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Tagged with frequency helicopter
2 questions
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How do you communicate with atc and how can they communicate with you when you change frequency?
How do you let atc know that you are going to a different frequency and how will you be able to talk to them if they need to talk to you will they go to that frequency that you went to?
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What are the expected vibration frequencies in a co-axial rotor system with contra-rotating propellers?
I am trying to understand the frequency spectrum of a co-axial rotor system. Form now i have a RC helicopter with two sets of three gear systems arranged in parallel, The number of teeth are 7,23,27) ...
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