On 8/26/54, two AD-6 Skyraiders from the Attack Squadron 195 took off from Moffett Field Naval Air Station, California at 9:07am on the routine training flight. The lead plane BuNo 133254 was piloted by Lieutenant Commander Hubert L. Worrell followed by BuNo 135264 flown by Lieutenant (junior grade) Roger W. Tillson Jr. The purpose of the flight was long range low level navigation from Moffett Field seaward west of San Francisco, then to a point near Fallon, Nevada and return to Moffett. After taking off, the flight headed west for 35 miles then north for 32 miles. On the third leg of the flight they turn east, heading back towards land on course towards Fallon, Nevada. They encountered scattered clouds near Santa Rosa. As the flight continued at an estimated altitude between 1500 and 2000 feet, they entered an overcast three to five miles from the impact point. The two aircraft were in formation at an estimated 140 knots, in a climbing, slight right wing down attitude as they collided with the mountain. Both aircraft disintegrated on impact, killing the pilots instantly.