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Author Topic: Sea Control Ship (SCS) and VSTOL Support Ship (VSS)  (Read 25051 times)

Online PaulMM (Overscan)

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Sea Control Ship (SCS) and VSTOL Support Ship (VSS)
« on: May 06, 2006, 02:36:41 pm »
SCS SWATH design carrier

(Slightly off topic but cool :)
"They can't see our arses for dust."
 
- Sir Sydney Camm

Offline Dronte

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Re: Sea Control Ship (SCS) and VSTOL Support Ship (VSS)
« Reply #1 on: May 06, 2006, 05:19:21 pm »
More SWATHs and VTOLs

-the first image comes from "Armas de Guerra" {Weapons of War} nš46
"Light Carriers" and it is simply marked  like a "proposal for the US Navy".
 
-the second are of an article of an  Spanish  scientific popularization
magazine of 1989 on "Invisible Ships of War" any information is not
given regarding the same, alone  appears illustrating the concept of SWATH

Offline Triton

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Re: Sea Control Ship (SCS) and VSTOL Support Ship (VSS)
« Reply #2 on: August 30, 2009, 10:17:10 pm »
Sea Control Ship (SCS)

Specifications of preliminary design January 1972 from U.S. Aircraft Carriers: an Illustrated Design History by Norman Friedman.

Light displacement (tons): 9,773
Full load (tons): 13,736
LOA (ft-in): 610
LWL (ft-in): 585
Beam (WL/EXT): 80
Draft (full load) (ft-in): 21.62-0
Depth (ft-in): 67.5-0
SHP: 45,000
Speed (kts): 26 (24.5 sustained)
CIWS: 2

Aircraft (typical embarked):
3 AV-8A (Hawker Siddeley Harrier)
2 LAMPS (Kaman SH-2 Seasprite)
14 SH-3 (Sikorsky Sea King)

Flight deck dimensions (ft):545x105

Hanger height (ft): 19
Elevators (ft): 1 60 x 30 and 1 35 x 50
Capacity (lbs.): 60,000

JP-5 (tons):  950
AvOrd (tons): 180
LM 2500 GT: 2
SSG (GT): 3 2500

Complement
Ship (officers/ratings): 76/624
Aviation: ?

Some images of model of Sea Control Ship (SCS) from U.S. Aircraft Carriers: an Illustrated Design History by Norman Friedman.

Sketch of Sea Control Ship (1974) by AD Baker III from U.S. Aircraft Carriers: an Illustrated Design History by Norman Friedman.
« Last Edit: September 06, 2009, 12:51:14 am by Triton »

Offline Triton

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Re: Sea Control Ship (SCS) and VSTOL Support Ship (VSS)
« Reply #3 on: August 30, 2009, 11:26:54 pm »
Mullane, Paul N. LCdr., "Sea Control", Naval Aviation News March 1972
http://www.history.navy.mil/nan/backissues/1970s/1972/mar72.pdf
« Last Edit: September 06, 2009, 12:51:35 am by Triton »

Offline Triton

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Re: Sea Control Ship (SCS) and VSTOL Support Ship (VSS)
« Reply #4 on: September 02, 2009, 01:33:55 pm »
VSTOL Support Ship (VSS) I

Specifications from U.S. Aircraft Carriers: an Illustrated Design History by Norman Friedman.

Light displacement (tons): 15,210
Full load (tons): 22,940
LOA (ft-in): ?
LWL (ft-in): 690-0
Beam (WL/EXT): 98.45/133.5
Draft (full load) (ft-in): 23.23-0
Depth (ft-in): 73.50-0
SHP: 90,000
Speed (kts): 28 sustained
CIWS: 2
Harpoon canisters: 2
Aircraft (typical embarked):
4 AV-8A (Hawker Siddeley Harrier)
6 LAMPS (Kaman SH-2 Seasprite)
16 SH-53 (Sikorsky Sea Stallion)

Flight deck dimensions (ft):655 x 133.5

Hanger height (ft): 19.0
Elevators (ft): 1 60 x 30 and 1 35 x 49.3
Capacity (lbs.): 60,000

JP-5 (tons): 1,140
AvOrd (tons): ?
LM 2500 GT: 4
SSG (GT): 5 2500

Complement
Ship (officers/ratings):30/446
Aviation: 79/402
« Last Edit: September 06, 2009, 12:51:56 am by Triton »

Offline Triton

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Re: Sea Control Ship (SCS) and VSTOL Support Ship (VSS)
« Reply #5 on: September 02, 2009, 01:49:12 pm »
VSTOL Support Ship (VSS) II

Specifications from U.S. Aircraft Carriers: an Illustrated Design History by Norman Friedman.

