Sustainable Skies in San Francisco – the Sequel

Dean Sigler Electric Powerplants, Hybrid Aircraft, SAS, Sky Taxis, Sustainable Aviation Leave a Comment

Getting personal once more, this entry highlights my adventures at the 2018 Sustainable Aviation Symposium as reported in the first person. The Sustainable Aviation Symposium for 2018 began its Saturday session with J. Philip Barnes, the Senior Technical Fellow at Pelican Aero Group, who expanded an idea he has been developing for several years – that of flying on energy generated and stored by a self-launching sailplane’s motion through the air.  With both a single-seat Coulomb Keeper and larger Faraday First model to analyze, Phil turns to seminal works by Glauert and MacCready to create a motor/generator coupled with a propulsion fan that doubles as a propeller and windmill.  Clever use of switching in the control circuitry should enable high-efficiency prolonged flight exceeding what would be possible with batteries alone.  Phil’s website is well worth checking out, providing historical and engineering insights at every opportunity. Boris Popov, founder of BRS (Ballistic Recovery Systems) has saved 380 lives (and counting) with …

Seventh Annual Electric Aircraft Symposium Unveils New Technology

Dean Sigler Electric Powerplants, Feedback, Sustainable Aviation 3 Comments

This year’s CAFE Foundation Electric Aircraft Symposium in Santa Rosa, California had surprises from several sources, including new aircraft, batteries, and materials that will help make the future a good place to be.  Some technologies are maturing and some are about to spring forth in ways we won’t see coming. We’ll be looking at each presentation in detail in future postings, but know for certain that the electric aircraft movement is turning a corner as things become integrated in an ever-quicker progression.  We will see significant announcements in the next few months. The Symposium included not only technology, but seriously looked at how neighborhoods and society in general can integrate these new technologies in a more responsible way than the current helter-skelter world which pulls us away from family and community.  What point is there in having magical things and messy lives?

A Personal Introduction

Dean Sigler Uncategorized Leave a Comment

I’ve been asked by Dr. Brien Seeley to host the blog for the CAFE Foundation, a great honor, and one which I will attempt to serve with the same kind of dedication and intelligence the Foundation board members provide in their service to aviation.  Because these postings will reflect the goals and aspirations of the Foundation, I feel a need to be as objective as possible, and to report on things that have value and benefit to people interested in finding solutions for the matters that concern all of us – aircraft efficiency, new powerplants and fuels, climate change, and possibly even things such as structural concepts and techniques that can contribute to meeting the outcomes we seek. In return, I ask for constructive criticism and respectful arguments, from all and addressed to all.  We are able to find truth in considerate dialogue, and if one remembers the Socratic method of teaching, perhaps we will all learn something along the way.   …