WIND TUNNELS 101

OPEN/ CLOSED JET

A closed jet (Southampton, A2) has an enclosed test area that’s a similar size to the ducting; an open jet (D2Z, Specialized) has a test area in a much larger room, so is less e icient but better replicates the real world

OPEN/ FULL RETURN

A full return tunnel circulates air for e iciency; an open return tunnel doesn’t