Two Electric Approaches to Coastal Waterways

Dean Sigler Announcements, Batteries, Electric Powerplants, Sky Taxis, Sustainable Aviation Leave a Comment

Two electric approaches to providing seaside flight come from cold and warm climates and from elevations close to sea level to topping Norwegian fjords.  Both rely on electric power to carry up to 12 passengers between seaside destinations. Regent Seaglider If the Wall Street Journal can overcome its skepticism and marvel at the $7 billion in letters of intent or other forms of interest, they might look into what seems to be drawing potential customers.  That may come from the company’s mission, “To drastically reduce the cost and headache of regional transportation between coastal cities.” Skimming the water at up to 180 mph, the Regent Viceroy employs Wing In Ground effect (WIG) aerodynamics to lift it high enough to skim the waves while benefiting from flight in ground effect.  That cushion of air that helps sustain an aircraft on initial takeoff stays with the Viceroy during its entire flight, reducing the power needed and extending the range. With today’s batteries, …

Three Silicon 500 Kilowatt-hour-per-Kilogram Batteries

Dean Sigler Announcements, Batteries, Electric Powerplants, Sustainable Aviation Leave a Comment

Suddenly, three battery makers have announced silicon-based 500 kilowatt-hour batteries, a major leap forward for possible use in electric aircraft.  The three use varied techniques to achieve this significant energy increase. Amprius We covered Amprius’ new battery on March 28, noting its successful record-breaking flights in AALTO’s Zephyr HAPS (High Altitude Pseudo Satellite) aircraft.  This frail-looking but obviously over-achieving machine has loitered over the desert of New Mexico and beyond for over 64 days and nights, powered by a combination of sunlight and Amprius batteries. The batteries in particular just keep getting better.  That record was set with the last generation of Amprius cells, but future flights will benefit from the verified performance of their new 500 kilowatts per kilogram batteries.  Mobile Power Solutions performed such tests, showing results of >504 Wh/kg and >1321 Wh/l at 25°C. Pierre-Antoine Aubourg, Chief Technical Officer at AALTO HAPS, looks ahead.  “We look forward to taking advantage of Amprius’ 500 Wh/kg cell to further …