MACA, a French startup based in southeast France, unveiled its Carcopter, a hydrogen-powered flying Formula-1 at CES 2021 last week. Founders Thierry de Boisvilliers, and Michael Krollak, both veterans from Airbus Helicopters, aim at creating a Formula 1-type competition for flying cars to accelerate innovation in the zero-emission VTOL (Vertical Take-Off and Landing) market while …