US Navy "Blue Angels" F/A-18E 'Super Hornets' 4-plane inline perform the 'Left Echelon Roll' maneuver.
Photographed from 18th Street and 19th Avenue N., Fargo. (NDSU Reseach & Technology, parking lot)

'Left Echelon Roll' maneuver: Ingressing from crowd left in front of the crowd, the Diamond transitions to left echelon. Approaching Center Point they commence a climb and then roll the formation 360 degrees to the left and egress to the right as they transition back to Diamond.