Since Flying K Enterprises’ Sky Raider arrived on the scene 4 years ago, the ultralight design has achieved excellent success in the market selling more than 140 kits (not including the 65 or so fuselages shipped to SkyStar Aircraft which they use for their Kitfox Lite). However, the company behind the Sky Raider design has suffered in nontechnical ways.
Original Flying K principals brothers Ken and Stace Schraeder split up and started separate companies making ultralights. Then, only months after the split, Ken Schraeder was killed while flying a Sky Raider (see “Flightlines – Kenny Schraeder Killed in Crash,” April ’00 Ultralight Flying! magazine).
Despite these setbacks, the Sky Raider flies onward. In fact, Flying K Enterprises seems to be healthy and energetic despite the twin losses.
When the company shows their Sky Raider floatplane model and an example of their coming 2-seater, crowds often flock around the ultralights. I was full of anticipation to see how the floatplane would fly.
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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.
Airborne Streak
I am amazed. I didn’t think AirBorne Australia could do it, but they made their top-of-the-line wing called the Streak 2000 handle dramatically better than previous iterations.
Published in Light Sport and Ultralight Flying
Seating
2, tandem
Empty weight
476 pounds
Gross weight
992 pounds
Wingspan
32.4 feet
Wing area
167 square feet
Wing loading
6.2 pounds per square foot
Length
11.3 feet
Height
11.5 feet
Fuel Capacity
18.5 gallons
Kit type
Fully assembled
Airworthiness
Certified SLSA
Build time
Minor assembly from shipping container
Standard engine
Rotax 5821 or 9122
Power
66 hp at 6,500 rpm
Power loading
12.4 pounds per hp
Cruise speed
(middle hole) 45-60 mph (forward hole) 75 mph
Stall Speed
39 mph
Never exceed speed
93 mph
Rate of climb at gross
770 fpm
Takeoff distance at gross
590 feet
Landing distance at gross
575 feet
Range (powered)
350 miles
Fuel Consumption
3.3 gph
Notes:
1also available with the Rotax 503 engine (2000 Article).2Rotax 512 UL (2006 Article).
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.
New Kolbra ULT
For ultralight enthusiasts, the focus of this pilot report is on the Kolbra model that I flew in late summer 2000, fitted with the 66-hp Rotax 582. A King Kolbra version is also available, but because it is equipped with the 80-hp 4-stroke, 4-cylinder Jabiru engine, it cannot make FAR Part 103 trainer exemption weight limits.
The two new Kolbra offerings give The New Kolb Aircraft Company a better footing in the 2-seat market. Until now, of the five models New Kolb offered for sale, the Mark III was their only 2-seater. Another 2-seater, the low-wing Laser, never made it to market and the outlook appears uncertain for any introduction of that model.
The New Kolb Aircraft Company is clearly focused on 2-seaters. The company released a new version of their popular Mark III, named the Mark III Xtra, in the spring of 2000 and now the Kolbras. Their single-seaters – the FireFly, FireStar, FireStar II (with optional jump seat but no dual controls), and SlingShot – remain unchanged… and that’s a very good thing in my opinion.
Maverick
All right, what is this? A trike with no upper support? What does the designer think he’s doing, trying to be some kind of maverick? Well, yeah!
Kamron Blevins runs the show at North Wing Design. When I first met him, I’d call him a mere lad, except that makes me sound old. So, Kamron was a “young entrepreneur” from the Seattle area who made hang glider sails for a living. (His mom probably thought this sounded like as odd an occupation as you think it does.)
Funny thing, though. The kid grew up, got good at making wings, branched into trike wings, and now manufactures entire trikes. And you know what? It’s a darn good trike with some excellent thinking. Let’s look it over.
Youth Gains Experience
Blevins isn’t a kid anymore. But he looks around and sees all his old hang gliding buddies looking older, too. Some of them are using wheels on their gliders (as a backup safety feature for those not-so-perfect foot-landings).
Phantom
Thousands of other Phantom ultralights are flying, but the one I was about to fly was built by a bunch of kids. Although they were no doubt serious and focused during the building effort, the Phantom X-1 was named Child’s Play. Had I lost my mind?
“So, you’re really going to fly that ultralight built by a bunch of elementary school kids, huh?” The question was more than small talk. The prospect actually worried some observers.
“Of course,” I replied. “The kids probably did a better job than I could.” I’m no builder, a fact I often repeat. After flying airplanes built by all kinds of pilots, I didn’t see the jeopardy in flying the product of students at the Haverhill Elementary School in Portage, Michigan.1
I admit I looked over the Phantom carefully, but I found no flaws. Besides, long-time Phantom pilot and Phantom Aircraft Company president Pat Schultheis had already test-flown it and put hours on it.
Phantom X-1E
What would you do if you produced one of the best known and best loved classic ultralights in the world? If your name is Pat Schultheis and your brand is Phantom, you probably wouldn’t mess with success.
Known simply as Phantom to most folks, the proper name is actually the Phantom X-1. Even this model has gone through refinements over the years. And some builders have further varied the theme; one Phantom I flew had been converted to a taildragger – it was a blast.
A 2-seat Phantom model was tried years ago and newer efforts are underway at this time. The first effort, under the direction of then-Phantom company owner Jack Taylor, flopped so badly that after a short, challenging flight in the machine, I gave it back to the factory and told them I couldn’t report on it yet; it simply wasn’t right and shouldn’t be sold to customers.
Drifter SB
One-time Aussie distributor Chris Blackwell claimed sales in excess of 200 units – and this was the American-produced version from the Maxair company. It proved no impediment that Drifter kits had to be shipped halfway around the Earth to reach the land of kangaroos.
Sometime after this illustrious and energetic time, things went south for Maxair in more than just a financial way. Through a labyrinth of twists and turns, a Florida man named Don Jones ended up owning the one-time Pennsylvania company in a set of circumstances most charitably called “questionable.” At best, he kept the design alive. At worst, he sunk the design into near oblivion.
Fortunately, good things tend to stick around, regardless of how badly they’re treated. The Drifter is an example.
Perhaps because the Drifter made it to Australia in large numbers, the ’97 incarnation of the tandem aircraft now returns from the country on the bottom side of the globe.
Quicksilver’s GT 400
The GT 400 isn’t the fastest handling ultralight, nor is it the speediest, cheapest, most modern, nor fastest to build. But it does everything so well it doesn’t need to be tops at any one function. In this sense, I believe the GT 400 may be the best ultralight in the world.
While “best” means something different for virtually every pilot, I’ll go out on a limb and predict that any pilot who flies the GT 400 will find it a highly satisfying ultralight.
Fortunately for other ultralight manufacturers, every single pilot is different, a unique individual.
Still, for an estimated 1,000 current GT 400 owners – and the new buyers that will follow – the GT 400 single-seater that Quicksilver first offered in 1984 remains an excellent choice.
If you accept my opinion that the 400 is a desirable ultralight, then you may be moved to action by its pricing.
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