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Dean Sigler

Dean Sigler
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Electric Triplanes, Personal Sky Taxis, and Urban Mobility beyond Belief

The Third Annual Sustainable Aviation Symposium again promises to be the premier gateway to innovation, mind-expanding discussions, and a glimpse into the future that this gathering will help make possible. Reserve your spot today to be on the leading edge of that future. VTOLs, ESTOLs and the Future of Sky Transit, May 11 and 12 […]

Prandtl Wing, Goldschmied Fuselage

Attendees at the 2017 Sustainable Aviation Symposium (held in San Francisco, California) could be forgiven their startle reactions when they confronted a science-fiction like scene at one end of the hall, washed in blue and green lights. A 50-foot wing suspended over a large, cleanly streamlined body was at once exciting and puzzling. What were […]

CAFE Electric Aircraft Symposium, Part Three

The last six speakers closed out the afternoon session with aircraft, regulations, and ways to manage all the new traffic. Mark Moore, NASA, Silicon Valley VTOL Air-Taxi Study Dr. Moore started with an overview of all the unused Los Angeles helipads, required by law on every new high rise since 1974 until eliminated by Mayor […]

CAFE Foundation Electric Aircraft Symposium, Part Two

John Langford: Aurora Flight Sciences and the Lightning Strike Dr. Langford opened the second day with background on strides his firm has made in creating an unpiloted vertical takeoff and landing machine. The Lightning Strike is a 10,000 to 12,000 pound, high-speed craft with a turbine from partner Rolls-Royce and triple generators from partner Honeywell, […]

Convergence at CAFE’s Electric Aircraft Symposium

The 10 Annual CAFE Electric Aircraft Symposium, held at the Marriot San Francisco Airport on May 19 and 20, visited topics of electric propulsion, aircraft, airspace, and control of the various types of craft that will be sharing the skies in the near future.

Pioneers and New Directions

At the Sustainable Aviation Syposium, several speakers presented talks on controlling the coming wave of unmanned aerial systems traffic management (UTM). Part 3 of our coverage.

Motors, Batteries, Solar Cells and Hydrogen – Power for Future Flight

While we're still waiting for the battery breakthroughs that will let us fly infinite distances without recharging, several motors await energizing from whatever source is available. Speakers at the First Sustainable Aviation Symposium included solar energy, new battery chemistries, fuel cells and hydrogen, or even the regenerative power of the air itself in their presentations.

Sustainable Aviation Symposium

The First Sustainable Aviation Symposium was held May 6 and 7 at the Sofitel Hotel in San Carlos, California – just around the corner from the Hiller Aviation Museum. Over 120 attended, rubbing elbows with the speakers and learning about the latest in electric aviation and forward-thinking approaches to the challenges to come from increasing […]

Alternative Energies

Making those final connections. By Dean Sigler.

Alternative Energies

Motor controllers—making DC into AC. By Dean Sigler.

In Case You Missed it

Behind the Rope Line

A day in the life at Sun n Fun Air Ops. By Steve Kessinger.

Kit Stuff

Drawing on experience; by cartoonist Robrucha.

Wind Tunnel

How do the power-to-weight ratio, wing loading, drag effects and propeller choices affect an aircrafts climb rate and climb angle?

2013 Engine Buyer’s Guide

For homebuilders, power is a top-of-mind issue, and engines are among their most important decisions. From the familiar Lycomings and Continentals to the options in radials, here’s what the traditional aircraft-engine market offers.