By Stuart Ballantyne Sea Transports Solutions Stern Landing Vessels SLV have carved a niche into the small ship market opening significant opportunities for builders and operators of passenger utility container roro bulk AHTS and PSV vessels ID: 223688
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By: Stuart Ballantyne. Sea Transports Solutions Stern Landing Vessels (S.L.V.) have carved a niche into the small ship market, opening significant opportunities for builders and operators of passenger, utility, container, roro, bulk, AHTS and PSV vessels. The S.L.V. was a result of Sea Transport Solutions focussing on possible answers to the operational problems of conventional landing craft and to produce a vessel suitable for multi purposes.
Stern Landing VesselsSlide2
Conventional Landing CraftProblem Area No. 1:-Poor Head Sea CapabilityHaving a bluff bow , waves in excess of 600mm (2 feet) start to cause slamming, jarring of the whole structure and spray enshrouding the cargo and the wheelhouse…….,
and the speed will drop dramatically Slide3
The bow ramp in the stowed position creates a blind sector in the wheelhouse visibility. As most of these craft operate in coastal, inland and shallow areas, this of course is a problem in close quarter navigation. There are many recorded instances of groundings due to this fact, and running into windsurfers & small fishing boats at anchor has also occurred.
Conventional Landing Craft
Problem Area No. 2:-
Poor VisibilitySlide4
Conventional Landing CraftProblem Area No. 3:-The machinery space below the wheelhouse is just a source of noise and vibrations which makes life unpleasant for those onboard. For the crew, this can lead to lack of concentration and fatigue, particularly on extended voyages.Wheelhouse on top of MachinerySlide5
Conventional Landing CraftProblem Area No. 4:-While trying to debeach, the traditional landing barge frequently encounters difficulty, particularly where the bow has grounded. This encompasses:- 1. Propellers working inefficiently (ie. in reverse). 2. Problematic loading of heavy equipment & large trucks. 3. Bottom suction to sea bed in low draft, soft soil areas.
Beaching and DebeachingSlide6
Conventional Landing CraftProblem Area No. 5:-The stability of a box shape barge is quite limited due to: 1. Low profile of the GZ curve. 2. Small freeboard, & shallow deck edge immersion 4-5degrees. 3. Free surface of numerous below deck flat bottom tanks.The stated total deadweight (dwt) of these vessels in most cases includes below deck liquid cargoes.
“On deck” dwt is frequently as low as 45% of the total dwt.
Lack of DeadweightSlide7
Conventional Landing CraftProblem Area No. 6:-Constant pounding of the bow ramp may loosen securing fixtures and drop the ramp.Once the ramp submerges with the vessel underway the forces generated will fold the ramp under the vessel and tear it off.
Loss of RampSlide8
??? T H E S O L U T I O N
???
In 1984, S T S established the criteria for an SLV.
1. Good head sea capability.
2. Ability to beach & debeach with ease. 3. Good visibility from the wheelhouse.
4. Accommodation clear of machinery space 5. Finer hull shape with a higher sustainable speed. 6. Cargo deck spray protection
7. Less free surface in tanks. 8. Access to bottom plating when beached
9. Elimination of the suction effect
10. Total protection of the stern gear
Slide9
The S.L.V. incorporates a shallow “V” hull with two side pods, offcentre shafts & a beaching/protection/aft skeg arrangement.The Stern Landing Vessel is now a fine tuned design that has evolved to be a commercially & operationally unbeatable landing craft design suitable for multi purposes.
Stern Landing Vessel
Introducing
the . . .Slide10
Conventional Landing Craft vs
50m Stern Landing Vessel
“
Gulf Glory
”
Deck Area: 357m2
TEU (Gr slots): 16
Dk Dwt Cap:
300t.
Bulk Cap:
400m
3
“
Gulf Sky
”
Deck Area:
306m
2
TEU (Gnd):
15
Dk Dwt Cap:
300t
.
Bulk Cap:
440m
3
“
50m S.L.V.
