eSpirit of St. Louis Runs at Oshkosh

Dean Sigler Batteries, Electric Aircraft Components, GFC, Sustainable Aviation 0 Comments

One of the biggest thrills this year at Oshkosh was getting to see Eagle Flight Research Center’s DA-36 run its YASA electric motor.  Eagle Flight, an outgrowth of Erik Lindbergh’s Powering Imagination program he’s been pursuing for the last several years, aims to create quiet electric aircraft that will carry sight-seers over National Parks and Monuments.  Such flights would not disturb people or wildlife below, and would give a Gabriel’s eye view of the most pristine places in our country. International Approval His ideas have met with international support.  As noted on the YouTube video of their meeting, “… Flavia Schlegel (Assistant Director-General (ADG) for the Natural Sciences) at UNESCO in Paris… gave an enthusiastic endorsement of our eSpirit of …

Solid State H2 Storage on Mini-UAV

Dean Sigler Electric Powerplants, Sustainable Aviation 0 Comments

A handful of little white pellets holds enough hydrogen to fill a good-sized balloon.  At least, that’s the claim of executives at Cella Energy, a spinoff of Oxford University researchers.  The blog has covered their work twice, once with their claim that their hydrogen pellets could replace gasoline for the equivalent of $1.50 a gallon, and once for showing a method for pumping fresh pellets into a fuel tank after extracting the spent pellets. Their latest project, partnering with L2 Aerospace, converts a small unpiloted aerial vehicle (UAV) to run on hydrogen powering a fuel cell. The partners have been flying the UAV since January, 2014 and are now showing it at different expos in America and Europe.  The power …

163 Horsepower from 25 Pounds

Dean Sigler Electric Powerplants, Sustainable Aviation 4 Comments

ThinGap, LLC is well known for small motors with excellent performance characteristics, eliminating the use of iron and its resultant “lossiness” and depending instead on copper foil, rather than wire windings for its internally clean structure. The design leads to a lack of “cogging,” that notched feeling found when turning over some motors by hand.  Each individual magnet causes the rotor to stop, or “cog,” sometimes making low-speed operation a bit hesitant and smooth transitions difficult.  That, the unique ring design and an aluminum housing help carry heat away and allow for an internal controller. ThinGap have focused on smaller unmanned aerial vehicle applications for many years, but have moved into larger automotive and aircraft products, with one model in …