German frigate Rheinland-Pfalz (F225) vs USNS Chauvenet

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German frigate Rheinland-Pfalz (F225) — licensed reference photograph

AWarships

German frigate Rheinland-Pfalz (F225)

Credit

Bahnfrend · CC BY-SA 4.0 · Resized · CC BY-SA 4.0 · Source ↗ · Modified

BWarships

USNS Chauvenet

Chauvenet -class hydrographic survey ship

First system

Second system

At a glance

Side by side

Length comparisonOne shared metre scale

German frigate Rheinland-Pfalz (F225)Length

149.52 m

Length source ↗

USNS Chauvenetoverall

119.5388 m

Length source ↗

Lengths retain their source configuration and measurement scope.

Measured figures

Head to head

17 of 32 rows sourced on both sides

150m

120moverall

Length

All recorded figures & sources

149.52 m

Length

Single source

149.52 m (490 ft 7 in)^[source]

109 m

LBP

Single source

Configuration

Details

German frigate Rheinland-Pfalz (F225) and USNS Chauvenet configuration
Specification	German frigate Rheinland-Pfalz (F225)	USNS Chauvenet
Power	CODLAG 1 × 20 MW gas turbine 2 × 4.7 MW electric motors 4 × 2.9 MW diesel generators 3 × gearboxes : one for each shaft and one to crossconnect the gas turbine to them 2 × shafts , driving controllable pitch propellers 1 × 1 MW bow thruster^[source]	2 Alco diesels, 1,500dw electric drive, 3,600hp Westinghouse motor, 1 screw^[source]
Name	Rheinland-Pfalz^[source]	Chauvenet (1967 – 1996) Texas Clipper (II) (1996 – 2006) Pacific Collector (2006 – present)^[source]
Namesake	Rheinland-Pfalz^[source]	—
Port of registry	Hamburg , Germany^[source]

Builder	Lürssen , Wolgast Blohm+Voss , Hamburg^[source]	Upper Clyde Shipbuilding Corp. , Glasgow, Scotland^[source]

Laid down	29 January 2015^[source]	24 May 1967^[source]

Launched	24 May 2017^[source]	13 May 1968^[source]

Acquired	28 January 2022^[source]	Delivered: 13 November 1970^[source]

Commissioned	13 July 2022^[source]	—

Identification	MMSI number : 211923000 Callsign : DRAG Pennant number : F225^[source]	IMO number : 7738474 MMSI number : 367130000 Callsign : KVWA^[source]

Status	In active service^[source]	In Active Service^[source]

Class & type	Baden-Württemberg -class frigate^[source]	Chauvenet -class hydrographic survey ship^[source]

Boats & landing craft carried	Submarine ROVs 4 × 11 m (36 ft 1 in) RHIB , capable of more than 40 kn (74 km/h)^[source]	—

Capacity	Space for two 6.1 m (20 ft 0 in) containers^[source]	—

Sensors & processing systems	1 × Cassidian TRS-4D AESA radar 2(?) × navigation radars IFF diver and swimmer detection sonar (no anti-submarine sonar) Laser warning KORA-18 Combined RADAR and COMMS ESM from GEDIS Link 11 , Link 16 , Link 22 communications systems^[source]	—

Electronic warfare & decoys	TKWA/MASS (Multi Ammunition Softkill System) ECM^[source]	—

Armament	Naval guns: 1 × 127 mm lightweight Otobreda naval gun with guided VULCANO ammunition for land-attack missions (range: more than 100 km (62 mi)) 2 × 27 mm MLG 27 remote-controlled autocannons 5 × 12.7 mm Hitrole -NT remote-controlled machine gun turrets 2 × 12.7 mm heavy machine guns (manually controlled) Anti-air missiles: 2 × RAM Block II surface-to-air missile launcher/ CIWS , 21 cells each Anti-ship missiles : 8 × RGM-84 Harpoon anti-ship missiles (interim solution until joint sea/land attack missile RBS 15 MK4 becomes available) Non-Lethal: Water cannons^[source]	None^[source]

Aircraft carried	2 × NH-90 helicopters^[source]	—

Country of origin	Germany^[source]German frigate Rheinland-Pfalz (F225) · Origin cell explicitly spans the exact named-ship row in the current inventory; not inherited from a separate class specification	—

Used by	German Navy^[source]Current operator stated in the article; inventory date not specified	—

Ordered	—	19 August 1966 (contract award)^[source]

Fate	—	Converted to DOD Missile Defense Agency's Missile Instrumentation Ship MV Pacific Collector^[source]

Tonnage	—	2,890 GRT , 1,030 DWT , 4,330 NRT^[source]

Depth	—	31 ft (9.45 m) to main deck 40 ft 1.625 in (12.23 m) molded to 01 level^[source]

