Mid-air collision along the coastline

What happens in this video ?

Mid-Air collision of two aircraft that were performing aerobatics display along the coastline at Alba Adriatica, Italy, on May 31st 2015. One aircraft, a Van's RV-8, lost a wing and crashed into the sea, killing the pilot. The pilot of the other aircraft, a Van's RV-7, managed to make a forced landing on the shoreline, causing the airplane to flip upside down. The pilot survived.
The Van’s Aircraft RV-7 / RV-8 are two-seat, single-engine, low-wing homebuilt airplanes sold in kit form by Van's Aircraft, and designed for aerobatics.

Comment

Carl Hackert
Saratoga Springs, Ny

(Usa)
No room for error if the aircraft don't have enough vertical separation and if they don't rotate in the proper pre-planned direction upon command so that their wings do not strike each other.
29th November, 2018