chevvron has it - Brooklands 2018 Fly In. Came across a YouTube video of it yesterday and thought that it would be a good challenge. Wasn't sure how much I should crop the images.
By co-incidence the film we were watching was "Those Magnificent Men in Their Flying Machines". Thought about mentioning it in my previous, but thought it might have been taken as a clue for Booker.
chevvron has control.
video: