Question: What where both Hawker Hurricane and No. 1455 Flight apart of?

Context:
Supermarine Seafire
The Supermarine Seafire was a naval version of the Supermarine Spitfire adapted for operation from aircraft carriers.
 In concept, it is relatively comparable to the Hawker Sea Hurricane, a navalised version of the Spitfire's stablemate, the Hawker Hurricane.
 The name Seafire had been derived from the abbreviation of the longer name Sea Spitfire.
Flying Legend Hawker Hurricane Replica
The Flying Legend Hawker Hurricane Replica is an Italian light-sport aircraft, designed and produced by Flying Legend of Caltagirone and introduced at the AERO Friedrichshafen show in 2011.
 The aircraft, a 72% scale replica of the British Hawker Hurricane Second World War fighter, is supplied as a kit for amateur construction or as a complete ready-to-fly-aircraft.
Hawker Typhoon
The Hawker Typhoon (Tiffy in RAF slang), is a British single-seat fighter-bomber, produced by Hawker Aircraft.
 It was intended to be a medium–high altitude interceptor, as a replacement for the Hawker Hurricane but several design problems were encountered and it never completely satisfied this requirement.
Hawker Hurricane in Yugoslav service
The Royal Yugoslav Air Force (VVKJ) operated the British Hawker Hurricane Mk I fighter aircraft from 1938 to 1941.
 Between 1938 and 1940, the VVKJ obtained 24 Hurricane Mk I's from early production batches, marking the first foreign sale of the aircraft.
 Twenty additional aircraft were built by Zmaj under licence in Yugoslavia.
 When the country was drawn into World War II by the German-led Axis invasion of April 1941, a total of 41 Hurricane Mk I's were in service as fighters.
 They achieved some successes against "Luftwaffe" aircraft, but all Yugoslav Hurricanes were destroyed or captured during the 11-day invasion.
No. 1300 Flight RAF
No. 1300 (Meteorological) Flight was formed on 31 July 1943 at RAF Alipore, West Bengal, British India, by re-designating No. 1 Meteorological Flight RAF.
 The flight, strength of which had been reduced to three Hawker Hurricane Mk.IIs by this time, was disbanded on 30 May 1946 at RAF Kallang, Malaya, as No. 1300 (Meteorological THUM) Flight, THUM standing for Temperature and Humidity.
No. 1455 Flight RAF
No. 1455 (Fighter) Flight was formed at RAF Tangmere, West Sussex on 7 July 1941, equipped with Turbinlite Douglas Boston and Douglas Havoc aircraft.
 On operations they co-operated with the Hawker Hurricanes of 1 Squadron and 3 Squadron.
 The flight was replaced with 534 Squadron on 2 September 1942.
Hawker Tornado
The Hawker Tornado was a British single-seat fighter aircraft design of World War II for the Royal Air Force as a replacement for the Hawker Hurricane.
 The planned production of Tornados was cancelled after the engine it was designed to use—the Rolls-Royce Vulture—proved unreliable in service.
 A parallel airframe with the Napier Sabre continued into production as the Hawker Typhoon.
Sindlinger Hawker Hurricane
The Sindlinger HH-1 Hawker Hurricane is a ⅝ scale homebuilt design based on the Hawker Hurricane.
 Designed by Fred Sindlinger for amateur construction, the prototype was built between 1969 and 1972.
Hawker Hurricane
The Hawker Hurricane is a British single-seat fighter aircraft of the 1930s–1940s that was designed and predominantly built by Hawker Aircraft Ltd for the Royal Air Force (RAF).
 Although overshadowed by the Supermarine Spitfire, the aircraft became renowned during the Battle of Britain, accounting for 60 percent of the RAF air victories in the battle, and served in all the major theatres of the Second World War.
Battle of Britain Memorial Flight
The Battle of Britain Memorial Flight (BBMF) is a Royal Air Force flight which provides an aerial display group usually comprising an Avro Lancaster, a Supermarine Spitfire and a Hawker Hurricane.
 The aircraft are regularly seen at events commemorating the Second World War and upon British State occasions, notably Trooping the Colour, celebrating Queen Elizabeth II's 80th birthday in 2006, as well as the wedding of Prince William, Duke of Cambridge and Catherine Middleton in 2011 and at air displays throughout the United Kingdom and Europe.

Answer: Royal Air Force