Lepus flares were also used on the F4 in its night ground attack role in the early 70's. The delivery was toss. Pre-flight, the flares were manually adjusted for time of flight before parachute opening. Thus 3 flares could be released in quick succession at, say, 30, 35, and 40 degrees of pitch and theoretically straddle the target at co-height. The lead a/c generally carried 6 flares.