BBC
updated report.
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A 65-year-old man from Balls Cross, near Petworth in West Sussex, and a 58-year-old man from Gosport in Hampshire died, a Sussex Police spokesman said."
"A pilot who had taken off from Goodwood Airfield shortly before the crash said he believed the plane had taken off between about 16:20 and 16:30. He said: "Shortly after I took off another plane took off. Other air traffic was told not to enter the airport air traffic zone. I could see black smoke reaching 100ft (30m) at the other side of the runway just outside the bounds of the airfield itself."