Sikorsky’s Defiant Prototype Registered With FAA As ‘S-100’ Before First Flight
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 […]
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