Non-Subscriber Extract
Manned Submersible LR5 Specification
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| 16 August 2000 |
Manned Submersible LR5 Specification
Information kindly supplied by Rumic Ltd
Vehicle Dimensions
Vehicle Dimensions
| Length: | 9.2m |
| Width: | 3m |
| Height without 'mating skirt': | 2.75m |
| Height including 'mating' skirt and 15 degree wedge: | 3.5m |
| Weight with 'mating' skirt and 15 degree wedge fitted: | 21.5 tonnes |
| Maximum operating depth: | 400m msw |
Construction
| Command Module: | Glass Reinforced Plastic |
| Rescue Chamber: | Steel |
| Viewports: | Acrylic |
Main Propulsion
2 off 6KW brushless DC motors driving
2x 660mm diameter 3 bladed propellers (steerable)
Auxiliary Propulsion:
2 x 4.5 H.P. hydraulic transverse thrusters
2 x 4.5 H.P. hydraulic side thrusters tiltable through 180 degrees
Batteries:
120V and 24V 504 AH at 5 hour rate
Endurance highly dependent on battery usage, likely to range 6-10 hours
Charging time 8 hours maximum
Life Support:
1824 man hours
Payload:
Nominally, the payload is stated at 1425 kg.
Additional buoyancy can be carried externally to augment payload.
Speed:
Maximum speed is 2.5 knots.
Navigation Equipment:
Gyro Compass
Echosounder
Tracking Transponder can be carried (compatible with support vessel system)
Autopilot
Sonar Equipment:
Obstacle Avoidance Sonar Ametek Sea Probe Model 250A CTFM
Sonar range capability 600m
Pinger Receiver 27 KHz
Through Water Communications:
Underwater Telephones SUBCOM- 10 KHz (compatible with 2008 and 2056), and 27 KHz.
2056 - Voice and Pinger, 10 Khz, 27 Khz and 45 Khz
Also pinger only, 27.5 Khz
Radio Equipment:
VHF/UHF multi-channels
Tools available:
Manipulator Slingsby TA 9-7 function master slave.
Claw 2-function ejectable claw with 12" and 21" diameter options.
'Secateur' Cutter Capacity to cut 25mm diameter soft rope.
'Guillotine' Cutter Capacity to 50mm and 89mm wire rope.
Disc Cutter 305mm discs.
Underwater Television and Still Camera:
External Cameras:
1 x SIT Black/White aft
1 x SIT Black/White forward
1 x CCD within skirt
Plus Video recording facilities from any of these cameras.
Operating Crew:
The normal operating crew supporting LR5 on a 24 hour basis consists of eight qualified personnel.
The submersible crew normally consists of one pilot and one co-pilot and one rescue chamber operator.
Operating Parameters:
The following operating parameters are relevant to LR5's role in the event of a DISSUB:
Weather/Sea Conditions:
When operating from a purpose-built support vessel, LR5 can operate up to a seastate developing a 5m significant wave height. In less suitable vessels of opportunity the operating limits could be reduced to Sea State 4 or less. Surface visibility is not to be less than one nautical mile.
Tide/Current:
LR5's maximum speed of 2.5 knots limits the operations of 1.5 knots bottom current. When 'mating' with a DISSUB this reduces to 1 knot.
Mating angle:
'Mating' can be achieved at up to 10 degrees heel on LR5 or up to 60 degrees bow up. To assist with 'mating' at angles a 15 degree skirt wedge is available.
Rescuee Capability:
At internal pressure of five bar (gauge). LR5's cram capacity is 16 rescuees.
Auxiliary Equipment:
The Auxiliary Equipment necessary to support LR5 rescue operations is fully contained within 2 standard containers and one half height container includes battery charging, HP air and oxygen charging and workshop facilities.
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| LR5
manned submersible being lowered (Cable & Wireless Marine) (1998) |
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LR5 being prepared for operation (Cable & Wireless Marine) (1998) |