Theoretical performance of a NH3/L-fuelled sea control ship (SCS) in 1975

American Sea Control Ship mid 1970s design

Smaller air-capable sea control ship designed to operate helicopters and V/STOL aircraft. Fuel weight 1,306 LT. Dimensions 612.5 x 79.0 x 22.6 x 52.9 (freeboard) feet. Range 5,200 (at 30 knots)-2,400 (at 50 knots) nautical miles.

Performance of a representative DFM-fuelled sea control ship (SCS) in 1975. Smaller air-capable sea control ship designed to operate helicopters and V/STOL aircraft, displacement light 14,000 tons. Dimensions 612 (waterline) x 78.9 (waterline) x 22.6 (ship draft) x 52.8 (ship freeboard) feet. Propulsion 1 screw. Horsepower 40,000 hp. Maximum speed 27 knots. DFM fuel weight 1,320 LT. Cruising speed 20 knots. Range at cruising speed 12,000 nautical miles based on 10 percent fuel reserve rounded to nearest 50 nautical miles.

Sea control ship (SCS) general applicable for the next specific warfare areas:

ASMD=self protection against anti-ship missiles

ASW (P)=force protection against subsurface threats

AAW=fore attribution of airborne threats

ASUW=warfare against surface ship threats

ARW=strike warfare using carrier-based tactical air

EW=electronic warfare

CAC=command, control and communication

CDS=combat direction systems

SURV=surveillance

MIW=mine warfare

SPW=special warfare

 

Principal mission characteristics

Mission: sea control task force defense

Duration in day: 24.6

Range in nautical miles: 12,1000

Mission description: escort of task force to/from operation area. Five days in operation area. Continuous VSTOL and ASW helo stations maintained in transit and op area

 

Ship operational parameters

Days in transit: 19.6

Transit day profile hours: 8

Transit day profile in knots: 24

Transit day profile in nautical miles: 192

Days in op area: 5?

Op area day profile in hours: 4

Op area day profile in knots: 24

Op area day profile in nautical miles: 9

Total time at speed in hours: 312

Total time at speed in knots: 24

 

Ship operational parameters

Days in transit:

Transit day profile hours: 16

Transit day profile in knots: 20

Transit day profile in nautical miles: 320

Days in op area: 5

Op area day profile in hours: 20

Op area day profile in knots: 16

Op area day profile in nautical miles:320

Total time at speed in hours: 100

Total time at speed in knots: 16

Number of embarked aircraft: 10 VSTOL-10 Helo ASW

Sorties per aircraft-day: 2.0 both types

Hours per sortie: VSTOL 1.44-Helo 4.0

Number of aircraft flying per day transit: VSTOL 9-Helo 6

Number of aircraft flying per day op area: VSTOL 9-Helo 3

Source

Hydrogen. Hearings before the subcommittee of energy research, development and demonstration of the committee on science and technology U.S. House of Representatives. Ninety-fourth congress, first session June 10 and 12, 1975, p. 1027 and further. 

Irish patrol vessel (ex-HMS Swallow P242 1984-1988) Lé Ciara P42 1988-2022 (2024)

Schelde, Netherlands 25 April 2024 underway towards scrapyard Ghent, Belgium

Ireland-flagged, IMO 8119326, MMSI 250104000 and call sign EIYT. eacock-class preceded by Castle-class succeeded by British River-class and Irish Róisín-class, to serve in the British Royal Navy at Hong Kong, launched by Hall Russell&Company, Aberdeen, Scotland with yard number 991 on 30/31 March 1984, completed on 17 October 1984, sold to Ireland in 1988, commissioned on 16 January 1989, decommissioned on 8 July 2022 and sent to the scrapyard in April 2024. 

Shipbuilding, docking and repair facilities at Osaka Iron Works, Sakurajima, Japan in February 1937

In his rapport dealing with the Japanese shipbuilding capacity dated 15 February 1937 No.22 file 409-600 the naval attache dealt with naval and merchant shipyards able to built ships larger as 1,000 tons.

