Military aviation, Experiment

21-May-2024 Tuesday
Sikorsky flying laboratories: S-61A "Rotorprop" and S-61F "Compound"

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Sikorsky flying laboratories: S-61A Rotorprop and S-61F Compound - Aviation history, Aviation, Helicopter, Flight, Helicopter pilots, USA, Sikorski, Science and technology, Military equipment, Military aviation, Military history, Experiment, The first flight, Yandex Zen (link), Flight tests, Longpost

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Aviation Helicopter Helicopter pilots Military aviation Military history Military equipment Aviation history Flight tests Science and technology The first flight Flight Sikorski USA Experiment Yandex Zen (link)

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