British Gyroplanes Limited "BGL four-runner" prototype single-seat gyroplane, made by Peter Lovegrove, first registration 1998, a powered tractor-mode autogyro powered by a Rotax two-stroke 503cc capacity engine mounted forward, friving a GSC Tech III three-bladed propeller, with Rotodyne two-bladed teetering rotor, registration G-BXXR. 'BGL Four-Runner' Prototype Single-Seat Gyroplane 1998