Two 600-watt motors propel the F4U, taking it up to a rather intense top speed of 30 mph (48 km/h). One charge of its 5,200-mAh lithium-ion battery is reportedly good for a range of 16 miles (26 km).
HOUSTON (AP) — Some crouched, hands scraping the ground as they cut closely around corners at breakneck speed. Others took the corners wide with just a shift of hips and their arms outstretched, ...
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