Helicopter Turn

A finning technique that rotates a diver in place around their own axis, flat and stationary, using opposing fin strokes and no hands.

The helicopter turn rotates you in place around your own vertical axis while you stay flat and neutrally buoyant, like a helicopter pivoting on the spot. From the bent-knee frog kick position, one fin sweeps outward while the other feathers or strokes in the opposite direction, and the opposing forces spin you smoothly without any forward movement, without dropping a knee, and without a single hand scull. A good helicopter turn looks like nothing is happening at all: the diver simply rotates, silt undisturbed.

It earns its keep anywhere space or bottom composition punishes clumsy turning. Inside a wreck or cavern you can turn to check on a teammate without kicking the walls or floor. Over silt you can rotate to navigate or look behind you without triggering a silt-out. Photographers use it to track a moving subject, and in team diving it is how you keep eyes on your buddies during stops. Paired with the back kick, it completes hands-free, slow-speed maneuverability in every direction.

Like the back kick, it depends on flat trim and independent ankle control, and it arrives with practice rather than talent. GUE and cave training drill it explicitly, but any diver can practice during a safety stop: pick a reference, rotate 360 degrees in each direction, and try to end exactly where you started. If you drift forward or backward while turning, the two fins are not yet balanced against each other, which is precisely the feedback that makes the drill worth repeating.