Search Results for : motorglider

Flying with Juice
As an airplane approaches, a whirring sound accompanied by a
barely discernible whine and a mild propeller buzz exhibit a
Doppler effect as the plane passes overhead. What is that curious noise?
We are intimately attuned to internal combustion engine sounds –
some experts claim they can identify the brand and size of an engine
simply by listening to it run. We’re less aware of electric motor noises
because we quickly tune them out. Electric motors run everywhere in
our lives – in our refrigerators, our computers, in our ceiling fans, and
numerous other appliances. Most motors – it’s incorrect to call them an
“engine” – are exceptionally quiet, and that’s a good thing.
One wonders if relatively quiet electric motors on aircraft will invade
our piston-powered world, especially given noise sensitivity at many airports.
Some say, “We’re about to see if electric works.” I say, “We’re seeing
it right now!”
Two years ago, I wrote about ultralights – literally Part 103-compliant
ultralights – operating remarkably well on electric power.1 In the ensuing
months, more projects have been announced.

The show I look forward to the most every winter is the Sebring U.S. Sport Aviation Expo, the premier gathering of Light Sport industry vendors in America. *** This is the eighth go ’round for the expo; each year it offers more pure fun for LSA pilots present and future. *** This year sports a noticeably upscale look, with new management (show founder Robert Woods remains very active in the show) and a stronger promotional flavor. *** Major sponsors this year include our own Plane & Pilot! *** The four-day gathering, which kicks off next Thursday, Jan. 19, promises to be the biggest show yet. *** Lots of return and new LSA exhibitors, display booths with the latest hot gear, and symposiums, including the new Bristell low wing monoplane and Pipistrel Sinus 50-foot span motorglider, both of which I hope to fly for future reports.

A couple fun things before I lose the day entirely.Just got word from Tecnam today, via Plane & Pilot publisher Mike McMann, that the Italian aircraft producer has adapted one of my favorite LSA, the P92 Echo and Eaglet (trainer version), for water operations. *** Dubbed the P92 Sea-Sky Hydroplane, this waterbird should prove to be yet another fun entry into the SLSA sweepstakes. *** My impression of the Eaglet remains: a lively, forgiving, fun-to-fly all metal trainer that I expect will appeal even more with web feet, for those of aquatic inclinations. *** Some details: The Hydroplane is the 6th generation model of the successful P92. *** Takeoff run is spec’d at under 200 meters, along with “an impressive climb rate” from its 100-hp Rotax engine. And I wonder how the Eaglet’s landing performance, for example (26 knots, full flaps, no power) will translate to the water and extra weight.

Everyone gets the big scare speech early on in their flight training: “If you lose power on takeoff,” say our trusty CFIs, with the requisite sobering tone of voice, “DO NOT try to return to the airport if you are below X feet above ground… always find an emergency landing area somewhere ahead.” *** Everyone has their favorite altitude number for “X”, which is a factor of many variables, including aircraft engine off glide ratio and density altitude. Usually it’s a comfortably conservative number, say 1000 feet minimum AGL. *** There’s a good reason for that cautionary buffer zone of course: many pilots — and passengers — have died trying to make the killer turn back to the airport from too low an altitude. *** In an attempt to demystify the infamous “Impossible turn”, AOPA online managing editor Alyssa J. Miller goes about the worthy business of investigating firsthand just how high one should be above launch airport altitude to feel safe about turning back for that oasis of engine-out safety: the runway.

Even those who are not Apple fans agree the trend-setting California company’s focus on design beauty draws attention to their products. From their position near the back of the pack a dozen years ago, Apple has become the most valuable tech company in the world. Could this be due to their highly-refined sense of esthetics? More to the point of aviation enthusiasts, is artful design an ingredient in pleasing customers? *** I don’t know what all buyers are thinking but beauty has long enhanced the appeal of most consumer products. It seems the so-called niche aircraft producers have gotten this message perfectly well. Especially this is true for those products that have emerged since Light-Sport Aircraft burst upon the aviation scene. *** Creators of new LSA seaplane designs in particular seemed to have found the religion of design esthetics. Icon leads the pack with their stunning — and extremely well presented — A5.

(Note to my readers: the first part of this tome is just below) *** So here I was in Slovenia, unable to fly and three more days before I could return to my wife in Hamburg, unless I wanted to pay another $200 to change the flight. Modern air travel, what a concept. *** Undaunted and determined to enjoy my first visit to this lovely country after two days in bed with a virus (the physical kind, not the airplane), I crawled back into the light and joined up with Rand for a thoroughly enjoyable factory tour, courtesy of Ivo’s daughter Taya (she’s also a partner in the firm), who speaks very good English indeed and gave us a very informative and enjoyable peek at how the company does it’s day-to-day.And what a factory! High tech geothermal heat, solar power (enough to run the entire factory year round, and sell excess back to the grid) and open, sunny, airy spaces all make for a wonderful working environment.

Posting from Istanbul, Turkey where I’m on vacation with my family, but just couldn’t wait another day to talk a bit about what most everybody in aviation’s been talking about these last several days: the CAFE Green Flight Challenge (GFC). *** History was made when the Pipistrel Taurus Electro G4 twin-fuselage electric-powered aircraft carried four adults, around 1000 lbs. of batteries, one electric motor with a bit prop, and a lot of engineering and piloting savvy to victory in the GFC. They earned themselves $1.35 million in the process. Huge and well-deserved congratulations to Pipistrel!But for my money, the deeper story is not just that they flew off with the biggest aviation dollar prize ever, or even that they accomplished the task of flying 200 miles on one battery charge while also averaging more than 100 mph for the entire flight, or that they did it while “burning” the equivalent of 1 gallon of gas per passenger, or four gallons total…but…that they accomplished all that yet consumed the equivalent of around 1/2 gallon of gas per passenger!