General Electric Aviation’s much-heralded eCore advanced gas generator may see its introductory application not in an airliner engine but in a business jet powerplant — the long-awaited “10K,” or 10,000-pound-thrust class turbofan the company has promised for several years amid an aura of super secrecy.

As an integral part of its business and general aviation division reorganization in 2008, General Electric Aviation added a business jet component to its existing customer operations center at its Cincinnati headquarters.

There are so many helicopters in Brazil’s largest city, São Paulo, that The Guardian newspaper in Manchester, England, has termed it “the real-life South American episode of the ‘Jetsons,’” the 1960s animated send-up of future life.