DEFIANT Continues to Expand FVL Flight Envelope


The Sikorsky-Boeing team continues to make significant progress as they advance DEFIANT's rigorous flight test program. Just this week, with only about two-thirds of available prop torque and engine power, DEFIANT achieved 211 knots flying straight and level. Sikorsky Experimental Test Pilot, Bill Fell, further expanded the flight envelope by reaching 232 knots while descending.

With every flight, the team increases DEFIANT's speed, angle of bank, and climb rate.  These crucial tests gather essential data to reduce the program's risk while validating the team's modeling and simulation tools for future designs.

"Together, Sikorsky and Boeing provide nearly 90% of the aircraft in the Army's inventory today," said Andy Adams, Vice President, Sikorsky Future Vertical Lift. "We understand how tomorrow's multi-domain operations require aircraft that provide survivability, agility and speed – where it matters."

"That's why we're planning ahead with continued flight testing, refining our designs to specifically match the Army's requirements, and building a weapon system that will give the Army transformational capability with unsurpassed training and sustainment capabilities – giving our Soldiers what they need to achieve aviation overmatch for the next 40 years," Andy Adams continued.

"We understand how tomorrow's multi-domain operations require aircraft that provide survivability, agility and speed – where it matters." ~ Andy Adams, Vice President, Sikorsky Future Vertical Lift

The team recently flew the Sikorsky S-97 RAIDER and the Sikorsky-Boeing DEFIANT together in formation to demonstrate what future operations could look like. The transformational capability of both X2 Technology powered aircraft will provide unrivaled flexibility in support of the ground commander.

The team is excited about the results they are seeing and what the future holds for their ability to bring this capability to the warfighter.