The Army is looking to replace its aging helicopter fleet with something that provides more capabilities. Sometime in early 2030, the winner of the Future Long-Range Assault Aircraft is intended to replace the UH-60 Blackhawk, which originally entered service in the late 1970s, and AH-64 Apache, which entered service in the mid-1980s. There are several contenders.
Sikorsky is developing the SB-1 Defiant in tandem with Boeing. Their prototype is based on the older but similar Sikorsky X2 design. Both designs use two counter-rotating propellers for lift, and a pusher propeller at the rear for forward movement, which allows for great top speed and increased range.
Bell, one of the joint developers of the V-22 Osprey, is also in the competition. Their tilt-rotor design, the V-280 Valor is in some ways similar to the earlier V-22, though it is sleeker and lacks the V-22’s heavy-lift capabilities.
The SB-1 Defiant, also known as the SB-1 Defiant, just hit a new top speed record in June. During a flight test, the SB-1 registered a flight speed of 235 miles, or about 380 kilometers per hour, making it faster than most helicopters.
In a talk with reporters, a senior Sikorsky project director talked about the Defiant’s new speed record, saying that, “exceeding 200 knots is significant also because it’s beyond any conventional helicopter speed, and we understand that speed and low-level maneuverability is critical to the holistic survivability in a future FVL environment.”
The Defiant wasn’t even using maximum engine output to get up to speed. According to one of the platform’s test pilots, less than 50 percent of the engine’s output was being used, and said, “expect a lot more in the future because we have a lot more power to apply to this machine.”
The platform would bring several new capabilities to the Army. Though the Defiant has the same overall footprint as the venerable Black Hawk helicopter, it would be able to fly twice as fast and have double the Black Hawk’s range while being more agile and maneuverable in the air. One of the platform’s big selling points is the ability to fly lower to the ground at higher speeds than a helicopter could, allowing the Defiant to avoid ground-based enemy radar.
Still, there is a long way to go. Regardless of whoever ends up winning the Future Long-Range Assault Aircraft competition, the first units won’t be operational until sometime in the 2030s—nearly a decade or more in the future. Don’t expect to see the futuristic-looking prototype anytime soon.
Caleb Larson is a defense writer with the National Interest. He holds a Master of Public Policy and covers U.S. and Russian security, European defense issues, and German politics and culture.