Sikorsky Aircraft has incorporated the third S-76D prototype into its helicopter flight test program. Certification testing with “D3” is set to start later this year, while Sikorsky continues to collective flight test data using D1 and D2. Sikorsky Global Helicopters in assembled all three of the prototypes at its facility in Coatesville, Pa.
Related: Sikorsky Ceases S-76C++ Production
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