Building ways (length in feet on land: No. 1-305, No. 2-600, No. 3-558, No. 4-505 and No. 5-507

Drydocks (length in feet, top): No. 1-684, wood.

%Maximum capacity annual of naval vessels in tons-peacetime conditions: 130,000.

%=Capacities in tons displacement derived from the time required to built battleships 3 years, cruisers 2.5 year and destroyers and submarines 1-1.5 years.

Source

National Archives USA. Record Group 38: Records of the Office of the Chief of Naval Operations. Series: Secret Naval Attaches Reports. Report of the Naval Attache Tokyo dated 21 January 1937 No. 12 subject Japanese Navy Vessels Built, Building or Authorized. Information of 1 January. M975-002.

German batlehsips Gneisenau and Schlesien seemed to be in the eastern Baltic area according to the U.S. Joint Intelligence Committee. Daily summary dated 16 April 1942

Leipzig. Warshipsresearch.blogspot.com

Schlesien. Warshipsresearch.blogspot.com

An item reported that the German battleship Gneisenau (1) which left Kiel, Germany between 29 March-12 April with an unknown destination was gone to the eastern Baltic area. The aged battleship Schlesien (2) and the light cruiser Leipzig (3) seemed to be there also.

Notes

1. Of Scharnhorst-class preceded by planned L20e α-class and realized Bayern-class preceded by Bismarck-class, laid down by Deutsche Werke, Kiel, Germany on 6 May 1935, launched on 8 December 1936, commissioned on 21 May 1938, decommissioned on 1 July 1942, scuttled as block ship on 23 March 1945 and broken up in 1951.

2. Part of Deutschland-pre dreadnoughts  preceded by Braunschweig-class succeeded by Nassau-class, ordered under contract name “R” on 11 June 1904, laid down by Schichau, Danzig, Germany on 19 November 1904, launched on 28 May 1906, commissioned on 5 May 1908, decommissioned on 1 December 1918, modernized mid-1920s, recommisioned on 1 March 1927, mined off Swinemünde on 3 May 1945 and broken up between 1949-1956.

3. Part of Leipzig-class light cruisers preceded by Königsberg-class succeeed by planned M-class cruiser, laid down at Rechsmarinewerft, Wilhelmshaven, Germany on 28 April 1928, launched on 18 October 1929, commissioned on 8 October 1931, barracks for minesweepers in 1945 and scuttled in 1946.

Source

Map Room Papers (Roosevelt Administration), 1942 - 1945. U.S. Joint Intelligence Committee. Daily summary No. 127 dated 16 April 1942. 

Irish patrol vessel (ex-HMS Swift P243 1984-1988) Lé Orla P 41 1988-2022 (2024)

Schelde, Netherlands 25 April 2024 underway towards scrapyard Ghent, Belgium

Ireland-flagged, MMSI 250103000 and call sign EIYQ. Peacock-class preceded by Castle-class succeeded by British River-class and Irish Róisín-class, to serve in the British Royal Navy at Hong Kong, laid down by Hall Russell&Company, Aberdeen, Scotland in 1984, launched on 11 September 1984, purchased by Ireland, commissioned on 19 January 1989, decommissioned on 8 July 2022 and sent to the scrapyard at Ghent, Belgium in April 2024.

German battleship Tirpitz and other major units still berthed in Norwegian Trondheim Fjord according to the U.S. Joint Intelligence Committee. Daily summary dated 14 April 1942

U.S. Naval History and Heritage Command, MH 71390.

 Tirpitz anchored in the Alta Fjord, Norway between 1943-1944

Admiral Scheer

Admiral Hipper. Werft-Reederei-Hafen 1939

An item reported that on 13 April the German battleship Tirpitz (1), the pocket battleship Admiral Scheer (2) and the heavy cruisers Prinz Eugen (3) and Hipper (4) still were lying on the usual berths in the Trondheim Fjord, Norway. The location of the battleship Gneisenau (5) was since 29 March when she was at Kiel, Germany unknown.