Light displacement (tons): 17,380
Full load (tons): 26,334
LOA (ft-in):717-0
LWL (ft-in): 690-0
Beam (WL/EXT): 105.7/166.5
Draft (full load) (ft-in): 24-5
Depth (ft-in): 77-1
SHP: 90,000
Speed (kts): ?
CIWS: 2
Harpoon canisters: 2
Aircraft (typical embarked):
4 AV-8A (Hawker Siddeley Harrier)
6 LAMPS III  
16 SH-53 (Sikorsky Sea Stallion)

Flight deck dimensions (ft):?

Hanger height (ft): 20.1
Elevators (ft): 2 45 x 45
Capacity (lbs.): 85,000

JP-5 (tons): 2,791
AvOrd (tons): 292
LM 2500 GT: 4
SSG (GT): 5 2500

Complement
Ship (officers/ratings):44/636
Aviation: 79/492
« Last Edit: September 06, 2009, 12:52:22 am by Triton »

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Re: Sea Control Ship (SCS) and VSTOL Support Ship (VSS)
« Reply #6 on: September 02, 2009, 01:54:12 pm »
VSTOL Support Ship (VSS) III

Specifications from U.S. Aircraft Carriers: an Illustrated Design History by Norman Friedman.

Light displacement (tons): 20,116
Full load (tons): 29,130
LOA (ft-in):717-0
LWL (ft-in): 690-0
Beam (WL/EXT): 109.2/178.0
Draft (full load) (ft-in): 25.3-0
Depth (ft-in): 77-1
SHP: 90,000
Speed (kts): ?
CIWS: 2
Harpoon canisters: 2

Aircraft (typical embarked):?


Flight deck dimensions (ft):?

Hanger height (ft): 20.1
Elevators (ft): 2 45 x 45
Capacity (lbs.): 85,000

JP-5 (tons): ?
AvOrd (tons): ?
LM 2500 GT: 4
SSG (GT): 5 2500

Complement
Ship (officers/ratings):49/910
Aviation: 87/541
« Last Edit: September 06, 2009, 12:52:48 am by Triton »

Offline Triton

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Re: Sea Control Ship (SCS) and VSTOL Support Ship (VSS)
« Reply #7 on: September 05, 2009, 10:47:29 pm »
From U.S. Aircraft Carriers: an Illustrated Design History by Norman Friedman.

Quote
This 325-ft SWATH ship was proposed by the David W Taylor Naval Ship Research and Development Center in 1980 to operate short takeoff, vertical landing (STOVL) fighters.

The caption says 325-ft SWATH ship, but this looks like a larger monohull design.



« Last Edit: September 09, 2009, 04:46:25 pm by Triton »

Offline Triton

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Re: Sea Control Ship (SCS) and VSTOL Support Ship (VSS)
« Reply #8 on: September 09, 2009, 04:37:30 pm »
From Jane's Fighting Ships from the late 1970s


Sea Control Ship (SCS) Design
-----------------------------
Displacement, tons: 14,300 full load
Length, feet (meters): 640 oa (195-1)
Beam, feet (meters): 80 (24-4)
Draught, feet (meters): 30 (9-1)

Aircraft:
3 VSTOL strike aircraft
14 large A/S helicopters
2 LAMPS helicopters

Catapults: none
Elevators: 2
Guns: 2--20mm CIWS
Main engines: 2 gas turbines; 40,000 shp; 1 shaft
Speed knots: approx 26


22,000 ton VSS Design
-----------------------------
Displacement, tons: 22,000 full load
Length, feet (meters): 750 oa (228-6)
Beam, feet (meters): 87 (26-5)
Draught, feet (meters): 24 (7-3)

Aircraft:
4 VSTOL strike aircraft
16 large A/S helicopters
6 LAMPS helicopters

Catapults: none
Elevators: 2
Guns: 2--20mm CIWS
Main engines: 4 gas turbines; 90,000 shp; 2 shaft
Speed knots: approx 28+


33,000 ton VSS Design
-----------------------------
Displacement, tons: 32,800 full load
Length, feet (meters): 780 oa (237-7)
Beam, feet (meters): 100 (30-5)
Draught, feet (meters): 25 (7-6)

Aircraft:

Approx 50+


Catapults: 2 C-13 steam
Elevators: 2
Guns: 2--20mm CIWS
Main engines: steam turbines; 100,000 shp; 2 shaft

Speed knots: approx 26+


The lead ship was planned for the Fiscal Year 1980 shipbuilding program with possibility of a dozen ships being constructed in a ten-year period. Congress refused to fund a VSTOL carrier known as the Sea Control Ship (SCS) that the Navy had planned for the FY 1975 shipbuilding program. This ship was opposed on the basis of limited size, capability, and speed. Accordingly, the Navy examined a number of designs that would provide a more flexible employment of sea-based tactical aircraft in a wide range of "low threat" situations as well as being able to conduct anti-submarine operations.

