The ability for this concept to compete with future rotorcraft and STOL airplanes may be questionable.
However, Groen Brothers Aviation should be complimented for presenting their proposals with a realistic objectivity. For instance;
"This first GBA GyroLiner would have a range in excess of 350 miles, cruising at 250 mph."
Perhaps someone should delicately tell Groen that CarterCopter has already produced a far far superior craft.
The following is from
CarterCopter Heliplane Transport ;
"The aircraft is taller than a four-story building. The main wheels are six feet tall, the two props are 24 feet in diameter and the rotor is one-half the length of a football field. A fully loaded Greyhound bus can be driven up its ramp and parked inside (with room to spare), and then flown away - straight up. Once airborne, the CCH-T converts into a CC gyroplane with flight efficiencies equivalent to fixed-wing aircraft. The CCH-T is designed to cruise at 450 MPH at 30,000 ft altitude and carry a 45,000 lb payload for 1500 miles with a 45-minute fuel reserve."
