N Is For Noise, D is for Deliveries*

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

A July, 2017 article in New Scientist reported that a small test group found “the noise of drones more annoying than that of ground vehicles.”  This has implications for enterprises such as Amazon and Google that hope to perform home deliveries of various goods, including food.  Almost as a refrain, the Wall Street Journal reported in December, 2018 that, “Wing – the  drone delivery company that spun out from Google — was annoying residents in the Australian town where it tests its services.”  Folks in Bonython, the down-under township where the company had set up shop, “Likened the sounds of the original delivery drones to a “chain saw gone ballistic.”  This caused some to spend less time outdoors, and dogs evidenced signs …

A Flying Bike! But the Pilot’s a Real Dummy

Dean Sigler Electric Powerplants, Sustainable Aviation Leave a Comment

We reported here last year on a flying bicycle being designed by Duratec Bicycles and Evektor Aviation using Dassault 3D CAD software.  The companies revealed their actual flying demonstrator at a press conference this week, but the pilot stood nearby with a radio control transmitter while a mannequin was flown around the large room. http://www.youtube.com/watch?v=vUUmRXNR52M For now, it can do that for only five minutes, but Michael Duchek, technical director for Duratec, has hope.  “Because the capacity of batteries doubles about every ten years, we can expect that in the future the capacity would be enough for the bike to be used for sports, tourism or similar things” Its six propellers arranged much like a quadrotor, currently popular with design …