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FAST Ship Slides B
1. FastShip: Technical Validation
MIT: SWAN Codes Seakeeping Analysis
MIT: SWAN Codes Seakeeping Analysis
SSPA: Resistance & Propulsion, Seakeeping Tank Tests
SSPA: Resistance & Propulsion, Seakeeping Tank Tests
Danish Technical University: QST, Computer Analysis
Danish Technical University: QST, Computer Analysis
Trondheim University: Extreme Sea Condition Analysis
Trondheim University: Extreme
Det Norske Veritas (DNV): Classification to +100A1 CSA-2A
Det Norske Veritas (DNV): Classification to +100A1 CSA-2A
for Unrestricted Worldwide Operation
for Unrestricted Worldwide Operation
U.S. Coast Guard: Approval of DNV Class in all aspects
U.S. Coast Guard: Approval of DNV Class in all aspects
U.S. NavSea: Evaluation of National Defense Features (NDF)
U.S. NavSea: Evaluation of National Defense Features (NDF)
J.J. McMullen Associates: Due Diligence for Investors
J.J. McMullen Due Diligence for Investors
2. FastShip: Why the Design Works
At higher speeds, SPMH (semi-planing monohull) generates a pressure
At higher speeds, SPMH (semi-planing monohull) generates a pressure
wave under the stern which increases stability and reduces pitching.
wave under the stern which increases stability and reduces pitching.
This, combined with a deep ‘V’ bow, also reduces bow-slamming and
This, combined with a deep ‘V’ bow, also reduces bow-slamming and
drag in rough water – and improves water jet efficiency.
drag in rough water – and improves water jet efficiency.
Due to this pressure wave, vessel becomes progressively more stable
Due to this pressure wave, vessel becomes progressively more stable
in all axes of motion (roll, pitch, and heave) as speed increases.
in all axes of motion (roll, pitch, and heave) as speed increases.
Greater beam than conventional fast hulls further increases stability,
Greater beam than conventional fast hulls further increases stability,
while enhancing the effect of the pressure wave.
while enhancing the effect of the pressure wave.
250MW of power combined with high hull mass, speed and stability,
250MW of power combined with high hull mass, speed and stability,
matches the energy of oncoming waves.
matches the energy of oncoming waves.
Robustness of design and redundancy of systems
Robustness of design and redundancy of systems
assure attainment of performance goals
assure attainment of performance goals
3. Speed Reduction in Head Seas
(M.I.T. Evaluation using SWAN computer
codes, verified by extensive tank testing)
5. FastShip Concept: Leverage commercial ship with
National Defense Features (NDF)
• NAVSEA has identified NDF for FastShip
• NDF can include:
• Stern Door fitted with Ramp; Extra Fuel Capacity; Strengthened
deck panels; Personnel Accommodation Modules*, Cranes*, Internal
Ramps* and Elevators*
• Extra Ventilation and Firefighting Capacity; Austere Mooring;
UNREP
• Capital cost of NDF is estimated to be $15 - $25 million per ship,
depending upon NDF incorporated
• A FastShip vessel is always within 48 hours of Philadelphia
• Conversion from Commercial to Sealift within 48 hours
*Not included in NAVSEA NDF study
*Not included in NAVSEA NDF study
6. FastShip: Specific Capabilities for Sea Basing
• Selective offload of troops and equipment for specific
missions
• At-sea transfer by ramp/crane/helo/VTOL aircraft for
ISO containers, oversize equipment, ammo, personnel
to LCAC, LCU, ISV etc. LCACs can fly from in/out of
stern or carried on top deck via heavy lift cranes,
Amphibious armored vehicles can swim selves to shore
• Medical or decontamination facility available
• Rapid reconstitution of loads in-stream
• Logistics/IT
• Exceptional stability when stopped in-stream due to
wide beam and anti-roll Intering flume tanks.
