On This Day in Aviation History
On This Day in Aviation History: July 27th
1972: The McDonnell Douglas F-15 Eagle flies for the first time.
2002: In the worst air show disaster in history, a Sukhoi Su-27 fighter aircraft crashes during a demonstration in Lviv, Ukraine, killing 85 spectators and injuring 100 others.
2007: Two news helicopters collide over Phoenix while covering a police pursuit, killing all four people on both choppers.