The Electric Firefly Sets Two World Records

Dean Sigler Electric Powerplants, Sustainable Aviation 0 Comments

Jean-Luc Soullier has converted Michel Colomban’s two-cylinder internal combustion MC-30 Luciole (Firefly) into an electric aircraft – not without some teething problems, but with plenty of promise.  His group, LSA, Luxembourg Spécial Aerotechnics, consists of Jean-Luc, Martin Marschner von Helmreich, and Fabrice Tummers – and has terrific ambitions. Fabrice, in response to questions about the record attempts, sent the following: “Our target in 2011 is to realize the totality of the world records of the F.A.I. in the category RAL 1E, and cross the Mediterranean Sea.  The first attempt [a speed record] was not ratified by the F.A.I. but the medium speed recorded was 160 kilometers per hour (99.4 mph) over 15 kilometers. (9.3 miles)” With the 118 pounds of batteries …

Would You Believe There Are Two Electric Cri-Cri’s?

Dean Sigler Electric Powerplants, Sustainable Aviation 3 Comments

EADS, the Airbus people, gained a high degree of publicity with their four-motor Cri-Cri, as reported here previously, but a new contender has outraced it. Didier Esteyne flew the EADS plane for the press and showed it to good advantage.  His mount was powered by four 15-horsepower electric motors, paired in pods on either side of the plane’s nose. The contra-rotating propellers gave a good performance judging from the in-flight video. EADS’ 60 total horsepower gave it a top speed of 141 miles per hour, but that was eclipsed by another electric Cri Cri, this one with a single 25-horsepower Electravia brushed motor on each stalk.  Bigger motors swinging bigger propellers gave it a speed advantage and a world record of 262 kilometers per …

What’s Small and Green and Has Four Motors?

Dean Sigler Electric Powerplants, Sustainable Aviation 0 Comments

At the extremely opposite end of the scale of its big brothers and sisters in the Airbus family, the Green Cri-Cri graced EADS’ (European Aeronautic Defense and Space) display at the second Green Aviation Show  (L’Aviation Verte) held at Le Bourget’s Aviation and Space Museum (Musee’ de l’Aire et de L’Espace) between June 18 and 22, 2010. LIke its bigger siblings, the Cri-Cri has four motors, two on each nose pod protruding on stalks like insect antennae from the nose of the miniscule craft and driving counter-rotating propellers.  The two small outrunner motors on each pod appear to spin with the propellers, and are probably concealed inside the spinners. EADS Innovation Works partnered with Aero Composites Saintonge and the Greencri-cri …