An in-depth look into the history of the FAI Aeromodelling Control Line Speed class F2A, which saw its first World Championships in 1951 in Knokke, Belgium (the local council were very accommodating towards this new sport!)

Over the years the models have developed into the 21st century to adopt carbon fibre components and become completely asymmetrical. From the days of toxic fuel, nowadays fuel is 80% Methanol and 20% Castor oil in the F2A class, but a new challenger has arrived with an electric motor: meet the F2G model...

• To read more, download the full content of the latest CIAM Flyer edition in PDF format: CIAM Flyer (1-2025) - Control Line Speed
• Current and past issues of the CIAM Flyer can also be downloaded on the CIAM Flyer page

View of an F2A model: one blade prop, the pan, the dolly and the pipe

An F2G model with electric motor and 2-blade propeller

Lluis Parramon of Spain: 8 World and 5 European Champion titles. Photo taken in Sweden in 1996 where he achieved 311 km/h

Paul Eisner of Great Britain, World Champion in 2016