Keystone Helicopter of West Chester, Pa., signed a five-year nonexclusive contract with Sikorsky Aircraft to provide executive completions for the new S-92 medium-twin helicopter. The work will include custom design, certification and installation, as well as exterior painting. The first S-92 to get the Keystone VIP configuration is scheduled for completion in December, next year for delivery to a large Northeast corporate customer. The 19-passenger S-92 received FAA certification last December, some 10 years after Sikorsky announced development of the aircraft. The S-92, evolved from the military S-70 Blackhawk, is priced at $15.5 million. Sikorsky Aircraft’s S-92 team was the recipient of the 2002 Robert J. Collier Trophy.