First Flight of Rolls-Royce’s ACCEL Project

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

Rolls-Royce has made a first test flight of its ACCEL Program’s “Spirit of Innovation,” their 400 kilowatt (500+ horsepower) electric record-seeking craft.  Powered by a stack of three YASA (Yokeless And Segmented Armature) motors, the Spirit flows from Jon Sharp’s NXT design, usually powered by a 540-cubic-inch internal-combustion engine.  The video includes a short nod to Rolls-Royce’s involvement in aviation that leads to the current project. Rolls announced the successful first flight with an important accomplishment and a hopeful prediction.  “We are pleased to announce the completion of the first flight of our all-electric ‘Spirit of Innovation’ aircraft. At 14:56 (BST) the plane took to the skies propelled by its powerful 400kW electric powertrain with the most power-dense battery pack …

Big Frog Diesel Racer – A Different Kind of Green

Dean Sigler Diesel Powerplants, Sustainable Aviation 2 Comments

There are only 10 Nemesis NXT racers in the world, and one happens to be in France, getting tuned up to compete in this year’s Reno Air Races in about 10 weeks.  On display last month at the Paris Air Show, the lightweight, carbon-fiber racer lacked the usual Lycoming IO-540 engine, a six-cylinder powerplant that cruises the 1,500 pound two-seater at 325 miles per hour. Aviation International News Online’s Olivia Saucier reported, “The Big Frog racer is getting attention for more than just its tongue-in-cheek patriotic name. The French aircraft is the first carbon-fiber race plane to run on a Diesel engine powered purely by jet-A fuel. And it is turning heads here at the Le Bourget show. “Big Frog …