One hundred meters from the tower he switched on the auxiliary motors, giving the three craft the extra power they’d need to deal with the updrafts around the building. His screech transmission to Willie was answered at once. Sam blew the armament covers, sending fragments of radar-absorbent panels fluttering toward the ground, then cut the trailing craft free. They’d be under Willie’s control for the final approach; there was no longer any need to maintain comm silence.