Harland Ross completed the all metal, two-place R-6 in 1956 with the same wing designed for the RJ-5, giving it one of the heaviest wing loading in the world at that time. The span was subsequently increased by five feet (to 18.29 m/ 60 ft).
The R-6 has a metal fuselage and is equipped with dive brakes. The original skid and takeoff dolly was subsequently replaced with a retractable gear. The passenger sits aft of the spar under a removable bubble. Only one was built.
In 1958 Ross used it to set world multi-place records in the 100 km, 300 km and 500 km triangle speed categories and a national out-and-return record of 377.6 km./ 234.66 miles, all set in a four-day period.
Wing span: 18.29 m / 60 ft
Wing area: 11.91 sq.m / 128.2 sq.ft
Aspect ratio: 28
Airfoil: NACA 63(2)-615
Empty Weight: 300 kg / 662 lb
Payload: 256 kg / 564 lb
Gross Weight: 556 kg / 1226 lb
Wing Loading: 46.43 kg/sq.m /9.6 lb/sq.ft
Water Ballast: 0
L/DMax: 40 106 kph / 57 kt / 66 mph
MinSink: 0.72 m/s / 2.35 fps / 1.39 kt