Just as we have competing teams working out their plans to cross the Atlantic on electrically-powered wings, several projects are aiming high, attempting to reach altitudes normally achieved only by SR-71 pilots. With balloon jumps topping 130,000 feet and the Perlan Project in final stages of construction for test flights early next year, the latest entrant in stratosphere-busting climbs will attempt the mission on batteries and solar power. Raphael Domjan, a self-described “eco-adventurer” and founder of Mission SolarStratos, will attempt by 2017 to top 80,000 feet in a two-seat, twin-motored craft designed and built by Calin Gologan and his PC-Aero team. The airplane, a long-winged derivation of Gologan’s Elektra Two Solar, will rely on recent developments between Gologan and his …
Reaching for the Sun
SolarStratos, a two-seat, solar-powered airplane, is being readied for record flights in Yverdon-les-Bains, Switzerland, just a 25-minute drive from the Solar Impulse hangars in Payerne. Its makers claim that it is the first commercial solar two-seater aircraft in history, and will be the first solar-powered airplane with a pilot to enter the stratosphere. These heady claims are described on the project’s web site as a “crazy bet,” but it’s too early to make such judgments. Calin Gologan of PC-Aero GmbH designed the base craft, an expansion of his earlier ultralight electric aircraft, Elektra Two. The “Record” version of this craft, despite SolarStratos’ extended 20-meter (65 feet, 7 inch) wingspan, weighs a feathery 140 kilograms (308 pounds) empty, and only 350 …