Notes

1. Laid down by Kriegsmarinewerft Wilhelmshaven, Germany on 2 November 1936, launched on 1 April 1939, commissioned on 25 February 1941 and sunk by the Royal Air Force on 12 November 1944 at Tromsø, Norway, with her wreck broken up between 1948-1957. Of the Bismarck-class as answer on the French Richelieu-class battleships preceded by Scharnhorst-class succeeded by planned H-class. 

2. Of the Deutschland-class panzerschiffe later classified as heavy cruisers preceded by the Admiral Hipper-class. Main armament 2x3-28cm/11” guns on fore and aft ship one turret. Laid down by Kriegsmarinewerft Wilhelmshaven, Germany on 25 June 1931, launched on 1 April 1933, commissioned on 12 November 1934, sunk during an air attack at Kiel, Germany on 9 April 1945, partly broken up and the remains used of filling up the inner part of the dockyard. 

3. Of the Admiral Hipper-class heavy cruisers, preceded by Deutschland-class. Laid down by Germaniawerft, Kiel on 23 April 1936, launched on 22 August 1938, commissioned on 1 August 1940, decommissioned on 7 May 1945, surrendered on 8 May 1945, handed over to the USA and sunk on 22 December 1946 during nuclear tests.

4. Of Admiral Hipper-class heavy cruisers, preceded by Deutschland-class, succeeded by the planned P-class, laid down by Blohm&Voss, Hamburg, Germany on 6 July 1935, launched on 6 February 1937, commissioned on 29 April 1939, scuttled on 3 May 1945 and between 1948-1952 salvaged and broken up.

5. Of Scharnhorst-class preceded by planned L20e α-class and realized Bayern-class preceded by Bismarck-class, laid down by Deutsche Werke, Kiel, Germany on 6 May 1935, launched on 8 December 1936, commissioned on 21 May 1938, decommissioned on 1 July 1942, scuttled as block ship on 23 March 1945 and broken up in 1951.

Source

Map Room Papers (Roosevelt Administration), 1942 - 1945. U.S. Joint Intelligence Committee. Daily summary No. 125 dated 14 April 1942

Enemy submarine active off Brazilian coast according to the U.S. Joint Intelligence Committee. Daily summary dated 14 April 1942

An item reported that one or even more enemy submarines were active off the Brazilian north coast especially in the Parnahyba area and in the past week sunk or damaged at least four ships. In the Caribbean area were no attacks reported and north of that area in the western Atlantic theatre was the number of enemy submarines unchanged.

Source

Map Room Papers (Roosevelt Administration), 1942 - 1945. U.S. Joint Intelligence Committee. Daily summary No. 125 dated 14 April 1942

German sailing cargo ship Vrouwe Teuntje 1897-

Leer, Germany 17 September 2023

Originally cutter rigged, later fitted out with an engine. Dutch inland clipper built at Ruitenberg Werft, Waspik, Boven, Netherlands in 1897. Former names Vadder Gerrit II, Vrouwe Anna, George, Yvone, Breydel, Josephine and Albert.

Two-mast flat bottom clipper Dutch Princess (1902)

Leer, Germany 17 September 2023

Germany-flagged, homeport Leer, in 2024 for sale in the Netherlands. Built in 1902 and in 1997 using her casco completely rebuilt. Registration 32501718 NL. 

Russian merchant ship ss Dvina active in the Pacific on 1 July 1944

A report from Op-16-FT, Washington, USA dated 1 July 1944 serial FT-49-44 described all Soviet merchant ships active in the Pacific. On 15 June 1944 were 207 Russian merchant ships with a total gross tonnage of 891,591 tons active in transpacific and coastal waters.This number included for instance 36 Liberty ships. 70% or 627,649 gross tons participated in regular transpacific traffic destinated for Siberian harbors and 95 vessels or 264.942 gross tons in the coastal waters. The 207 vessels excluded 7 icebreakers.

Gross tonnage 1,773 tons. Type freighter. Built in 1922. Speed 7 knots. Fuel coal. International call sign UOAM. Service coastal.

