Events of last fall changed many things, among them the FAA’s action to push through the proposed sport pilot rule with its definition of a new class of aircraft.
Work on the proposed rule has slowed as the FAA focuses on efforts to ensure the air transport system is intact for millions of airline travelers. New rules for aircraft flown primarily for fun were necessarily put on the back burner.
As we’ve noted in these pages before, the proposed rule offers significant promise to light aviation, and many experts are sure that the sport pilot NPRM (notice of proposed rulemaking) will still be released for public comment, followed at some point by a new rule. Certainly it represents a breath of fresh air, and that may be just what a beleaguered FAA needs come springtime.
Possibilities
I’ve had the pleasure of flying a great many of the light aircraft introduced over the last 25 years.
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American Trikes
Made in the USA and Yankee friendly!
Many pilots and even some experts believe trikes are a European innovation. Indeed, producers across the Atlantic took the breed to new heights, yet the fact remains that the earliest commercial producers of weight-shift trikes were here in the United States. In the early 1980s trikes were primarily an American phenomenon.
In the early days, before ultralights
had been defined, hang gliders
added power and slowly evolved to
use wheeled carriages. The first
producers included brands that
transitioned from the hang gliding
world, such as Soarmaster, Bennett
Delta Wings, and Flight Designs (no
relation to the German producer of
the CT). All of these American names,
and a good many more, are now
gone.
Today, when you hear the word
trikes, you may think of Air Creation,
Cosmos, Pegasus, AirBorne, or other
companies from Great Britain,
Europe, or Australia. Most of the
development work in trikes has
seemed to come from imported
brands.
First to Achieve Light-Sport Aircraft Status?
Discounting coordination qualities, steep turns, well, all turns went very well in the GT 500; it is very precise in handling. You can always point the plane where you wish.
Many pilots, especially those trained in general aviation aircraft, love the yoke. I much prefer a joystick. This is personal preference, but you can’t fault the execution of the yoke arrangement in the GT 500. Like all components, it’s very well done.
Since I’d just flown the Flight Design CT before the
GT 500, comparisons were easy. Handling in the composite CT aircraft was much more fluid (though that may not suit everyone). The CT could also fly nearly as slowly over the fields as the GT 500, showing the possibilities in new aircraft designs.
The GT 500 behaved very properly at speed. Cruising at 90 mph indicated, the design felt very solid and gave every assurance. However, at 4,200 rpm and 50 to 55 mph, I experienced almost a continuous shudder that seemed to come from the tail.
Sky Raider Goes Tandem
Part-Time 2-Seater
Like the Kolb FireStar II, the Sky Raider II has a second seat for occasional use – but not for flight instruction. After flying with 165-pound Grant Rappe – a long-time Sky Raider pilot – as my volunteer rear seat passenger, I feel that two big fellows won’t fit. And even with small rear-seat occupants, you probably won’t want to fly for too long. Nonetheless, if you want a ride-along jump seat for occasional use, but you truly prefer single-seat handling and you don’t want to pay a bundle extra for the second seat and dual controls, the Sky Raider II might be for you.
Admittedly you have other choices in this vein. French trike maker Air Création addressed it with their Buggy. Here’s a 2-seat aircraft, which the manufacturer says is mainly intended for single-place operation. The New Kolb Aircraft Company has two models that can do this (the FireStar II and Slingshot II) and of course, the very similar Rocky Mountain Wings Ridge Runner Model II also works much like a Sky Raider II.
Slipstream Industries’ Simple Scepter
To many observers, SlipStream Industries is a different ultralight company. As they exhibit in the ultralight areas of big airshows, we know their heart is in the right place (as far as Ultralight Flying! readers are concerned anyway). But they also make twin-engine aircraft.
One way SlipStream distinguishes itself among all light aviation enterprises is by offering not one, but two twin-engine aircraft. The line-up includes the SkyBlaster, which was recently renamed Gemini Twin to differentiate the name from SkyQuest, SlipStream’s other twin. Gemini Twin is a rare fore-and-aft arrangement using two 50-hp Rotax 503 engines. Certainly it is the only one with this configuration in the ultralight field and it draws some analogy to the famous Cessna Sky Master. Hence its closely related former name.
Before the SkyBlaster/Gemini Twin, SlipStream developed and still sells another twin, the SkyQuest. Like its sibling, this twin aft engine pusher design uses the ultralight-standard 50-hp Rotax 503 dual carb as powerplants.
