Left to right: Enterprise, Weetamoe, Resolute, Vanitie, Whirlwind,. The Race Commitee tug is in the cenre foreground; the white cone indicates that the warning signal has been made. The aeroplane photograph was taken eight minutes before the start.Note the large yawl in the upper right-hand corner; she is apparently sailing over the land.

From the book :

Enterprise : the story of the defense of the America's cup in 1930