Source measurement	—	Chauvenet was the first Navy vessel specifically designed and built to conduct coastal hydrographic surveys. With sister ship Harkness the two were to replace the World War II transports converted to coastal survey ships Tanner (AGS-15) and Maury (AGS-16) . The ship was operated by MSC with a civilian crew under the technical direction of the Oceanographer of the Navy through the U.S. Naval Oceanographic Office (NAVOCEANO). The surveys were conducted by a complement of military and civilian surveyors. The ship embarked four 36 ft (11.0 m) launches, two helicopters, chart production and printing equipment, the Navy/civilian survey detachment and a Navy Sea Bee coastal survey team with landing and shore vehicles. Survey operations, under NAVOCEANO's Hydrographic Surveys Department, were conducted by the United States Navy's (USN) Oceanographic Survey Unit 4 (OCUNIT4). United States Navy units aboard consisted of a helicopter detachment, a detachment of Seabees as well as several other Navy departments supporting survey missions.^[source]USNS Chauvenet · Navy coastal surveys; only the objects and conditions stated in this passage The ship, primarily assigned to the Pacific, was equipped with an early shipboard data acquisition and processing system designated the Hydrographic Data Acquisition System (HYDAS) based on the PDP-9 computer. The identical system was installed aboard Harkness . Similar systems were installed on Sgt. George D Keathley (T-AGS-35) and Kellar (T-AGS-25) . One computer was dedicated to real time collection of survey data and another to processing the data for making nautical charts or being a backup for the real time data collection in event of failure of that computer. A real time navigation plot was generated on a flatbed plotter. The processing computer processed data collected by the ship and the sounding launches which had an associated data collection system designated HYSURCH for hydrographic survey and charting system. The launches themselves were 36 foot fiber glass, diesel powered, "sports sedans" capable of 30 kn (35 mph; 56 km/h) smooth water speed and modified for survey operation.^[source]USNS Chauvenet · Navy coastal surveys; only the objects and conditions stated in this passage Chauvenet grounded two hours before midnight 8 May 1982 on Dauisan Reef ( 09°47′0″N 121°13′30″W / 9.78333°N 121.22500°W / 9.78333; -121.22500 ) in the Sulu Sea while transiting from Subic Bay to survey areas in Indonesia. Damage was considerable with flooding of several spaces. Navy salvage operations based aboard Brunswick (ATS-3) over two weeks refloated the ship for temporary repairs at the Ship Repair Facility at Subic before being towed to Sasebo , Japan for permanent repairs.^[source]USNS Chauvenet · Navy coastal surveys; only the objects and conditions stated in this passage

Source measurement

—

Chauvenet was the first Navy vessel specifically designed and built to conduct coastal hydrographic surveys. With sister ship Harkness the two were to replace the World War II transports converted to coastal survey ships Tanner (AGS-15) and Maury (AGS-16) . The ship was operated by MSC with a civilian crew under the technical direction of the Oceanographer of the Navy through the U.S. Naval Oceanographic Office (NAVOCEANO). The surveys were conducted by a complement of military and civilian surveyors. The ship embarked four 36 ft (11.0 m) launches, two helicopters, chart production and printing equipment, the Navy/civilian survey detachment and a Navy Sea Bee coastal survey team with landing and shore vehicles. Survey operations, under NAVOCEANO's Hydrographic Surveys Department, were conducted by the United States Navy's (USN) Oceanographic Survey Unit 4 (OCUNIT4). United States Navy units aboard consisted of a helicopter detachment, a detachment of Seabees as well as several other Navy departments supporting survey missions.^[source]USNS Chauvenet · Navy coastal surveys; only the objects and conditions stated in this passage

The ship, primarily assigned to the Pacific, was equipped with an early shipboard data acquisition and processing system designated the Hydrographic Data Acquisition System (HYDAS) based on the PDP-9 computer. The identical system was installed aboard Harkness . Similar systems were installed on Sgt. George D Keathley (T-AGS-35) and Kellar (T-AGS-25) . One computer was dedicated to real time collection of survey data and another to processing the data for making nautical charts or being a backup for the real time data collection in event of failure of that computer. A real time navigation plot was generated on a flatbed plotter. The processing computer processed data collected by the ship and the sounding launches which had an associated data collection system designated HYSURCH for hydrographic survey and charting system. The launches themselves were 36 foot fiber glass, diesel powered, "sports sedans" capable of 30 kn (35 mph; 56 km/h) smooth water speed and modified for survey operation.^[source]USNS Chauvenet · Navy coastal surveys; only the objects and conditions stated in this passage

Chauvenet grounded two hours before midnight 8 May 1982 on Dauisan Reef ( 09°47′0″N 121°13′30″W / 9.78333°N 121.22500°W / 9.78333; -121.22500 ) in the Sulu Sea while transiting from Subic Bay to survey areas in Indonesia. Damage was considerable with flooding of several spaces. Navy salvage operations based aboard Brunswick (ATS-3) over two weeks refloated the ship for temporary repairs at the Ship Repair Facility at Subic before being towed to Sasebo , Japan for permanent repairs.^[source]USNS Chauvenet · Navy coastal surveys; only the objects and conditions stated in this passage