• Capable of carrying self-defensive armament
• Possible power-generation for disaster relief
7. FastShip: Military Speed/Payload/Range at 95% power
(36 to 41 kts. depending on Range and Payload)
14000
12000 Nominal Payload Limit (12,000 tons)
2 Armored Battalions (10,069 tons)
10000 36kt
Payload - Tons
8000 37kt
6000 2 Air Cav. Sqdns + 1 Arm’d Battn (5,821 tons)
38kt
4000
39kt
2000 4 Air Cavalry Squadrons (1,573 tons)
0 41kt 40kt
0 2000 4000 6000 8000 10000 12000
Range - N. Miles
15. FSS, 72% Faster than LMSR Incl. Suez
Canal, with 12,000 ton load ( * = total
time from CONUS to load delivered
Ship Load Voyage Out: Unload Voyage R’nd Trip
Type Time: ashore at SPOD) (Days) Time:
(Days) Time: Back:
(Days) (Days) (Days)
Fast 1.4 10.9 (36 Kt.) 0.3 9.9 (40 Kt.) 22.5
Ship (12.6)*
FSS 2.5 14.2 (27 Kt.) 2.5 12.9 (30 Kt.) 32.1
(19.2)*
LMSR 4 16.6 (23 Kt.) 4 15.9 (24 Kt.) 40.5
(24.6)*
Standrd 2 21.6 (17 Kt.) 2 20.4 (18 Kt.) 46
Containr (25.6)*
/Ro-Ro
(SCRC)
16. FastShip delivers 50 - 200% greater
lift to Kuwait over 58 days…
Tonnes Delivered
Load 3
35000
30000
Load 1 Load 2
25000 Load 2
FSS
20000
FastShip
15000 Load 1 Load 1 Load 1 LMSR
10000 SCRC
5000
0
0 12.6 18.2 21.9 25.6 35.1 49.3 57.6
Days Taken to Deliver from Charleston to Kuwait
17. …and, even if Suez is blocked,
FastShip only needs 2.7 days longer
to sail around Africa to Kuwait
DAYS
35
30
25
20 FastShip
FSS
15 LMSR
SCRC
10
5
0
Via Suez Round Africa
18. FastShip can be the bridge between existing ships and the
future’s ultra-fast ships: saves 4+ days to the Gulf
New concepts
(Trimaran, SES)*:
•Expensive to develop
(> $1.24 billion each)
•Long lead times (> 8
years)
•Technology and
capability problematic
•Only 38% of FastShip
payload; range in
doubt.
*SOURCE: NavSea/USNSWC
Carderock Report (NSWCCD – 20
– TR-2002/06), May ‘02
Editor's Notes
tr
How Fast and Slow Hulls Are Slowed Down By Big Seas: Now we compare FastShip and the Slender Monohull with a conventional Container Ship of about the same size as the two other hulls, as the seas get rougher, from calm up to 7.5 Meters Significant Wave Height (25-50 ft. seas). This is the maximum height at which FastShip can operate at full power. In calm conditions, at her maximum cruising speed of 22.5 knots, the Standard container ship will be more efficient than the other two, in ton-mile terms, as a DC- 6 was in still air at 250 knots compared with a 707. However, as the sea gets up the container ship experiences a big loss of speed due to increased drag from plunging and bucking through the waves. This increases her wetted surface and, hence, frictional drag. She has neither the power, the speed, nor the seakeeping ability to get away from a big storm. So, at the ‘red line’ wave height for Fastship, the container ship has had to reduce speed from 22.5 knots to about 14 knots: a reduction of 40 percent. Likewise, the Slender Monohull has to reduce speed from 32 knots to about 22.5 knots: again a reduction of some 30 percent. Yet FastShip only has to reduce speed from 39 knots to 36.5 knots, a reduction of only 8 percent, and is still able to maintain a speed 14 knots faster than the Slender Monohull and 23 knots faster than the container ship – or nearly 3 times its speed. This all provides a welcome increase in reliability – something which has never applied to ocean shipping in the past. (Computed by M.I.T., using SWAN II numerical simulation)
FastShip Military Speed/Payload/Range: This chart shows the average speeds over different distances, depending upon the load carried. The ranges given are without any refuelling – although a standard US Navy UNREP facility is recommended as an NDF. FastShip uses the same MDO fuel specification as the U.S. Navy’s gas turbine-powered surface combattants and LMSR’s However, for military sealift operations, FastShip can be rapidly converted to carry strategic loads of equipment and personnel over much-increased distance, by use of the additional fuel capacity within the ship. Standard US Army accommodation units, based on TEU’s, can be carried abaft the bridge. Studies contracted with the US Naval Sea Systems Command have demonstrated the feasibility of these arrangements, enabling the US to maintain a maritime high-speed heavy-lift capability, equivalent to the Civil Reserve Air Fleet maintained by the US airlines. The US Navy study estimated that, equipped with strong-points and extra fuel tanks under the National Defense Features (NDF) program, a ship could be converted to military sealift in about 48 hours. For military operation the full load displacement can be increased to 42,000 tonnes.