Source

Map Room Papers (Roosevelt Administration), 1942 - 1945. MR450(7) Sec 2 Location of Russian Ships, 1942-1945

Russian merchant ship mv Donbass active in the Pacific on 1 July 1944

A report from Op-16-FT, Washington, USA dated 1 July 1944 serial FT-49-44 described all Soviet merchant ships active in the Pacific. On 15 June 1944 were 207 Russian merchant ships with a total gross tonnage of 891,591 tons active in transpacific and coastal waters.This number included for instance 36 Liberty ships. 70% or 627,649 gross tons participated in regular transpacific traffic destinated for Siberian harbors and 95 vessels or 264.942 gross tons in the coastal waters. The 207 vessels excluded 7 icebreakers.

Gross tonnage 7,302 tons. Type tanker. Built in 1941. Speed 11.5 knots. Fuel oil. International call sign UPTE. Service transpacific. Remarks lend-lease.

Source

Map Room Papers (Roosevelt Administration), 1942 - 1945. MR450(7) Sec 2 Location of Russian Ships, 1942-1945

Panamanian ordnance clearance vessel (ex-Eisha 1958-2012) Duo 2012-

Leer, Germany 17 September 2023

Panama-flagged, homeport Panama, IMO 5099202, MMSI 372873000 and call sign HP4964. Renamed June 2012. Operator Duo Surveys Ltd., Pamama. Built as fishing vessel by Elbewerft Boizenburg, Boizenburg, East Germany in 1958. 

American whaler Clement visited Honolulu, Hawaii according to the newspaper The Polynesian dated 16 November 1850

An item reported that at Honolulu, Hawaii on 11 November the American whaler Clement master Lane was cleared for New London

French whaler Salamandre visited Honolulu, Hawaii according to the newspaper The Polynesian dated 16 November 1850

An item reported that at Honolulu, Hawaii on 9 November the French whaler Salamandre master Gueden was cleared for Le Havre, France

Japanese cargo ship Hako Maru 1923-

Similar to the Haruna Maru-Manko Maru-Titibu Maru. Call sign JNCA. Built by Yokohama Dock Co., Yokohama, Japan in 1923. Gross tonnage 1,504 tons, under deck 1,159 tons, net tonnage 815 tons, deadweight 1,682 tons and as dimensions 250.0 x 37.0 x 19.0 x 9 (light)-17 (loaded) feet. Reciprocating propulsion, single screw, 126 nhp, coal bunker capacity 350 tons, fuel oil capacity 289 tons, range 11,000 nautical miles/10 knots and speed 10 (normal cruising)-11 (maximum) knots. Refrigerating ship.

French privateer la Sainte Catherine 1688

Homeport Dunkirk. Master Pierre Blanckinker. Measurement 16 tons.

Source

H. Malo Les Corsaires dunkerquois et Jean Bart, vol. 2.

French privateer le Saint Jean 1696

Homeport Dunkirk. Master Jean Blanckinker. Measurement 30 tons. Armament 2 guns 4 swivels.

Source

H. Malo Les Corsaires dunkerquois et Jean Bart, vol. 2.

Dutch tug Simon 2009-

Den Oever, Netherlands 21 April 2024

Netherlands-flagged, homeport Wieringen, ENI 02333055, MMSI 244770402 and call sign PI2043. Built by N. Dijkstra Jachtservice BV, Harlingen, Netherlands with yard number 352 in 2009. Dimensions 12.35 x 5.13 x 1.50 metres. 

Theoretical performance of a MMA-fuelled medium sized aircraft carrier (CVX) in 1975

Fuel weight 3,650 LT. Dimensions 902.0 x 114.0 x 32.8 x 58.9 (freeboard) feet. Range 9,900 (at 30 knots)-3,050 (at 50 knots) nautical miles.

Performance of a representative DFM-fuelled medium sized aircraft carrier (CVX) in 1975. Designed to operate as high performance aircraft, displacement 55,000 light tons and as dimensions 902 (waterline) x 114 (waterline) x 32.8 (ship draft) x 58.9 (ship freeboard) feet. Propulsion 4 screws. Horsepower 200,000 hp. Maximum speed 31 knots. DFM fuel weight 3,650 LT. Cruising speed 20 knots. Range at cruising speed 11,950 nautical miles based on 10 percent fuel reserve rounded to nearest 50 nautical miles.

