EAS IX: David Calley’s Innovative Design and Use of Electric Motors

Dean Sigler Electric Aircraft Components, Electric Aircraft Materials, Electric Powerplants, GFC, Sustainable Aviation 0 Comments

David Calley is  member of the CAFE Foundation Advisory Board, with a great deal of technical expertise to offer.  His small wind turbine sold over 150,000 units.  His patented design for the TrailerTail® increases fuel economy on semi-trucks and trailers by 5.4 percent at 65 miles per hour, according to SAE tests.  Last year at EAS VIII, he showed the potential for small motors with incredible torque that could power Sky Taxis. At this year’s EAS IX he described, in depth, the type of motor design he has been developing to power things like his three-wheel electric/pedal-powered commuter vehicle and landing-gear wheels on Sky Taxis and even rocket fuel pumps. He asked the not-too-rhetorical questions, “How high can electric motor …

More Power without Rare Earth Minerals

Dean Sigler Electric Powerplants, Sustainable Aviation 0 Comments

Ricardo, a long-time developer of internal combustion engines, has become a major force in the electric motor field, too.   Its latest offering is an 85 kilowatt synchronous reluctance drive designed primarily for electric vehicle traction applications, made with advanced manufacturing techniques and no rare earth minerals. Without spilling any number beans other that the expected power output, Ricardo says that, “Using a conventional distributed stator winding, the Ricardo synchronous reluctance electric machine is a highly innovative design that makes use of low-cost materials, simple manufacturing processes and uncomplicated construction. It has a rotor made from cut steel laminations, which are used to direct and focus the flux across the air gap. By maximizing this flux linkage between the stator and …

Randall Fishman’s ElectraFlyer ULS – a Gateway Plane

Dean Sigler Electric Powerplants, Sustainable Aviation 2 Comments

Appearing before attendees at the 2013 Electric Aircraft Symposium, Randall Fishman’s spoke of great accomplishments and grander visions.  “ElectraFlyer ULS & Electric Ultralight Airplanes, the path to approval for all electric aircraft?” showed ElectraFlyer’s history and the ambitions Randall would like to play out. A pioneer in ultralights, Randall has been flying hang gliders since 1972, produced the first continuously powered electric aircraft, flew the first electric airplane at Oshkosh’s AirVenture and claims a primary interest of bringing practical, user-friendly electric flight to as many people as possible. Between 2005 and 2007, he designed, built and test flew his first electrically-powered trike.  Making its first take-off on April 29, 2007, by May 2 it had made a one-hour flight.  Ever …