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Напоминаю правила маркировки моделей
FAI Sporting Code
Section 4 - Aeromodelling CIAM General Rules
2019 Edition
Страница 34
C.11 IDENTIFICATION MARKS
C.11.1 Class F - Model Aircraft
a) Model aircraft, except for Indoor Free Flight and Scale, shall carry:
i) The national identification mark followed by the National FAI licence number or the FAI Unique ID number. The letters and numbers must be at least 25 mm high and appear at least once on each model (on the upper surface of a wing for Free Flight models).
Note: The list of the national identification marks (3 letters per country) is downloadable from “Documents” section of the CIAM website
http://www.fai.org/ciam-documents" onclick="window.open(this.href);return false;.
ii) A model identification code (letters and/or numbers). This code has to be different for each nominated model aircraft of the competitor. The model identification code is to appear on each main part of the model (wing(s), tail, front and rear fuselage if detachable) so that the individual parts of a competitor's different models may be separately identified. The letters and/or numbers must be at least 10 mm high and clearly visible. The identification code of the nominated models shall be recorded on the score card. For World or Continental Championships this must be recorded on the Model Aircraft Specification Certificate.
b) A model aircraft must not carry a national identification mark, an FAI licence number, an FAI sticker, or any other reference which relates to any person other than the competitor. At the processing of the model aircraft, the organiser must mark each FAI sticker (if required).
c) At the processing of the model aircraft for classes F2A, F2C, F2D and F3D, all piston motors which might be used during the contest shall be marked with an easily visible identification mark. For World or Continental Championships these details must be recorded on the Model Aircraft Specification Certificate at the time of checking the model. Motors which have been checked and recorded in this way may not be exchanged with other competitors.
Коротко
В соответсвии с правилами FAI участник имеет право использовать в соревнованиях три модели. На крыло должна быть нанесена маркировка высотой не менее 25 мм с названием страны, FAI ID или номером лицензии. Все сменные части моделей (фюзеляж, части крыла, стабилизатор и т.д.) должны быть промаркированы уникальной маркировкой для каждой модели, чтобы исключить замены частей в туре. Высота маркировки на менее 10 мм. Это может быть любой цифровой или буквенный код. Достаточно маркировать крыло и стабилизатор.