Nord 1700 Norélic

The Norélic was a prototype two-seat, single rotor helicopter with an unusual anti-torque system, without a manual cyclic pitch control.

[4] The Norélic had a two-blade articulated rotor with undamped flapping hinges; the blades had the same chord and aerofoil from hub to tip and were each built around a single solid spar with ribs and a thin metal skin, all clamped together.

Though reminiscent of the servos on the Hiller 360, those on the Norélic were themselves flappable and were intended to control both cyclic pitch and the flapping amplitude of the main rotors.

Thus the cockpit cyclic pitch control was absent, and instead roll was produced by sideways motion of the hub via its parallel support pillars, which separated the centres of lift and gravity.

[1] Thus the intended production machines, with more refined cockpit glazing, faired rotor gear and incorporating lessons learned from the prototype,[2] never appeared.