Background and target for the noise reduction
Last update: 21/7 2011
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The noise from F2D Combat must be reduced in the future:
At the seminar on noise reduction at the World Champs in Hungary the F2 subcommittee chairman Bengt-Oluf Samuelsson made it clear that F2D and all other control line classes must confirm to the general noise level set by CIAM and FAI. Today the noise level in F2D Combat is far from this general level (96 dB(A) @ 3 meter) and in the near future the combat community must do something to reduce noise. If we do nothing somebody else will make restrictions on F2D. At the 2010 World Championships in Hungary Rob Metkemeijer made a series of noise measurements and found that F2D models produces 101.5 dB(A) @ 3 meter. We must find a way to reduce the noise by 5.5 dB to be within the limit. You will find Rob's measurements and a lot of other interesting information in his interim report on noise in F2C 2013 Rules: Proposals for 2013 rules must be put forward to CIAM before 15 November 2011. Proposals will be debated and voted on at the April Bureau Meeting and Plenary Meeting. 19-21 April 2012, Lausanne, Switzerland. The target of the new noise restrictions: The target of the rules for noise reduction is only to reduce the noise. We must try to keep the current high flying speeds and dynamic fights. To keep as many pilots flying as possible it is important that the existing engines, propellers and models can be used under the new rules. With some small changes or adjustments it should be possible to use engines for a couple of years. If the noise rules will cause everybody to buy new engines there is a high chance of a drastic drop in the number of active pilots. Some pilots may even try to organize competitions outside CIAM/FAI |
2011 Seminar on Noise Reduction There will probably be a seminar on noise at the European Championships in Czestochowa. More information later. Seminar on Noise Reduction Hungary, 2010 Video from the meeting 2009 Belgrade Combat Seminar: Noise reduction by shut-off by Henning Forbech Proposal for 2011 rules: Introduction by Ingemar Larsson F2C Noise by Rob Metkemeijer  |
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