A Review of the Industry Consensus Standards Method
In the aviation world, the new light sport aircraft category is all the rage, with interest at aviation trade shows climbing off the charts. New aircraft certified using ASTM International industry consensus standards recently reached model number 50, with all approvals coming in less than two years, a record in aviation history worldwide.
Doing things correctly and quickly is not uncommon in the world of light sport aircraft. This is a highly entrepreneurial activity populated by get-it-done businessmen and women who are highly motivated to get their nascent industry off the ground – literally.
Welcome to Committee F37
ASTM International’s Committee F37 on Light Sport Aircraft is just five years old, yet it has produced, from scratch, specifications for design, performance, quality acceptance tests and safety monitoring for LSA. ASTM standards guide the preparation of pilot operating handbooks, maintenance manuals, and a system of service bulletins to advise consumers of maintenance needed to keep their aircraft in good operating condition.
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Beaver RX-550
Perhaps the most famous ultralight to come out of Canada is the Beaver. With a reported 2,200 units flying since the early 1980s, this is one of the most successful light aircraft ever. However, due to missteps by companies that previously manufactured the brand, this popular ultralight was nearly lost from the ultralight aviation landscape. Were it not for the Aircraft Sales and Parts (ASAP) company and the Holomis family, you might not have this choice today.
Originally the Beaver RX-550 came from a company called Spectrum Aircraft. A company reorganization left the ultralight in the hands of a company named Beaver RX Enterprises. Both these business names disappeared and today the ASAP brand carries the Beaver into the sky.
In 1993, a couple years after our last report on the Beaver1, the old company closed its doors and effectively stranded thousands of Beaver ultralight owners and all the dealerships that sold them.
Sport Pilot Tour Revs High at Historic Flabob
A fleet of shiny Special Light-Sport Aircraft assembled at historic Flabob Airport despite persistent high winds in the southwest. Under an usually clear blue sky, a record 17 models gathered at the vintage airport in Riverside, California. EAA promotional efforts attracted about 600 LSA-oriented attendees. Hosted by EAA Chapter 1 in their excellent facility provided through generosity of Poly Fiber developer Ray Stitts, a steady audience of 200 filled seats throughout the day to have their Sport Pilot questions answered by EAA expert Ron Wagner. One of the newest certified SLSA, the Luscombe Silveraire, is built at Flabob. Owner John Dearden showed me many dozens of pallets holding tooling dies once used to mass manufacture as many as 29 Luscombe aircraft per day! In the vast basin of LA cites, Flabob is an aviation oasis saved from home developers by the Tom Wathen Foundation which operates an aviation high school on airport grounds.
Gorgeous, Award-Winning Biplane from Duluth
EAA’s Minneapolis Sport Pilot Tour, plagued at first with some logistical challenges, came off very well. More than 500 LSA-interested attendees showed up at Airlake airport south of the Twin Cities metro. The local Sport Pilot school, LSA North at the Aircraft Resource Center, exhibited their CTs along with the Sportstar, KP-5, RANS S-6 and S-7 and others. One of the charmers was the award-winnng Hatz Bantam from builder Mark Marino. The Bantam is an evolution of the original John Hatz biplane designed in the 1960s. Leap forward in time and the lighter Hatz can be flown by a Sport Pilot. Previously only plans were available but Marino is now working on Hatz Partz, components that represents elements of a full kit. The 1,320 pound Bantam is powered by a 120-hp Jabiru 3300 six cylinder four stroke. It can carry a couple two hundred pounders and fly 110 mph.
Legend is First Cub to Sport a Jabiru Engine
Legend Aircraft‘s Cub is one of the top selling SLSA, ranking up high with Flight Design’s CT, Fantasy Air’s Allegro, Evektor’s SportStar, and TL Ultralight’s StingSport. Both American-made Cub-like designs (Legend’s and CubCrafters‘) have been 100% Continental O-200 powered because that engine is close to what was used in the original Piper J-3 Cub, which has driven demand from customers attracted to the vintage aircraft. However, the Cubs have higher empty weights than many of their smaller metal or composite competitors — CT and StingSport, being primarily carbon fiber airframes, weigh in almost 200 pounds lighter, for example. So, when operating at higher elevations or on floats, reported Legend staffer Pat Bowers, some owners felt more power would be useful. For several weeks the Sulphur Springs, Texas factory worked to install the Jabiru 3300. The six cylinder engine is 35 pounds lighter and has 20 more horsepower, a combination said to provided spirited performance.