Medium Sized Aircraft Carrier (CVX) general applicable for the next specific warfare areas:

ASMD=self protection against anti-ship missiles

ASW (P)=force protection against subsurface threats

AAW=force attribution of airborne threats

ASUW=warfare against surface ship threats

ARW=strike warfare using carrier-based tactical air

EW=electronic warfare

CAC=command, control and communication

CDS=combat direction systems

SURV=surveillance

MIW=mine warfare

MLS=mobile logistic support for sea-based forces

SPW=special warfare

Principal mission characteristics

Mission: sea control multi-threat enagagement projection tactical air strikes

Duration in day: 24.2

Range in nautical miles: 12,100

Mission description: transit to/from op area using aircraft in sea contol role. Five days in op area conducting tactical air strikes.

Ship operational parameters

Days in transit:

Transit day profile hours: 16

Transit day profile in knots: 20

Transit day profile in nautical miles: 320

Days in op area:

Op area day profile in hours: 20

Op area day profile in knots: 16

Op area day profile in nautical miles: 320

Total time at speed in hours: 100

Total time at speed in knots: 16

Ship operational parameters

Days in transit: 19.2

Transit day profile hours: 8

Transit day profile in knots: 25

Transit day profile in nautical miles: 200

Days in op area: 5

Op area day profile in hours: 4

Op area day profile in knots: 25

Op area day profile in nautical miles: 100

Total time at speed in hours: 308

Total time at speed in knots: 20

Number of embarked aircraft: 12

Sorties per aircraft-day: 1.5

Hours per sortie: 3.0

Number of aircraft flying per day transit: 12

Number of aircraft flying per day op area: 6

 

Number of embarked aircraft: 12 attack

Sorties per aircraft-day: 2.3

Hours per sortie: 2.9

Number of aircraft flying per day transit: 4

Number of aircraft flying per day op area: 12

 

Number of embarked aircraft: 12 fixed wing ASW

Sorties per aircraft-day: 1.5

Hours per sortie: 5.0

Number of aircraft flying per day transit: 12

Number of aircraft flying per day op area: 4

 

Number of embarked aircraft: 8 Helo ASW

Sorties per aircraft-day: 2.0

Hours per sortie: 4.0

Number of aircraft flying per day transit: 6

Number of aircraft flying per day op area: 3

 

Number of embarked aircraft: 4 early warning

Sorties per aircraft-day: 1.5

Hours per sortie: 6.0

Number of aircraft flying per day transit: 3

Number of aircraft flying per day op area: 3

 

Number of embarked aircraft: 2 electronic warfare

Sorties per aircraft-day: 1.5

Hours per sortie: 2.5

Number of aircraft flying per day transit: 1

Number of aircraft flying per day op area: 1

 

Number of embarked aircraft: 2 reconnaissance

Sorties per aircraft-day: 1.5

Hours per sortie: 2.5

Number of aircraft flying per day transit: 1

Number of aircraft flying per day op area: 1

Number of embarked aircraft: 4 helo resuce

Sorties per aircraft-day: 2.0

Hours per sortie: 3.0

Number of aircraft flying per day transit: 2

Number of aircraft flying per day op area: 2

Number of embarked aircraft: 4 tankers

Source

Hydrogen. Hearings before the subcommittee of energy research, development and demonstration of the committee on science and technology U.S. House of Representatives. Ninety-fourth congress, first session June 10 and 12, 1975, p. 1027 and further. 

British vivier potter (ex-Eyrun 1990-2000) Sparkling Line WY-43 2000-

Den Oever, Netherlands 21 April 2024

United Kingdom-flagged, MMSI 235040121 and call sign MOMW3. Owner Keristtrum Ltd., Scotland. Built by Macduff Boatbuilding&Engineering Co.., Macduff, Scotland in 1990. 

