Sikorsky-Boeing’s SB-1 Defiant Helicopter

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Sikorsky and Boeing have been working on this high-speed, long-range, ultra-maneuverable military helicopter design for some time, and now they’ve released the first photos of what is expected to become a highly effective US Army utility helicopter sometime in the 2030s.

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In recent years, plastic bags have evolved from simple shopping carriers into fashionable accessories. Designers …

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