in

Boeing-Sikorsky Team Tests SB-1 Defiant Helicopter Following Propulsion Modifications

Boeing-Sikorsky Team Tests SB-1 Defiant Helicopter Following Propulsion Modifications - top government contractors - best government contracting event
Boeing-Sikorsky Team Tests SB-1 Defiant Helicopter Following Propulsion Modifications

A team composed of Boeing and Lockheed Martin's Sikorsky subsidiary conducted the fourth flight test of a next-generation helicopter designed to inform the U.S. Army's requirements for future long-range assault aircraft, Defense News reported Wednesday.

The sortie, which saw the SB-1 Defiant coaxial helicopter fly at a speed of 20 knots, will be followed by a fifth flight test aimed at reaching 40-knot speeds.

SB-1 Defiant serves as a participant for the Army's Joint Multi-Role technology demonstration program and includes modifications the team installed after finding issues with its propulsion system testbed.

“We saw a phenomenon called “˜bearing creep' in the gearbox, and so we made a minor design tweak to keep that from becoming an issue,“ said Ken Eland, director and manager of Boeing's FLRAA program.

The Boeing-Sikorsky team completed Defiant's first flight in March and expects the aircraft to go beyond the Army's 230-knot speed requirement and reach 250 knots.

ExecutiveBiz Logo

Sign Up Now! ExecutiveBiz provides you with Daily Updates and News Briefings about Technology

Northrop to Provide 50-Kilowatt Laser System for Army's Stryker Vehicles - top government contractors - best government contracting event

Northrop to Provide 50-Kilowatt Laser System for Army's Stryker Vehicles

Lockheed, Akhan Semiconductor Test Diamond-Based UAS Coating at AUSA Conference - top government contractors - best government contracting event

Lockheed, Akhan Semiconductor Test Diamond-Based UAS Coating at AUSA Conference