American whaler John and Edward visited Hilo, Hawaii according to the newspaper The Polynesian dated 30 October 1852

Biodiversity Heritage Library

An item reported the arrival at Hilo, Hawaii on 11 August of the American whaler John and Edward master Cathcart 130 barrels sperm oil 180 barrels whale oil 2,500 lbs bone. 

American whaler Mechanic visited Hilo, Hawaii according to the newspaper The Polynesian dated 30 October 1852

An item reported the arrival at Hilo, Hawaii on 12 September of the American whaler Mechanic master Corey 200 barrels whale oil 2,000 lbs bone 

Norwegian general cargo ship (ex-MB Humber 1992-1997, Arklow Fortune 1997-2005) Bimi 2005-

Schelde off Vlissingen, Netherlands 19 April 2019

Norway-flagged, homeport Bergen, IMO 8914295, MMSI 258681000 and call sign LAXO7. Built by Ferus Smit Scheepswerf, Hoogezand, Netherlands in 1992. Owner/manager Misje Rederi AS, Bergen, Norway. 

Portuguese urca Sao Francisco 1618

Outward bound 1618. Part of feet of D. Cristovao de Noronha captain D. Luiz de Menezes.

Source

Ignacio de Costa Quintella. Annaes de Marinha Portugueza, vol 2. 

Portuguese urca Sao Sebastiao 1618

Outward bound in 1618. Part of fleet of D. Cristovao de Noronha captain Manoel Ribeirom captured by British?

Source

Ignacio de Costa Quintella. Annaes de Marinha Portugueza, vol 2. 

Dutch shrimp cutter Rein Willem (WR212) 2017-

Den Oever, Netherlands 21 April 2024

Netherlands-flagged, IMO 9853802, MMSI 244170098 and call sign PDIK. Casco built by Gebr. Buijs Scheepsbouws, Stormpolderdijk, Krimpen aan den Ijssel, Netherlands and completed by Luytgroep BV, Den Oever, Netherlands

Catch results of the Dutch Greenland commandeur Gerrebrand van de Velde according to the Dutch newspaper Oprechte Haerlemsche courant dated 13 August 1697

An item dated dated Amsterdam, Netherlands 12 August referred to a Greenland whaler who departed from the ice on 20 July and reported the catch results of the Dutch Greenland commandeur Gerrebrand van de Velde 5 whales. 

Catch results of the Dutch Greenland commandeur Jan Dirckse van de Velde according to the Dutch newspaper Oprechte Haerlemsche courant dated 13 August 1697

An item dated dated Amsterdam, Netherlands 12 August referred to a Greenland whaler who departed from the ice on 20 July and reported the catch results of the Dutch Greenland commandeur Jan Dirckse van de Velde on 15 June 8 whales. 

Chinese heavy load carrier Zhen Hua 33 2017-

Schelde off Vlissingen, Netherlands 17 April 2024

China-flagged, homeport Shanghai, IMO 9808223, MMSI 414272000 and call sign BTTR. Built by Shanghai Zhenhua Heavy Industries Qidong Marine Engineering Co Ltd - Shanghai, China in 2017. Manager Shanghai Zhenhua Shipping Co, Shanghai, China and owner Cosco Shipping Specialized Carriers Co Ltd, Guangzhou, China. 

French privateer les Armes de Dunkerque 1688

Homeport Dunkirk. Master Jean Blanckeman. Measurement 130 tons.

Source

H. Malo Les Corsaires dunkerquois et Jean Bart, vol. 2.

French privateer le Dauphin 1676

Homeport Dunkirk. Master Jean Blanckeman. Measurement 35 tons.

Source

H. Malo Les Corsaires dunkerquois et Jean Bart, vol. 2.

Norwegian offshore support vessel (ex-Far Sentinel 2015-2020) Normand Sentinel 2020-

Schelde off Vlissingen, Netherlands 18 April 2024

Norway International Register-flagged, homeport Skudeneshavn IMO 9707716, MMSI 257883000 and call sign LASC7. Built by Vard Langsten, Tomrefjord, Norway in 2015. Owner/manager Solstad Shipping AS, Skudeneshavn, Norway.