Solar Impulse 2 lands safely in Hawaii

Hawaii landing

Solar Impulse 2, piloted by Andre Borschberg, exceeded the previous record of 76 hours’ flying time.

The journey from Nagoya in Japan to Kalaeloa, Hawaii, breaks the absolute distance and duration world records for manned solar-powered aeroplanes – records set by Solar Impulse on earlier flights.

We watched the landing, live on BBC World, at 9:54 MDT.

4 thoughts on “Solar Impulse 2 lands safely in Hawaii

  1. Update says:

    Solar Impulse grounded in Hawaii until April 2016 due to battery damage http://news.nationalgeographic.com/energy/2015/07/150715-solar-impulse-plane-grounded/
    Damage to certain parts of the four 70 liter lithium polymer batteries, attached to the plane’s wings, is said to be irreversible, with repairs and replacements expected to take several weeks. The batteries were developed with Solvay, Kokam and Bayer Material Science, and have been optimized to 260 watt hours per kg. Combined, they can store 164,580 watts of power, and weigh 633 kg – one-quarter of the aircraft’s total weight.
    “During the first ascend on day one of the flight from Nagoya to Hawaii, the battery temperature increased too much due to over insulation,” said the Solar Impulse team in a statement released. “And while the Mission Team was monitoring this very closely during the mission leg, there was no way to decrease the temperature for the remaining duration of the flight as each daily cycle requires an ascend to 28’000 feet and descend for energy management issues,” it continued.

  2. Smilin' Jack says:

    (April 20, 2015) Researchers at Siemens have created a new prototype electric motor specifically designed for aircraft that weighs in at just 50 kg (110 lb) and is claimed to produce about 260 kW (348 hp) at just 2,500 RPM. This ratio is an exceptional figure – especially if compared to similarly powerful industrial electric motors used in heavy machinery that produce less than 1 kW per kilogram, or even to more efficient electric motors for vehicles that generate around 2 kW per kilogram. >The four electric motors in the Solar Impulse 2, by comparison, produce just 7.5 kW (10 hp) each.< With power five times greater than any comparable powerplant, the new motor has the potential to get aircraft with take-off weights of up to 1,800 kg (2 ton) off the ground. http://www.gizmag.com/siemens-world-record-electric-motor-aircraft/37048/ Siemens is not alone in pursuing the goal of electric flight. As previously reported Airbus has made big strides with electric propulsion technology. Its two-seater E-Fan aircraft performed its first public flight last year (2014) whilst the company has a longer-term stated vision to develop a 90-seater electric passenger plane. http://www.theengineer.co.uk/quiet-revolution-bringing-electric-planes-to-market/

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