Pioneer in Ultralight Industry Still Going Strong
John K. Moody is widely acclaimed as the “Father of Ultralights,” and he makes effective use of that unique title to publicize his new millennium act featuring his last millennium ultralight.
Is Moody really the father of ultralights or the first to fly one? Several other enthusiasts were experimenting with power units for various kinds of hang gliders in the mid-1970s when Moody started. His distinction was that he was the first person to foot-launch and climb from flat terrain without benefit of wind or a slope.
I saw Moody fly in the summer of 1975 when he performed before about 250 hang glider pilots in a contest on the sand dunes near Frankfort, perched on the eastern shore of Lake Michigan. He began this risky behavior on March 15, 1975, above a frozen lake southwest of Milwaukee, at age 32.
Into almost still winds at the end of a day of hang-gliding competition, Moody ran his heart out and coaxed his Icarus II biwing hang glider off the beach with a 10-hp West Bend engine giving him some push.
Simple Sprint Pleasures
Excelling at “Just For Fun”
Going back to our roots and the dandy little ultralights that have given in-flight satisfaction to so many, we’re going to take a look at one of those aircraft, Quicksilver’s MX Sprint.
Some veteran pilots call the MX Sprint “humble,” but it is one of those “original” ultralight aircraft that simply won’t go away, and it shouldn’t. Why? Because the Sprint still offers a joyful flying experience that redefines boring holes in the sky. You pilot a Sprint in relative ease and at remarkable low cost, and once price enters the discussion, many ultralights show their value clearly.
Many in light-sport aviation are realizing that aircraft certified Experimental Light-Sport Aircraft (ELSA) and Special Light-Sport Aircraft (SLSAs), even when approved under a simplified, industry-created, ASTM-guided program, will be rather expensive aircraft. Some sleek fiberglass creations are reaching toward the six-figure mark – an unbelievable development given that ultralights have historically traded in a range of $8,000 to $35,000, the latter being a superbly equipped, Rotax 912-powered machine.
It’s a Winner; CGS Hawk Sport
Given Chuck Slusarczyk’s decades in recreational aviation, I imagine almost everyone in ultralight aviation has heard of the funny, Polish-speaking pioneer with the hard-to-pronounce last name (Slew-Sar-Chick). If Chuck had named his first business Slusarczyk Glider Supplies, pilots would have stumbled and renamed it for him. Knowing his name is a tongue twister, he wisely called it Chuck’s Glider Supplies.
In his early business years, when Chuck was younger and slimmer, he made hang gliders. Lots and lots of hang gliders. I flew one, as did thousands of others. He was one of a handful of east-of-the-Mississippi hang glider manufacturers. Being a long way from the West Coast where hang gliding was centered back in the ’70s, Chuck made the Californians nervous. They couldn’t keep an eye on his developments and he was regarded as unpredictable. Those who knew him thought the word should be innovative.
Then came powered hang gliding, such as it was in those days.
IndUS – Thorpedo
All Revved and Everywhere to Go
This vintage design with a big Jabiru engine is an impressive performer.
Since its reintroduction to the aviation community by IndUS Aviation, John Thorp’s T-211 is generating more attention than at any time since he first designed the airplane.
While John worked on large aircraft, like the Navy patrol bomber P2V Neptune, he focused most of his career on small, sporty aircraft. He began designing a two-place light aircraft in the 1930s. By the 1950s his T-10 Sky Skooter powered by a 50-hp Franklin 2AC-99 engine evolved into the T-111 with a 75-hp Lycoming engine. Later it became the T-211, with a Continental O-200. It is this last version of the T-211 that IndUS now offers as a standard category aircraft. IndUS is also planning to offer the model as a light-sport aircraft (LSA) with a Jabiru 3300 engine, affectionately named the Thorpedo for its improved performance.
Product Lines – June 1995
ST. PAUL, MINN. — In April, USHGA continued what is now something of a tradition by having a strong presence at the massive Sun ‘n Fun airshow, one of the ways we can reach out to other potential new members. The Florida extravaganza has been closing on the world’s largest airshow — Oshkosh — and in 1995 nearly tied the big Wisconsin event for attendance. These conventions are the largest gatherings of pilots in the world, and I think it’s terrific hang gliding is represented. Even if you’re one of those who don’t desire growth, we need to be recognized among the greater community of pilots, if for no other reason than having some clout and contacts when one of our flying sites is threatened. ••• As if to show the effort is paying off, UNpowered ultralights were recognized in several significant ways this year. • A window was created daily to allow one hour of solely unpowered flying.