Today I present you the aerobatic model of the German F3A Aerobatic Champion 1972 Wolfgang Kosche. The model was called ‘KOGI’. KOGI means ‘Kosche-Gilik’. The … Read more
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Here you will find all reports published by us on various F3A / RC1 aircraft designs from 1960 onwards.
Pico 5 by Franz Mayr
Franz Mayr from Augsburg was a top German F3A pilot in the eighties. As early as 1973, he designed and built his own F3A aerobatic … Read more
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Dick van Mourik’s enlarged Mäxi
In recent years, I have enjoyed the process of successfully converting several “old-school” designs into the 21st century. However, it was more or less by … Read more
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Marabu Trainer
Finally, I present the Giezendanners’ aerobatic trainer design. There are two aircrafts in this new replica series: one is flown by Urs Leodolter, and the … Read more
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Doug Spreng`s Stormer
Our Belgian colleague, Edward Vandermeulen, has struck again. His latest work is a scaled-down replica of the Doug Spreng Stormer construction from the early Sixties. … Read more
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Dash Five by Yoshioka
October 2025: from our Spanish friend from Valencia, Alfonso Garcia Fuertes, we received photos and a description of the ‘Dash Five’ from Yoshioka that he … Read more
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We need your help: Identification ‘Extreme’
Our reader Philipp Stratemann has received an aeroplane from the eighties from his uncle. Apart from the fact that it is called “Extreme”, he has … Read more
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Hanno Prettner`s Primero 120
Retroday 2025: Urs Leodolter presents one of his latest achievements: The PRIMERO 120 by Hanno Prettner. Full content is available to paid subscribers only. Support … Read more
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Urs Leodolter`s ‘Scorpion 1’
Urs Leodolter, organiser of the annual Retroday in Pfäffikon, is a Giezendanner specialist. As a young boy, he learnt how to build and fly from … Read more
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Pierre Marrot`s Styx
Here is the world championship model Styx by Pierre Marrot, multiple French aerobatics champion and RC equipment manufacturer at Radio Pilot. Patrick Coly kindly provided … Read more
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Aerobatic Planes
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3, RC1 WC 1963 Belgium
Third World Radio Control Championships To Genk, Belgium, on August 21st, came thirty-nine competitors and a great many more “followers” for the Third World Radio … Read more
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9, F3A WC 1975 Switzerland
Aerobatic R/C Airplane World Championships BERN, 8.-13.Sept. 1975, THE World Radio Control Championships for aerobatic model aircraft came home for the ninth successive competition for the … Read more
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7, F3A WC 1971 USA
World Aerobatic Championships, USA 1971, a report by the well-known German RC author Erich Rabe at the time. I remember Erich. He was a member … Read more
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14th F3A World Championship 1985 Netherlands
Here is the report of the 14th F3A RC Aerobatic World Championship in Flevohof / Netherlands. Ernst Peter Kattelmann was the German team manager at … Read more
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6, RC1 WC 1969 Germany
F3A Aerobatic World Championship 1969, Lemwerder / Germany: We have revised the report and the photos. We have ‘spiced up’ the old photos with special … Read more
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1st RC1 World Championship 1960 Switzerland
We have revised and updated the report on the first World Aerobatic Championships in 1960 / Dübendorf. Our photos have been “colorized”. Take a look … Read more
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4th RC1 World Championship 1965 Sweden
A piece of contemporary history – a comprehensive documentation of the 1965 World Cup in Sweden with lots of details and background information. The gallery … Read more
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12, F3A WC 1981 Mexico
This report is about the F3A World Championship in Acapulco, Mexico. Thanks to Phil Stevens and Gerard Werion for the great photos. It’s photos like … Read more