Boeing of Seattle is a multi-faceted aviation company that has been in business for more than 80 years. My interest pertains just to their rotorcraft division. In the early part of the 1970's, Boeing successfully won the military contract to produce a troop and cargo helicopter designated as XCH-62. With Boeing's resources, finances, technology, and engineering capability this heavy-lift helicopter fell short of its target in late 1974 and was put on the back parking lot (mothballed). With continued advancement in technology, techniques, and materials, the design was revisited in the early part of the 1980's.
Redesignated the Model 360, a 15% weight reduction with a 25% increase in payload was achieved as well as a 40% increase in over all skin toughness and approximately 32% increase in speed, to 246 miles per hour. The results in the technology updates resulted in a lighter, faster, and more fuel efficient aircraft that is easier to maintain. The use of composites for much of the fabrication resulted in a more stealth like aircraft. Boeing's development improvements took 20 years and cost $100,000,000 to $125,000,000.
There is a strong parallel between the Pegasus MkIII and the XCH62/Model 360. The MkIII was conceived by a group of experienced engineers who invested 10 years, built 5 prototypes before the 6th aircraft was built and was certified both in Canada and the United States. The gyroplane was placed in mothballs due to budge constraints when the prevalent thought became that a helicopter would be a better way to go. The MkIII is a superior design in it's present rendering with the capability to provide fast, point-to-point transportation. It remains an efficient, near stealth, safe and easy aircraft to fly. The very fact that it is already certified and could be built using today's materials without affecting the certification means that it could be brought to general manufacture in a relatively short period of time. Note the supporting information on the other pages. To replicate this aircraft from scratch would take approximately 5 years and dual certification would cost in the range of 50 to 70 million dollars.