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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.

Sebring is alive and well and gliding along better than ever. That’s more than I can say for the wireless where I’ve tried to post since Thursday night, so today, you get two point five posts for the price of one. *** First bit of news: Opening day Thursday was the best attended in the show’s eight year history (not five years as I doofishly reported the other day). Aiding and abetting: beautiful, absolutely beautiful weather. No hurricanes, no clouds of leaflets from Republican Presidential hopefuls, just a lavishly enjoyable (for us snowbirds at least) 70 degrees, with a steady 10 knot wind a good part of the day, followed by a crisp, clear night. Thank the Maker. *** Your humble blogster took full advantage of opening day by spending almost half of it shooting and flying the new BRM Bristell S-LSA (yes, it’s ASTMified). A very, very sweet ship.

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.

In 36 hours or so, Chief Pilot S. Claus will be on final for a few billion chimneys worldwide. Here’s what’s popping up in one of my last looks at LSA news webwide for 2011. Meanwhile, my best wishes for a Merry Flying Christmas and new flight horizons for all in 2012! *** Cubcrafters flexes its market success muscle with a new manufacturing facility and the hiring — yes, hiring! — of new personnel to build its popular LSA Piper Cub clones.  *** A newly leased 15,000-square-foot building near the Yakima, Washington airport boosts existing capacity by almost 40% and is already in operation. Congrats to CubCrafters and we wish you continued success. *** Included are a new welding shop and CNC (Computer Numerically Controlled) machine shop. *** The new space will make room in the main plant for an R&D facility and an updated, more centralized parts department.   *** Owner Jim Richmond says, “Our planes are selling well, and if we get even a little help from the economy, we will need to increase our production rate.”  *** Check out those job openings.