrust engages automatically until the sub is back within its envelope.

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Paul MacDonald Paul MacDonald

MANTA & MARLIN

MANTA gives pinpoint manoeuvring with auto-heading and auto-depth, and hands supervised control to the passenger. MARLIN is a wireless surface remote for launch, recovery, and unmanned positioning over a dive site.

MANTA gives pinpoint manoeuvring with auto-heading and auto-depth, and hands supervised control to the passenger. MARLIN is a wireless surface remote for launch, recovery, and unmanned positioning over a dive site.

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Paul MacDonald Paul MacDonald

Drop Weight & Release Buoy

A 100 kg drop weight can be released manually from inside on an independent 60-bar emergency hydraulic circuit — the same circuit that serves the buoy and manipulator releases.

A 100 kg drop weight can be released manually from inside on an independent 60-bar emergency hydraulic circuit — the same circuit that serves the buoy and manipulator releases.

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