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HMS Tracker

HMS Tracker

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HMS Tracker

HMS Tracker was an Attacker class escort carrier that was one of the few members of her class to be used extensively on convoy escort duties, before spending the first part of 1945 acting as a ferry carrier for the US Navy. She was built by the Seattle-Tacoma Shipbuilding Corp, was launched in March 1942 and completed in January 1943, sailing around the US coast to reach the east coast by April.


In April 1943 the Tracker was used by No.845 Squadron for deck landing training off Quonset Point (Rhode Island). On 30 April she left New York to ferry USAAF aircraft to North Africa, and by July had reached a British port.

In the third quarter of 1943 the Tracker escorted two convoys as the only carrier (including HX.258) and one with the Biter. On 6 November, while escorting a convoy across the Atlantic, aircraft from the Tracker helped HM sloops Woodcock and Starling sink U-226.


At the start of 1944 the Tracker was used to escort Gibraltar convoys.

On 16 February Biter and Tracker were escorting convoy OS.68 when it was attacked by Ju.290s armed with glide bombs. The Tracker was able to direct a Coastal Command Beaufighter onto one Ju.290, while Wildcats from the Biter shot the engine off a second, forcing it to crash into the sea.

In March-April 1944 the Tracker escorted Russian convoys, claiming two U-boats at the start of April. On 1 April U-355 was sunk by aircraft from No.826 Squadron somewhere to the south of Bear Island, while on 3 April aircraft from No.826 along with aircraft from No.819 Squadron on Activity sank U-288 in the Barents Sea.

In June 1944 Pursuer, Tracker and Emperor provided fighter cover for support groups operating in the south west approaches, protecting the D-Day fleets against the threat of U-boat attack from the French Atlantic ports.

During the period May-July 1944 the Tracker was one of six escort carriers (Vindex, Nairana, Biter, Striker, Emperor and Tracker) that spent a total of 58 days at sea performing normal anti-submarine activities alongside the A/S Escort Groups, which spend much of this period protecting the flanks of the D-Day landings.

On 3 June 1944 the Tracker was damaged in a collision. No.846 Squadron was taken off while the carrier was repaired, and was replaced by No.853 Squadron in September 1944. Tracker, Nairana and Vindex were used to escort the outbound Russian convoy JW.61, which arrived safely on 22 Octo, and then the home-bound convoy RA.61, which reached home ports safely on 8 November.


Early in 1945 the Tracker was one of a number of British escort carriers lend to the US Navy, where they served as ferry carriers, moving US Naval aircraft but with British crews. In July 1945 the Tracker was returned to Royal Navy control.

The Tracker was returned to the US Navy in November 1945 and sold as a merchantman.


No.816 Squadron embarked on Tracker for North Atlantic convoy duty and disembarked early in 1944.

No.845 NAS

No.845 Squadron was onboard for deck landing training in April 1943.

No.846 NAS

No.846 Squadron embarked on Tracker on 4 January 1944 with its Avengers and Wildcats and remained with her until she was damaged in a collision on 3 June 1944.

No.853 NAS

No.853 Squadron embarked on Tracker with its Avenger IIs and Wildcat VIs on 12 September 1944, and transferred to HMS Queen on 27 January 1945.

Displacement (loaded)

10,200t standard
14,170t deep load

Top Speed




491ft 7in to 496ft 1in oa


18-24 aircraft
Two 4in/50 US Mk 9 guns in one two-gun mounting
Eight 40mm Bofors guns in four two-gun mountings

Crew complement



7 March 1942


31 January 1943

Returned to US

November 1945

HMS Tracker (P274)

From Wikipedia the free encyclopedia

    : P274 : 235009960 : GCUU
  • 25 kn (46 km/h)
  • 45 kn (83 km/h) (Hull design, but limited due to engine fitted)
  • 1 × Oerlikon 20 mm cannon on fo'c'sle ("for but not with")
  • 3 × General purpose machine guns

HMS Tracker is an Archer-class (P2000) patrol and training vessel of the British Royal Navy. Ώ] ΐ] Along with the batch 2 Archer class, HMS Raider, Tracker is part of the Faslane Patrol Boat Squadron based at HMNB Clyde.

HMS Tracker (D24)

HMS Tracker (D24) là một tàu sân bay hộ tống thuộc lớp Bogue chế tạo tại Hoa Kỳ, được chuyển cho Hải quân Hoàng gia Anh Quốc, và đã phục vụ trong Chiến tranh Thế giới thứ hai như một chiếc thuộc lớp Attacker.

Nguyên được dự định như một tàu vận tải thay thế thứ hai mang tên Mormacmail dành cho hãng Moore-McCormack Lines, Inc., nó được chế tạo theo hợp đồng với Ủy ban Hàng hải Hoa Kỳ tại xưởng đóng tàu của hãng Seattle-Tacoma Shipbuilding ở Tacoma, Washington. Tuy nhiên, trước khi hoàn tất, nó được Hải quân Hoa Kỳ sở hữu và đặt số hiệu BAVG-6, rồi được cải biến tại hãng Willamette Iron & Steel ở Portland, Oregon thành một tàu sân bay hộ tống. Khi hoàn tất vào đầu năm 1943, nó được chuyển cho Anh Quốc theo chương trình Cho thuê-cho mượn, và được đặt tên HMS Tracker (D24).

