The aircraft "saw safe and efficient operation throughout multiple flight tests," and analysis of the test flights validates H2Fly's expected range figures, according to a press release. “This ...

The twin-prop, which uses liquid hydrogen to power a fuel-cell propulsion system, took off from Maribor, Slovenia before completing four flights. The company says the jaunts proved that using ...

There’s something to be said for a simple wind-up, free flight model airplane. With no controls, it must be built very well to fly well, and with only the limited power of a rubber band, it needs a ...