His father, Carew Reynell, who was a leading winemaker died at Gallipoli in 1915 while commanding the 9th Light Horse.
Before the start Second World War he took a job as a test pilot with Hawker Aircraft.
On 7 September, Reynell was called back to Hawker to replace a pilot who had been killed.
This was the day of the Luftwaffe's first large scale raids against London and his squadron of 12 aircraft attacked 100 German planes.
[2][5] In 2013, a stone in memory of Reynell was unveiled in Point View park, Greenwich, close to the site.