Tracker phục vụ trong vai trò hộ tống vận tải trong giai đoạn 1943 - 1944 ở chiến trường Bắc Đại Tây Dương và tại biển Bắc Cực. Thoạt tiên nó mang theo máy bay Swordfish và Seafire thuộc Phi đội 813 và đến tháng 1 năm 1944 chuyển sang Avenger và Wildcat thuộc Phi đội 846. Vào tháng 4 năm 1944, máy bay của nó cùng với lực lượng của Activity đã đánh chìm tàu ngầm U-boat Đức U-288 khi hộ tống đoàn tàu vận tải JW-58.

Vào ngày 10 tháng 6 năm 1944, đang khi hoạt động trong thành phần bảo vệ chống tàu ngầm hỗ trợ cho cuộc đổ bộ Normandy, Tracker bị tai nạn va chạm với tàu frigate Canada lớp River HMCS Teme, khiến cả hai đều bị hư hại. Nó tiếp tục hoạt động với một mũi tàu bị thủng cho đến ngày 12 tháng 6 năm 1944, và sau đó được sửa chữa và tái trang bị một phần tại Liverpool cho đến ngày 7 tháng 9 năm 1944. Vào ngày 8 tháng 12 năm 1944, chiếc tàu sân bay lên đường sang Hoa Kỳ hoạt động như một tàu vận chuyển máy bay, và trải qua thời gian còn lại của cuộc chiến vận chuyển máy bay và nhân sự tại Mặt trận Thái Bình Dương.

Đến tháng 8 năm 1945, nó thực hiện chuyến đi cuối cùng đến Anh Quốc, rồi được hoàn trả cho Hoa Kỳ vào tháng 11 năm 1945. Nó được bán vào tháng 11 năm 1946 để cải biến cho hoạt động hàng hải dân sự dưới tên gọi Corrientes, đặt cảng nhà tại Argentina. Nó bị tháo dỡ vào năm 1964.


The track ( ger .: spur ) was a boat of the fourth construction lot of the successful S-Class . This lot is also known as the Subtle class . She was laid down on October 1, 1943 at Cammell Laird in Birkenhead, northwest England , launched on November 17, 1944 and was put into service by the Royal Navy on February 18, 1945.

The submarine was used in the final phase of the Second World War in the Pacific theater of war. The commander of the boat Lt. PS Beale reported the sinking of 11 junks in Malakka Street between August 3 and 23, 1945 . The small, unarmed sailing ships were sunk with the deck gun or explosive charges.

The HMS Spur was sold to Portugal in November 1948. The Portuguese Navy used it for about 20 years under the name Narval (S160) . The submarine was decommissioned in 1969.

Tracker history¶

List less than or equal to limit of tracker events filtered by event types ( events ) between from date/time and to date/time sorted by time field.


name description type
trackers List of tracker's ids. int array
from Start date/time for searching. string date/time
to End date/time for searching. Must be after "from" date. string date/time
events Optional. Default: all. List of history types. string array
limit Optional. Default: history.maxLimit. Max count of entries in result. int
ascending Optional. Default: true . Sort ascending by time when it is true and descending when false . boolean

If events (event types) not passed then list all event types.

Available event types can be obtained by /history/type/list action.

Default and max limit is 1000. (Note for StandAlone: this value configured by maxHistoryLimit config option).

Which Soviet submarine was HMS Splendid tracking on 30th March 1982?

In 'Vulcan 607', R. White describes the background of the submarines that headed to the Falkland Islands. For the HMS Splendid, he notes that the submarine, under CO Lane-Nott was engaged in a mission to track a Soviet submarine off Scotland with the assistance of the RAF and its Nimrod project. In the middle of this pursuit, the Splendid received an Admiralty signal telling it to return to Faslane where it took on supplies and headed to the Falkland Islands. Is the identity of this Soviet submarine known? What was its mission (if it had a specific one)?

The book describes Lane-Nott as believing it to have been a previously unseen Soviet submarine type:

Splendid had been at sea continuously now for nearly three months. But the success or failure of the patrol had been distilled into the last forty minutes. For sixteen hours she’d been vectored into position by RAF Nimrods. Intelligence from the RAF patrol planes would be sent back to Northwood HQ then on to Splendid via ‘the broadcast’, a very-low-frequency transmission sent from an aerial in Northamptonshire. The reports could be received at any depth just thirteen minutes after first being made by the RAF. .

To minimize noise from her screws and maximize the value of the intelligence he was gathering, Lane-Nott followed silently between a mile and a half and two miles to port and aft of the Soviet boat. .