”
Deck Area:
500m
2
TEU (Gnd):
24
Dk Dwt Cap:
1000t.
Bulk Cap:
1000m
3Slide11
50m Stern Landing VesselL o a d i n g C o n f i g u r a t i o n s
Container / Roro(Stern View)
Bulk / Roro
(Stern View)Slide12
“Sylvan” 20m Papua New Guinea Utility Boat“Debarge” 20m Western Australia Utility Boat
“Debarge 2” 23m Western Australia Utility Boat“Norwest Pearl”
23m Western Australia Pearling Vessel“
Trader” 25m Queensland Pass/Car Ferry
“Deepwater” 35m Queensland Bulk Carrier
“Lana” 35m New Zealand Pass/Car Ferry
“Lara V” 35m New Zealand Pass/Roro Ferry“
Matthew Flinders”
35m Tasmania Cargo+Livestock
“Tina”
40m Vanuatu Pass/Roro Ferry
“
Havanna”
60m New Caledonia Pax/Roro Ferry
“
Aburri”
** 80m Northern Territory Bulk Carrier
“Wunma”
** 110m Queensland Bulk Carrier
Stern Landing Vessels
Currently OperatingSlide13
Length. Speed Cargo Capacity20 m 9 kts 38 tonnes on deck or 45 t f.o.below deck. 25 m 10 kts 95 tonnes on deck or 100 t. f.o. below deck
35 m 10 kts 470 tonnes (Sheltered waters) 350 tonnes (coastal) - 16 TEU
50 m 11 kts 1100 tonnes (sheltered waters) 900 tonnes (coastal) - 48 TEU
(similar under deck tank capacity.)
70 m 12 kts 1550 tonnes coastal - 130 TEU 80 m 13 kts 3000 tonnes coastal - 160 TEU
110 m 11 kts 5300 tonnes coastal - 270 TEU
S L V CapabilitiesSlide14
20 m Stern Loading Vessel - “M.V. SYLVAN”
Stern Landing Vessels- Photo Gallery
-Slide15
23 m Stern Landing Vessel - “M.V. NORWEST PEARL”Stern Landing Vessels
- Photo Gallery -Slide16
35 m Low Profile Stern Landing Vessel - “M.V. DEEPWATER”
Stern Landing Vessels- Photo Gallery
-Slide17
35 m Stern Landing Vessel - “M.V. MATTHEW FLINDERS”Stern Landing Vessels
- Photo Gallery -Slide18
35 m Stern Landing Vessel - “M.V. LANA”Stern Landing Vessels
- Photo Gallery -Slide19
40 m Stern Landing Vessel - “M.V. TINA”Stern Landing Vessels
- Photo Gallery -Slide20
50 m Stern Landing VesselStern Landing Vessels
- Photo Gallery -Slide21
60 m Stern Landing Vessel - for Military UseStern Landing Vessels
- Photo Gallery -Slide22
Note:- full width of stern ramp and low hinge position, for easy and rapid loading and discharging60m Stern Landing Vessel
1200 Tonnes on deck (coastal)Slide23
Stern Landing Vessel ApplicationsFloat on / float off utility vessel deploymentFloating dock-like properties for recovering / discharging floating cargoProtected stern gear to facilitate safe and easy beachingPlatform Supply VesselsAnchor Handling, Towing & Supply VesselsSlide24
144 TEU (shown with self contained crane)70m SLV –1800dwt 13ktsSlide25
80 m Stern Loading Vessel - “M.V. ABURRI”Stern Landing Vessels
3300 Cargo Dwt –3.5m draftSlide26
110m x 22 x 3.7m draft, 5,300 cargo dwt, 11ktsStern Landing Vessel “WUNMA” -Slide27
110 m Stern Loading Vessel - “M.V. WUNMA”Stern Landing Vessels
- Photo Gallery -Slide28
Contact:- Phone: +44 20 7681 1505Fax: +44 870 168 0554 Web: www.catamaranferries.comEmail: info@catamaranferries.comExclusive agents for:-
“Sea Transport Consultants - Naval Architects”