First Flight For Battery-Powered Helicopter »

Tier 1 Engineering has flown a battery-powered manned helicopter for a five-minute cruise flight, the company recently announced. The aircraft flew to 400 feet altitude and reached a peak speed of 80 knots during its first flight, which took place in late September in Costa Mesa, California. “I’m very pleased to achieve this historic breakthrough in aviation,” said Glen Dromgoole, Tier 1 president. “Never before has a conventional manned helicopter performed a vertical takeoff, cruise, and landing solely on battery power.” More

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