HMS Avon, later renamed NRP Nuno Tristão, was a River-classfrigate of the Royal Navy (RN). Avon was built to the RN's specifications as a Group II River-class frigate. She served in the North Atlantic during World War II.
As a River-class frigate, Avon was one of 151 frigates launched between 1941 and 1944 for use as anti-submarine convoy escorts, named after rivers in the United Kingdom. The ships were designed by naval engineer William Reed, of Smith's Dock Company of South Bank-on-Tees, to have the endurance and anti-submarine capabilities of the Black Swan-classsloops, while being quick and cheap to build in civil dockyards using the machinery (e.g. reciprocating steam engines instead of turbines) and construction techniques pioneered in the building of the Flower-classcorvettes. Its purpose was to improve on the convoy escort classes in service with the Royal Navy at the time, including the Flower class.
After her commission, Avon was deployed in the Indian Ocean, where she rescued the survivors of the sunken Norwegian freighter Tarifa.[b] In 1945, she took part in the Battle of Okinawa, where she came under air attack. Postwar, Avon was paid off and placed in the Reserve Fleet, where she stayed until 1949. That year, she was sold to Portugal and renamed NRP Nuno Tristão.[1]
The Nuno Tristão was used in several notable events, such as carrying Emperor Haile Selassie of Ethiopia on a state visit from Bayonne to Portugal in July 1959[3] and supporting fuzileiros in Africa.[4][5] In 1970, after 21 years of service in the Portuguese Navy, the ship was delisted; it was scrapped in Lisbon two years later.[1]
Notesedit
^There are several rivers in the United Kingdom called Avon, and it is unclear which one this is.
^Naval History claims that 96 survivors were rescued, whilst Uboat.net states that 123 survivors were rescued.[1][2]
Citationsedit
^ abc"HMS AVON (K 97) - River-class Frigate". Naval History. Retrieved 17 April 2020.
^"HMS Avon (K 97)". Uboat.net. Retrieved 17 April 2020.
^"L'EMPEREUR D'ÉTHIOPIE S'EST EMBARQUÉ POUR LISBONNE" [THE EMPEROR OF ETHIOPIA SET SAIL FOR LISBON] (in French). Le Monde. 25 July 1959. Retrieved 5 March 2022.
Boavida, Isabel; Ramos, Manual João, eds. (5 January 2009). Ras Tafari in Lusoland: On the 50th anniversary of Haile Selassie´s I state visit to Portugal, 1959-2009: Exhibition Catalogue. Lisbon: Centro de Estudos Internacionais do Instituto Universitário de Lisboa. ISBN978-972-8335-18-2. Retrieved 17 April 2020.
Cann, John (2016). The Fuzileiros: Portuguese Marines in Africa, 1961–1974. Solihull: Helion and Company Ltd. ISBN978-1-910777-64-0. Retrieved 17 April 2020.
April 15, 2024
avon, other, ships, with, same, name, avon, avon, later, renamed, nuno, tristão, river, class, frigate, royal, navy, avon, built, specifications, group, river, class, frigate, served, north, atlantic, during, world, avon, during, wwiihistoryunited, kingdomname. For other ships with the same name see HMS Avon HMS Avon later renamed NRP Nuno Tristao was a River class frigate of the Royal Navy RN Avon was built to the RN s specifications as a Group II River class frigate She served in the North Atlantic during World War II HMS Avon during WWIIHistoryUnited KingdomNameAvonNamesakeRiver Avon a Ordered10 August 1942BuilderCharles Hill amp Sons Ltd BristolLaid down8 January 1943Launched19 June 1943Commissioned18 September 1943PortugalNameNuno TristaoAcquired1949FateBroken up at Lisbon 1972General characteristicsClass and typeRiver class frigateDisplacement1 370 long tons 1 390 t 1 830 long tons 1 860 t deep load Length283 ft 86 26 m p p 301 25 ft 91 82 m o aBeam36 5 ft 11 13 m Draught9 ft 2 74 m 13 ft 3 96 m deep load Propulsion2 Admiralty 3 drum boilers 2 shafts reciprocating vertical triple expansion 5 500 ihp 4 100 kW Speed20 knots 37 0 km h Range440 long tons 450 t 490 short tons oil fuel 7 200 nautical miles 13 334 km at 12 knots 22 2 km h Complement107Armament2 QF 4 inch 102 mm Mk XIX guns single mounts CP Mk XXIII up to 10 QF 20 mm Oerlikon AA guns on twin mounts Mk V and single mounts Mk III 1 Hedgehog 24 spigot A S projector up to 150 depth chargesAs a River class frigate Avon was one of 151 frigates launched between 1941 and 1944 for use as anti submarine convoy escorts named after rivers in the United Kingdom The ships were designed by naval engineer William Reed of Smith s Dock Company of South Bank on Tees to have the endurance and anti submarine capabilities of the Black Swan class sloops while being quick and cheap to build in civil dockyards using the machinery e g reciprocating steam engines instead of turbines and construction techniques pioneered in the building of the Flower class corvettes Its purpose was to improve on the convoy escort classes in service with the Royal Navy at the time including the Flower class After her commission Avon was deployed in the Indian Ocean where she rescued the survivors of the sunken Norwegian freighter Tarifa b In 1945 she took part in the Battle of Okinawa where she came under air attack Postwar Avon was paid off and placed in the Reserve Fleet where she stayed until 1949 That year she was sold to Portugal and renamed NRP Nuno Tristao 1 The Nuno Tristao was used in several notable events such as carrying Emperor Haile Selassie of Ethiopia on a state visit from Bayonne to Portugal in July 1959 3 and supporting fuzileiros in Africa 4 5 In 1970 after 21 years of service in the Portuguese Navy the ship was delisted it was scrapped in Lisbon two years later 1 Notes edit There are several rivers in the United Kingdom called Avon and it is unclear which one this is Naval History claims that 96 survivors were rescued whilst Uboat net states that 123 survivors were rescued 1 2 Citations edit a b c HMS AVON K 97 River class Frigate Naval History Retrieved 17 April 2020 HMS Avon K 97 Uboat net Retrieved 17 April 2020 L EMPEREUR D ETHIOPIE S EST EMBARQUE POUR LISBONNE THE EMPEROR OF ETHIOPIA SET SAIL FOR LISBON in French Le Monde 25 July 1959 Retrieved 5 March 2022 Boavida amp Ramos 2009 p 27 Cann 2016 p 34 References editBoavida Isabel Ramos Manual Joao eds 5 January 2009 Ras Tafari in Lusoland On the 50th anniversary of Haile Selassie s I state visit to Portugal 1959 2009 Exhibition Catalogue Lisbon Centro de Estudos Internacionais do Instituto Universitario de Lisboa ISBN 978 972 8335 18 2 Retrieved 17 April 2020 Cann John 2016 The Fuzileiros Portuguese Marines in Africa 1961 1974 Solihull Helion and Company Ltd ISBN 978 1 910777 64 0 Retrieved 17 April 2020 Retrieved from https en wikipedia org w index php title HMS Avon K97 amp oldid 1170809122, wikipedia, wiki, book, books, library,
