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In preparation for first flight later this year, Sikorsky registered the SB-1 Defiant with the Federal Aviation Administration (FAA), which gave the experimental prototype the designation S-100.An FAA registry certificate was issued Aug. 2 for the coaxial-rotor Defiant, which is based on the smaller S-97 Raider that has already flown. Sikorsky confirmed to Defense Daily sister publication RW&I the aircraft registration was the Defiant, though it will retain the SB-1 designation in common parlance.“Yes, the registry application for S-100 is…
