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HATZ CB-1 CLASSIC It took 10 years for Hansueli and Samuel Gautschi to complete the ultimate do-it-yourself project, and the result is an absolute gem. BY ERNST BICKMEIER I look up against the morning sun, machine is built. The sound of the nine- leather aviator helmet, and flying gog- barely able to contain myself. It’s still cylinder radial engine rings through my gles. He then helps his passenger out of early at Langenthal Airfield in Swit- entire body. The aural and visual sensa- the front seat. This time, it’s his mother zerland, and I have an appointment to tions bring me to a sense of euphoria. Therese who is the lucky one to enjoy the meet someone. Then I see and hear the There it finally stands before me—a flight, surely a good feeling, since she biplane I’ve been waiting for. Just the masterpiece that I have been following knows it took 10 years for her husband faraway silhouette and light hum of the since its inception. It has a certain radi- and son to build the airplane. engine make my heart beat a little faster. ance from the last century, the glory days Samuel greets me enthusiastically; we After an impressive flyover, the of the American radial-engine biplane. haven’t seen each other in a few years. machine enters the pattern and lands. The airplane parks, and for a moment My wife and I first met Samuel and his As it slowly motors over to the parking everything is still. Then the pilot, Sam- father Hansueli at the Frankfurt Air- area, all eyes turn toward the plane. The uel Gautschi, releases the seat belt and port in 2005. We were waiting for the closer it comes, the bigger my eyes get. lifts himself out of the cockpit. Every- same plane to take us to AirVenture. The details become clearer, and I admire thing he wears fits the vintage style of Any flying enthusiast who hasn’t been the degree of perfection to which the the biplane: brown overalls, white scarf, to Oshkosh really needs to go. 6 KITPLANES February 2017 www.kitplanes.com & www.facebook.com/kitplanes As we flew across the Atlantic, Hansueli and Samuel told us about their shared life dream, a father-and-son proj- ect of building a ’30s-style Hatz biplane. Ever since he was a little boy, Hansueli had been building scale models of planes, preferably old-timers. Later on, he became a pilot and flew taildraggers like the Piper L-4. As family life beck- oned, flying took a backseat, but the prospect of building a real plane was always in the back of his mind. It was Samuel who eventually brought the idea back to life. Like his father, he has always had an interest in aviation, having made his first flight in a Lus- combe 8F when he was just 11 years old. He was never really interested in build- Hansueli and Samuel outside the workshop at their home in Beinwil am See, Switzerland. ing models, so when he asked his father one day, “Can you imagine if we built Club, which frowns on replicas of the Classic, and plans and kits are avail- a real airplane together?” Hansueli was old design. If the Gautschis wanted to able from Makelan Corporation (www. very surprised. He was also all in. build a Gipsy Moth, flights into Eng- hatzclassic.com). Among the many land would not be possible. changes to the original CB-1 is the out- Deciding What to Build Next, Hansueli and Samuel looked ward appearance. The Hatz Classic is A trip to England allowed the father into the Hatz biplane. John Hatz more rounded and full, similar to the and son team to visit the centers of the designed the Hatz CB-1 in the 1960s, in biplanes of the 1930s. old-time aeroplane scene, the museums Wisconsin. His goal was to give amateur Hansueli and Samuel decided to build in Hendon, Old Warden, and Duxford. plane builders a more affordable alterna- a Hatz Classic. They intended to only They were greatly inspired by specialty tive to the very expensive Waco. Plans stray from the plans by making subtle restorer Retrotec Ltd. and Guy Black’s for the CB-1 are available from the Hatz changes that would make the completed Hawker restoration. But most impres- Biplane Association (www.hatzbiplane. project a more realistic representation of sive of all was the work of Ron Sauch, com), and there are more than 150 exam- aircraft from the nostalgic past. How- a specialist near Southampton, who ples of the Hatz flying in the U.S. ever, one modification was hardly sub- focuses on de Havilland Moths. In the mid-1990s, Billy Dawson of tle—they wanted a radial engine, not Excited by the visit to Ron, the team