. Lane-Nott felt energized that he’d found his quarry so quickly. Now there was no need to rush things. A nuclear submarine had endurance to burn. As long as his sonar operators maintained contact he could stay with her as long as he liked. The indications were that she was something new, a ‘Victor 3’ or ‘Akula’ class. Something they didn’t have much intelligence on. By the time Splendid turned for home, they’d be groaning with it. Every minute of the patrol was recorded. There would be miles of tape to analyse.
—White, 'Vulcan 607'

It does actually note the Akula—which looks as if it refers to the Soviet designation, Project 941 Akula, or the NATO Typhoon, given the NATO designation Akula came into service in 1984—or Victor III as the potential targets. None of the service records for those submarine classes gives anything on this event.

Some later mentions made me think it was a nuclear powered (as Lane-Nott is described as noting he had a disadvantage against the Argentinian diesel submarines this same note isn't brought up with respect to this original Soviet submarine).

I previously looked into the Soviet submarine listing which made me think this could have been either of the NATO-designated Oscar or Typhoon classes. The first of the NATO-designated Oscar-class, K-525, was launched on 3rd May 1980. The first of the NATO-designated Typhoon-class, TK-208, was put into service on 9th February 1982. Both of these seem as relatively plausible options based on these timelines.

To integrate Location Kit, you must complete the following preparations:

  • Create an app in AppGallery Connect.
  • Create an Android Studio project.
  • Generate a signing certificate.
  • Generate a signing certificate fingerprint.
  • Configure the signing certificate fingerprint.
  • Add the app package name and save the configuration file.
  • Add the AppGallery Connect plug-in and the Maven repository in the project-level build.gradle file.
  • Configure the signing certificate in Android Studio.

You need to register as a developer to complete the operations above.

You need to create a project in Android Studio.

  1. Open the build.gradle file in the root directory of your Android Studio project.
  2. Go to allprojects > repositories and configure the Maven repository address for the HMS Core SDK.
  3. Go to buildscript > repositories and configure the Maven repository address for the HMS Core SDK.
  4. Open the build.gradle directory in the app's root directory of your project.
  5. Add dependency on the Location SDK.

The SDK version number in the codelab may not be the latest one. You can change it in implementation 'com.huawei.hms:location:'' as needed. For details about the SDK version numbers, please refer to Version Change History.

Before compiling the APK, configure obfuscation scripts to prevent the HMS Core SDK from being obfuscated. If obfuscation arises, the HMS Core SDK may not function properly.

  1. Open the obfuscation configuration file of your Android project.
  2. Add the following configuration to exclude the HMS Core SDK from obfuscation:
  3. If you are using AndResGuard, add its trustlist to the obfuscation configuration file.

You can click here to download the demo source code and obtain the file used during the demo development.

  1. Apply for location permissions.
    1. Declare the following permissions in the AndroidManifest.xml file of your project:
    2. If your app needs to continuously locate the device when it runs in the background in Android Q, also declare the ACCESS_BACKGROUND_LOCATION permission in the AndroidManifest.xml file.

    You can refer to the RequestLocationUpdatesWithCallbackActivity.Java file to complete subsequent steps.

    Tap requestLocationUpdates with callback in the demo app. The obtained location information will be displayed on the app screen.

    Well done. You have successfully completed this codelab and learned how to:

    • Integrate Location Kit.
    • Call the location service of Location Kit.
      For more information about Location Kit, please visit our official website. If you encounter any problems during the development, please refer to FAQs.

    For more information, please read related documents.
    You can click here to download the source code.


    Day in, day out, year after year after year—you can boat easy knowing your TRACKER is backed by an industry-leading warranty through it all.


    CSI Awards

    For the eighth consecutive time, TRACKER® has been recognized with the Customer Satisfaction Index (CSI) Award from the National Marine Manufacturers Association® (NMMA®) for Excellence in Customer Satisfaction in Aluminum Outboard Boats.

    Always up-to-date - ship tracking with MarineTraffic

    MarineTraffic is a ship-tracking and maritime information service, which was founded by Dimitris Lekkas in 2007. It is widely recognised as the world's most comprehensive maritime database and the service is able to boast more than six million unique monthly users, as well as more than one million registered account holders. Essentially, the service was set up by Lekkas because he had an existing interest in computers and ship spotting, and had become interested in the practical uses of AIS vessel tracking technology. Little did he know, he was about to create one of the most important transport databases in the world. The MarineTraffic service is available to use for free, although a paid version also exists, adding more advance features. MarineTraffic makes use of AIS vessel tracking technology to record 800 million vessel locations each month, while its database also includes information on ships, such as when and where they were built.

    2006: Motion sensing - Nokia 5500 Sport

    The first consumer product to include a built-in 3D accelerometer so that movement is recorded on three different axes: up and down, side-to-side, and front to back.

    This gave the wearer a more accurate readout of calories burned and distance covered when exercising. The latest trackers all have 3D accelerometers as standard.

    Watch the video: RFA Mounts Bay; HMS Tracker; Viking; Jackal Navy Days 2009 (May 2022).