Sikorsky S-100 registration confirmed as SB-1 Defiant

AvatarBy Vertical Mag | August 8, 2018

Estimated reading time 2 minutes, 15 seconds.

Lockheed Martin has confirmed that the Sikorsky S-100 rotorcraft registered with the U.S. Federal Aviation Administration (FAA) last week is, in fact, the Sikorsky Boeing SB>1 Defiant.

SB>1 Defiant in flight
Based on Sikorsky’s X2 technology, the SB>1 Defiant will feature rigid coaxial main rotors and a clutched rear pusher prop. Lockheed Martin Image

The news of the registration — for N-number N100FV, serial number 0001 — was first reported by Helihub. A spokesperson for Sikorsky parent company Lockheed Martin confirmed to Vertical that the registration is for the compound helicopter that Sikorsky and Boeing are developing for the U.S. Army’s Joint Multi-Role Technology Demonstrator (JMR TD) program, a precursor to the Future Vertical Lift (FVL) program that aims to modernize the Army’s rotorcraft fleet.

“Yes, the registry application for S-100 is referring to the Sikorsky-Boeing SB>1 Defiant,” the spokesperson said. “Our team is following the FAA’s process for how they formally designate experimental aircraft; however, we will continue to use SB>1 Defiant when describing our aircraft asset.”

The SB>1 is based on Sikorsky’s coaxial X2 helicopter, which achieved speeds in excess of 250 knots during demonstration flights in 2010. Sikorsky and Boeing have partnered on the SB>1 as the basis for a medium-lift FVL aircraft, which could eventually replace the Army’s existing Sikorsky UH-60 Black Hawks and Boeing AH-64 Apaches.

Sikorsky is also using X2 technology as the basis for its smaller S-97 Raider, which it is developing for a possible FVL light application. The company has described the Raider as also serving as a “risk reducer” for the SB>1 Defiant, which is expected to make its first flight this year.

Notice a spelling mistake or typo?

Click on the button below to send an email to our team and we will get to it as soon as possible.

Report an error or typo

Leave a comment

Your email address will not be published. Required fields are marked *