Texas built a modified version of the a typical horizontally opposed engine set their eyes on the Gipsy Moth. This Hatz that was named plansbuilt Grand that powers most of the Hatz fleet. plan had to be abandoned, however, due Champion at Oshkosh in 1997. This There was also another reason for to a general veto by the English Moth design became known as the Hatz choosing the Hatz Classic. Jürg Müller, a Swiss aircraft structural engineer and member of EAS (Experimental Avia- tion of Switzerland), had already built one, and he had made all the strength calculations. In Switzerland and Ger- many, this is a requirement for later sin- gle admissions of Experimental planes. Visiting the States Our paths diverged when we deplaned in Chicago. We had purposely arrived a week before AirVenture because my wife and I wanted to drive a rental car around the U.S. for a little bit. The Swiss father and son team had a more specific goal in mind: They wanted to go to Brodhead, Starting young: Samuel as a small boy with one of his father’s biplane models. Wisconsin, to the yearly Hatz Fly-in. Photos: Ernst Bickmeier, Samuel Gautschi, and Reto Schneeberger KITPLANES February 2017 7 Hansueli and Samuel show off the Vintage Hatz before covering the fuselage and wings with the Poly-Fiber system. A few days later, we met again at Axalp. I also visited the Gautschis at was certainly a compromise, especially AirVenture, at the Rotec booth. The their home in Beinwil am See, about an for Hansueli’s wife Therese, who sup- Australian company had a new 9-cyl- hour west of Zürich. I was amazed upon ported the project wholeheartedly, in inder radial engine, and its 150 horse- arrival—big windowpanes in the attic exchange for a terrace equipped with a power was the perfect amount of power give a direct view to the workshop, a whirlpool bath. for the Hatz. When Hansueli and Sam- sight that would make any amateur air- I sat in the cockpit and really felt how uel heard a plane with a Rotec approach- plane builder’s blood rush. the project is the realization of a lifelong ing, everything for them became clear. The image of the still skeletal fuselage dream. Through the pilot’s windshield, I They signed the contract for the R3600 and wings inside the shop were quite a saw a photo hanging on the wall. It was that same day. sight to behold. A sign that says “Aero- an image of a tiny Samuel sitting in front Hansueli later told me that the radial plane Works” hangs from the entrance of a biplane model made by his father. engine was the icing on the cake and door. And then there are all the spe- The mini Waco is almost bigger than exactly what he had in mind. “I would cialty machines inside the workshop, the toddler. The picture made it clear like to beguile the observer a little bit,” some of which are self built for any kind to me how the passion for a biplane was he admitted. “With the first impression, of work with wood or metal. This does passed down from father to son. they should think they are looking at a not look like the workshop of a hobby- For the next few years, I followed the Waco QCF.” ist; it is more like that of a professional developments from afar. In July of 2011, The Gautschis visited Oshkosh and specialty manufacturer for individual Hansueli and Samuel celebrated the the Hatz Fly-in in Brodhead again in plane construction. first outing of the fuselage at their base 2008 and 2011, staying in close contact Hansueli admitted that the profes- airport, Beromünster. In 2012, they with the Hatz community in the U.S. sional atmosphere was intentional, conducted a successful strength test for any inspirations or suggestions dur- just in case they find a demand for of the wings. Eventually they covered ing the building process. custom-built airplanes, after they fin- the fuselage and wings with the Poly- ish the first one. To accommodate Fiber system. Hansueli meticulously Making Steady Progress both their current project and any researched the history of biplanes, hence We saw each other again in 2010 at potential future ones, they completely the coloration; the night blue and light the Swiss Air Force Live Fire Event in rebuilt the attic of their house. This ivory combination, cut through with 8 KITPLANES February 2017 www.kitplanes.com & www.facebook.com/kitplanes a thin gold line, harks back to an early Langenthal airport. Unfortunately, I’m H&S AEROPLANE WORKS color scheme. not allowed to fly with them, as they’re VINTAGE HATZ Samuel was the experienced techni- still figuring out permit issues.