As of the late 1970s, the 22,000-ton VSS design was the principal candidate for this class of ship. The 33,000-ton VSS would be able to operate fixed-wing aircraft in limited numbers as well as VSTOL aircraft and helicopters.

The VSS configuration was suitable for sea control, amphibious assault, close air support, mine countermeasures, and low-intensity Anti-Air Warfare (AAW) operations. The last would be primarily against long-range reconnaissance and missile guidance aircraft, and not to counter high-performance fighter or attack aircraft. The multi-mission configuration was intended to overcome many of the objections which led to Congressional refusal to fund the smaller Sea Control Ship previously proposed by the Navy. In addition, the VSS would have had sufficient speed (approximately 28-30 knots) to accompany carrier task forces or fast merchant ships.

"Notional" air groups were indicated for the Sea Control Ship and 22,000-ton VSS design.The VSTOL strike aircraft was the AV-8A Harrier. The large ASW helicopter was the SH-3 Sea King or the CH Sea Stallion in an A/S configuration; the LAMPS (Light Airbourne Multipurpose System) was the SH-2 Sea Sprite.

A VSTOL carrier over 25,000 tons could operate a small number of conventional fixed-wing aircraft, particularly the S-3 Viking and A-7 Corsair II. These aircraft require catapults and arresting wires. The 33,000-ton VSS would have had two C-13 steam catapults and could operate an air group of 50 or more fixed-wing aircraft and helicopters.

Several advanced VSTOL aircraft were under development at the time in the United States for ship-based use, with the more promising candidates being the Hawker Siddeley-McDonnell Douglas AV-16 Advanced Harrier, the Rockwell XFV-12 Thrust-Augmented Wing (TAW) aircraft, and the Grumman "Nutcracker" design.

Cost estimates for the 22,000-ton VSS design in FY 1976 dollars averaged $270,000,000 per ship.

Multi-mission features for the VSS included being able to accommodate 500 troops in the amphibious assault contingency role for limited periods with minimum modifications.
« Last Edit: September 09, 2009, 05:03:05 pm by Triton »

Offline Triton

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Re: Sea Control Ship (SCS) and VSTOL Support Ship (VSS)
« Reply #9 on: September 09, 2009, 05:26:08 pm »
Line drawing and specifications of another VSS concept.

Offline Triton

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Re: Sea Control Ship (SCS) and VSTOL Support Ship (VSS)
« Reply #10 on: November 18, 2009, 05:26:31 pm »
Official US Navy photograph of artist's conception of V/STOL Support Ship (VSS) circa 1976.

Source: "On the Navy Horizon:", All Hands, July 1976
http://www.navy.mil/media/allhands/acrobat/ah197607.pdf

Offline Triton

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Re: Sea Control Ship (SCS) and VSTOL Support Ship (VSS)
« Reply #11 on: December 16, 2009, 12:30:28 pm »
Official US Navy artist's concept of a 12,000-ton catamaran-hull Sea Control Ship (SCS) released in 1971. The ship was expected to cost under $100 million.

(I don't know why aircraft that resemble the General Dynamics F-111B appear in this artist's concept.)

Source: "Sea-control ship" Popular Mechanics January 1972

Offline TomS

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Re: Sea Control Ship (SCS) and VSTOL Support Ship (VSS)
« Reply #12 on: December 16, 2009, 12:34:13 pm »
If you look closely, you'll see a jet blast deflector and catapult track on the flight deck.  I think this was meant to be a CTOL ship, so F-111B might have seemed plausible.
« Last Edit: December 16, 2009, 12:37:51 pm by TomS »

Offline Triton

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Re: Sea Control Ship (SCS) and VSTOL Support Ship (VSS)
« Reply #13 on: December 16, 2009, 12:42:27 pm »
If you look closely, you'll see a jet blast deflector and catapult track on the flight deck.  I think this was meant to be a CTOL ship, so F-111B would have been the "new sexy" aircraft at the time.

Sounds like the description doesn't belong with the art work, so take this artist's concept with a grain of salt. The article states "...the craft would be capable of handling VSTOL aircraft or helicopters, which require no arresting gear. It would be armed with surface-to-air missiles and its aircraft equipped with sub detection and killing gear." "Sea-control ship" Popular Mechanics January 1972 page 73.

Offline JohnR

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Re: Sea Control Ship (SCS) and VSTOL Support Ship (VSS)
« Reply #14 on: December 16, 2009, 02:07:42 pm »
What is strange about the illustration to me is that the non flight deck area, protrudes a considerable distance further forward than the marked flight deck.  I've never known of a catamaran with one hull longer than the other?