Are these guys doing break-dancing to the audience
?
It's the Whitfield Aerodrome, Dover.
And the first event you are talking about is the first flight from England to Germany, which took off from Whitfield on 18th April 1913. Flown by Gustav Hamel with a passanger in an 80hp Bleriot monoplane, he did the 245 mile journey non stop, in 258 minutes, through rain and hail storms, landing in Cologne.
Or, maybe: Harriet Quimby, the first woman to fly the Channel (1912), using Gustav Hamel's biplane, see above.