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.
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Cosmos Samba
You may know pilots like this. Heck, you might be one of these folks. Large numbers of them help manufacturers get trick new hardware on the market. Their willingness to try fresh concepts and their enthusiasm for all things new make purists an essential part of flying.
One type of flying purist is the sort who prefers to stick with a FAR Part 103 ultralight. The genre helps define ultralights in general – we fly them because we like them, not because we’re hoping to grow up and become an airline pilot someday. Purists prefer the simple honesty of Part 103 flight.
Slow-flying ultralights allow flight closer to fields and trees and landmarks. Amazingly short takeoff rolls and uneventful stalls make these basic machines easy to enjoy and give them versatility as to the size airstrip required. Low cost and operating expense help convince even more pilots. So, if all these things are good, why not make them the best they can be – the slowest flight, the shortest takeoff, the lowest cost?
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).
Aeros Venture from Sabre
Only a little more than 10 years ago, the wall fell in Berlin, Germany and Communism collapsed in the USSR. Before these momentous events, few Americans knew anything about the Ukraine (which was part of the USSR) and even those who did were largely unaware of its ability to produce aircraft.
Yet by the mid-1990s, some Americans became aware of a Ukrainian company named Aeros. One man became an importer of their hang glider line. G.W. Meadows and his Thermal Riding Vehicles business sold so many hang gliders from the former Soviet satellite that the American market leader, Wills Wing, had to drop prices to remain competitive with the lower cost hang gliders from eastern Europe.
In this article I’ll review the Venture, the newest Aeros model for the American ultralight market. But this new Aeros ultralight follows the Aeros Antares (once known as Graffiti), reviewed in the December 1997 issue of Ultralight Flying!
Flying Sky Raider
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.
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).