HKS Hurricane Hauler
Last year, the 60-hp HKS 700E 4-cycle engine burst on the ultralight scene with more impact than I’ve noted since Rotax established itself as the engine of choice for ultralight enthusiasts. Among those embracing the new designed-for-light-aircraft powerplant was HY-TEK Hurricane, manufacturer of the Hurricane brand.
In the years since Mike Kern took over the Hurricane, he has shown savvy about the ultralight marketplace. He was able to see where he could enlarge his potential customer base, and his quick acceptance of the newly-available engine proves this.
Despite years of good success with high power-to-weight ratio 2-stroke engines, lots of would-be ultralight buyers remain unconvinced. A Hurricane with a 4-stroke gives HY-TEK the chance to appeal to those buyers and more.
In addition to ultralight enthusiasts looking for more, Kern sees a market in those hordes of Cessna drivers who want something different. A new Hurricane with the HKS 700E fitted is priced below all but the most worn-out general aviation planes, and can be more fun than operating a heavier aircraft that was built as a transportation device rather than a joy machine.
New Kolb Aircraft
Sometimes I’m amazed that we’ve now got ultralight pilots buying engines that cost more than $10,000. Twenty years ago, Eipper Formance (Quicksilver) sold complete ultralights that cost $3,499. Even in the ’90s, many complete ultralights – engine and all – cost less than the price of a Rotax 912 4-stroke engine on its own. One that meets that description is Kolb Aircraft’s Mark III with a 50-hp Rotax 503 dual carb 2-cycle engine.
Nonetheless, the 81-hp Rotax 912 has invaded the realm of what is loosely called “ultralight” flying. Of course, a Rotax 912-powered aircraft simply cannot be used on a single-place Part 103 ultralight. And any 2-place plane with a 912 is less likely to qualify as an ultralight trainer under the training exemption to FAR Part 103; the big engine may push the plane too fast and could make it heavier than 496 pounds (the ultralight trainer empty weight limit).
Interplane Skyboy
In May 2000 I wrote about the imported Sabre Aircraft Venture trike. That model from the Ukraine was quite impressive and worthy of your consideration. Now from the Czech Republic comes the Interplane Skyboy. Should Yankee ultralight manufacturers show concern? Yes, I’d say so. However, American pilots – while perhaps showing an interest in imported designs – don’t seem to buy a lot of these planes. Or do they?
In recent years we’ve seen trike sales soar. Few industry leaders predicted this despite the persistent efforts of the big European trike builders. Many veterans claimed trikes would never have an impact on the majority of pilots who prefer 3-axis controls. They are being proved wrong, for now anyway.
A key reason that holds back U.S. purchases of imported aircraft has to do with local support. Even a good importer can’t always control when spare parts are available. Interplane solves this dilemma in an interesting way and with American style: they bought the Czech Republic factory.
Rans Stinger
The original concept and final design Stinger appear to share only two things. First is the name – S-17 Stinger – and the second is the little bumblebee logo. In every other case I could discern, the finished Stinger is a totally new design from Randy Schlitter’s original idea.
Stinger version two flew for the first time on September 10, 1999. Barely a week later, I found myself aloft in the new ultralight. Normally, I’m not anxious to jump into a manufacturer’s brand-new design. I much prefer waiting until they have the design fully worked out.
However, Randy Schlitter has an excellent reputation for airplanes that seem to fly right off the drawing board (or out of the CAD program these days). He’d put some hours on the Stinger and had given it his blessing. I observed him fly it first and by all measures, it appeared to be ready for evaluation flying.
Golden Circles
As with many ultralight aircraft brands, when single-seaters become dual machines the machine gets heavier and more complicated. And when ultralights get heavier, they often don’t work quite the same.
Since flight school operators and pilots wanting to carry a friend request 2-seat capability, ultralight manufacturers respond, trying to get as close as possible to single-seater feel. But this isn’t simple. Two-seat ultralights often give up some of the qualities that make a single-seater pure joy to fly.
However, designers make constant refinements in ultralights.
Look around at airshows. Most of the ultralights on display these days are well-built machines with lots of custom hardware. Nearly every one got that good employing the CANI approach – Constant And Never-ending Improvement.
Golden Circle’s T-Bird II is one model that has seen subtle but noticeable improvements that make the breed better. Even to those intimate with the Iowa ultralight producer, these changes may evade your inspection.