The USS Bastian (CVE-37) (originally AVG-37 and then ACV-37) was an escort aircraft carrier

Escort aircraft carrier

The escort aircraft carrier or escort carrier, also called a "jeep carrier" or "baby flattop" in the USN or "Woolworth Carrier" by the Royal Navy, was a small and slow type of aircraft carrier used by the British Royal Navy , the Imperial Japanese Navy and Imperial Japanese Army Air Force, and the...

 built by Seattle-Tacoma Shipbuilding of Tacoma, Washington

Tacoma, Washington

Tacoma is a mid-sized urban port city and the county seat of Pierce County, Washington, United States. The city is on Washington's Puget Sound, southwest of Seattle, northeast of the state capital, Olympia, and northwest of Mount Rainier National Park. The population was 198,397, according to...

, laid down on 25 August 1942 and launched 15 December 1942. She was transferred to the United Kingdom

United Kingdom

The United Kingdom of Great Britain and Northern IrelandIn the United Kingdom and Dependencies, other languages have been officially recognised as legitimate autochthonous languages under the European Charter for Regional or Minority Languages...

, under Lend-Lease

Lend-Lease

Lend-Lease was the program under which the United States of America supplied the United Kingdom, the Soviet Union, China, Free France, and other Allied nations with materiel between 1941 and 1945. It was signed into law on March 11, 1941, a year and a half after the outbreak of war in Europe in...

 and commissioned on 4 August 1943 as HMS Trumpeter (D09).

On 4 May 1945 aircraft of 846 Naval Air Squadron flew from Trumpeter to take part in Operation Judgement

Operation Judgement, Kilbotn

Operation Judgement, Kilbotn was an operation carried out at the end of World War II by the Home Fleet of the Royal Navy in North Norway on May 4, 1945, when 44 aircraft of the Fleet Air Arm attacked a U-boat base five miles south of the town and port of Harstad. The attack was directed at vessels...

, an attack on the U-boat depot at Kilbotn

Kilbotn

Kilbotn is a village in the municipality of Harstad in Troms county, Norway. The population of the village is 332, but since 2002 it has been considered a part of the Harstad urban area. The village is located about south of the center of the city of Harstad, along the Vågsfjorden on the east...

, Norway, contributing eight Avengers

TBF Avenger

The Grumman TBF Avenger was a torpedo bomber developed initially for the United States Navy and Marine Corps, and eventually used by several air or naval arms around the world....

 and four Wildcats

F4F Wildcat

The Grumman F4F Wildcat was an American carrier-based fighter aircraft that began service with both the United States Navy and the British Royal Navy in 1940...

 to a 44-aircraft attack that destroyed several vessels including the depot ship "Black Watch" and U-711.

Trumpeter was returned to United States

United States

The United States of America is a federal constitutional republic comprising fifty states and a federal district...

' custody 6 April 1946, stricken from the Naval Vessel Register

Naval Vessel Register

The Naval Vessel Register is the official inventory of ships and service craft in custody of or titled by the United States Navy. It contains information on ships and service craft that make up the official inventory of the Navy from the time a vessel is authorized through its life cycle and...

 19 June 1946 and sold into merchant service as the Alblasserdijk (later renamed Irene Valmas). She was sold for scrap in Spain

Spain

Spain , officially the Kingdom of Spain languages]] under the European Charter for Regional or Minority Languages. In each of these, Spain's official name is as follows:;;;;;;), is a country and member state of the European Union located in southwestern Europe on the Iberian Peninsula...

 in 1971.

Design and description

These ships were all larger and had a greater aircraft capacity than all the preceding American built escort carriers. They were also all laid down as escort carriers and not converted merchant ships. All the ships had a complement of 646 men and an overall length of 492 inch, a beam

Beam (nautical)

The beam of a ship is its width at the widest point. Generally speaking, the wider the beam of a ship , the more initial stability it has, at expense of reserve stability in the event of a capsize, where more energy is required to right the vessel from its inverted position...

 of 69 inch and a draught of 25 in 6 in (7.77 m). Propulsion was provided a steam turbine, two boilers connected to one shaft giving 9,350 brake horsepower (SHP), which could propel the ship at 16.5 knots (9 m/s).

Aircraft facilities were a small combined bridge–flight control on the starboard side, two aircraft lifts 43 feet (13.1 m) by 34 feet (10.4 m), one aircraft catapult

Aircraft catapult

An aircraft catapult is a device used to launch aircraft from ships—in particular aircraft carriers—as a form of assisted take off. It consists of a track built into the flight deck, below which is a large piston or shuttle that is attached through the track to the nose gear of the aircraft, or in...

 and nine arrestor wires

Arresting gear

Arresting gear, or arrestor gear, is the name used for mechanical systems designed to rapidly decelerate an aircraft as it lands. Arresting gear on aircraft carriers is an essential component of naval aviation, and it is most commonly used on CATOBAR and STOBAR aircraft carriers. Similar systems...

. Aircraft could be housed in the 260 feet (79.2 m) by 62 feet (18.9 m) hangar below the flight deck. Armament comprised: two 4 inch Dual Purpose

Dual purpose gun

A dual purpose gun is a naval artillery mounting designed to engage both surface and air targets.-Description:Second World War-era capital ships had four classes of artillery: the heavy main battery, intended to engage opposing battleships and cruisers ; a secondary battery for use against enemy...

 guns in single mounts, sixteen 40 mm Bofors

Bofors 40 mm gun

The Bofors 40 mm gun is an anti-aircraft autocannon designed by the Swedish defence firm of Bofors Defence...

 anti-aircraft guns in twin mounts and twenty 20 mm Oerlikon

Oerlikon 20 mm cannon

The Oerlikon 20 mm cannon is a series of autocannons, based on an original design by Reinhold Becker of Germany, very early in World War I, and widely produced by Oerlikon Contraves and others...

 anti-aircraft cannons in single mounts. They had a maximum aircraft capacity of twenty-four aircraft which could be a mixture of Grumman Martlet, Vought F4U Corsair or Hawker Sea Hurricane fighter

Fighter aircraft

A fighter aircraft is a military aircraft designed primarily for air-to-air combat with other aircraft, as opposed to a bomber, which is designed primarily to attack ground targets...

 aircraft and Fairey Swordfish

Fairey Swordfish

The Fairey Swordfish was a torpedo bomber built by the Fairey Aviation Company and used by the Fleet Air Arm of the Royal Navy during the Second World War...

 or Grumman Avenger anti-submarine aircraft.