Like many of his fellow-countrymen, Kornicki was dismayed by the 1945
Yalta Agreement, which effectively
ceded Poland to the Soviets, and had no wish to return to Poland after the end of the war. Kornicki joined a course at Nottingham Technical College. On 6 March 1948 he married Patience Ceridwen Williams (known as Pat), daughter of Ewart and Enid Williams, and they began a career as hotel managers for
Symonds Brewery. They had two sons,
Peter Kornicki and Richard Kornicki. In June 1951, responding to an appeal for pilots for the RAF, which was expanding in response to
Cold War pressures, he received a short-service commission as a
Flight Lieutenant in the RAF and resumed flying. In May 1953 he switched to the Catering Branch and served on RAF stations in England, Malta, Aden and Cyprus. He was promoted to
Squadron Leader on 1 January 1961, and retired from the RAF on 8 January 1972. He subsequently worked for the
Gas Industry Training Board and then for the
Ministry of Defence. Kornicki's memorabilia, including log-book, French goggles and the attaché case he was issued with at Dęblin in 1936, are in the Polish Museum at
RAF Northolt. One of the aircraft he flew, Spitfire MkVB BM 597, is still flying in the colours of 317 Squadron: he was reunited with it at RAF Northolt on the occasion of the 70th anniversary of the Battle of Britain in September 2010, Kornicki then being 93. On 16 June 2011 he was awarded the Commander's Cross of the
Order of Polonia Restituta, which was conferred upon him in person on 24 September 2012 by the President of Poland
Bronisław Komorowski. On 11 November 2012 he was promoted to the rank of full colonel (Pułkownik) in the Polish Air Force. He turned 100 in December 2016. In autumn 2017, in preparation for its centenary in 2018, the RAF Museum organised a poll to select 'The People's Spitfire Pilot' to be featured alongside a Spitfire Mk VB at the Museum's RAF centenary exhibition. Eleven pilots from differing backgrounds were nominated, and Kornicki was the runaway winner with over 325,000 votes (the second placed, British, pilot had 6,300). This was widely reported in the Polish press and on Polish television and radio. In October 2017 he was awarded the Gold Medal of Merit for National Defence by the Polish Minister of Defence. He died on 16 November 2017 at the Sussex Clinic, a nursing home in Worthing. His wife, Pat, died ten days later, on 26 November. Their joint funeral took place on 30 November 2017 at St Michael's Church, Worthing, in the presence of the Polish ambassador and the head of the Polish Air Force, and they were interred at Northwood Cemetery, in a plot beside the Polish Air Force war graves. The Polish Air Force provided pall-bearers and colour parties, the Queen's Colour Squadron of the RAF Regiment lined the route with arms reversed, and there was a fly-past by an aircraft of 32 (The Royal) Squadron based at RAF Northolt. He was posthumously promoted to the rank of Generał Brygady by the President of Poland,
Andrzej Duda, in a ceremony held at the Polish Embassy in London on 3 December 2019. ==Works==