WORLD’S LARGEST WHIRLYBIRD (Oct, 1955)
WORLD’S LARGEST WHIRLYBIRD
THE world’s largest transport helicopter and America’s first twin-engined tandem whirlybird transport is the Piasecki YH-16. An important feature of its tandem design is that cargo can be loaded quickly without too much regard for weight balance. The craft’s rotors are connected by a shaft to permit single engine operation and its all-metal blades, 82 feet in diameter, are the biggest shaft-driven rotors in existence at the present time.