This is what Sikorsky thinks should replace the Blackhawk
Ever since the first UH-60 took off in 1974, America’s Black Hawk helicopter has done a lot for the United States military. But let’s face it, even with the upgrades it has received over the years, it’s still been 43 years, and technology hasn’t been standing still.
Sikorsky, though, has been teaming up with Boeing to develop a replacement, the SB>1 Defiant. In some ways, this helicopter looks familiar. That’s because it is a scaled-up version of the S-97 Raider, a technology demonstrator that’s been flying for a couple of years.
The S-97 has a top speed of at least 253 miles per hour and can carry six troops. It also has a number of options to haul a fair bit of firepower, including AGM-114 Hellfire missiles, 2.75-inch rockets, 7.62mm machine guns, and .50-caliber machine guns. The S-97 uses X2 technology – in essence, a pair of contra-rotating rotors (much like the Kamov helicopters) with a push propeller. This allows it to hover 10,000 feet above the ground when the temperature is 95 degrees Fahrenheit.
The Defiant adds the X2 technology to an airframe roughly the size of the UH-60. The Defiant would be able to haul at least a dozen troops in its cabin, as well as a crew of four. It also features retractable landing gear (to reduce drag), fly-by-wire controls, a composite fuselage, and advanced rotor system.
The concept of a push propeller has been tested before by the United States military. The AH-56 Cheyenne attack helicopter also used a push propeller to achieve high speed — up to 245 miles per hour, according to MilitaryFactory.com.
The Army is reportedly going to ask for proposals from industry for a medium-lift aircraft in 2019. The SB>1 Defiant will likely form the basis for one of the responses.
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