The racetrack airstrip used to be behind the present pit complex and ran north south with the threshold near a small dam.
The DVD about the ATCC championship in the 1970's shows a number of aircraft parked on the strip as well as arriving and departing during the meeting.
A number of the drivers used to own aircraft or get flown in for the race meetings.
The former owner of the other airstrip on the Island had some rather interseting experiences on the racetrack airstrip on windy days.
According to a well known person the main straight was used for larger twins if they were going back to Sydney etc.