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Model Forum / Radio Controlled / Air Models / April 2007How do you control a pair of ducted fans (or dual props) to steer, etc?
A pair of ducted fans can steer. Is there a single component that allows you to control the balance for turns and their speed? Do you you use 2 channels of your transmitter/receiver? > A pair of ducted fans can steer. > > Is there a single component that allows you to control the balance for > turns and their speed? > > Do you you use 2 channels of your transmitter/receiver? It's called a mixer. You can get them as separate circuits that go between your receiver and speed control, or you can get a transmitter that has mixing (make sure it has the kind you want). You need two channels -- throttle and rudder, probably.  SignatureTim Wescott Wescott Design Services http://www.wescottdesign.com Posting from Google? See http://cfaj.freeshell.org/google/ Do you need to implement control loops in software? "Applied Control Theory for Embedded Systems" gives you just what it says. See details at http://www.wescottdesign.com/actfes/actfes.html > > A pair of ducted fans can steer. > [quoted text clipped - 19 lines] > "Applied Control Theory for Embedded Systems" gives you just what it says. > See details athttp://www.wescottdesign.com/actfes/actfes.html No rudder proposed. Steering entirely by throttle. This is a very slow utility barge. Does this cahnge anything? >>> A pair of ducted fans can steer. >>> Is there a single component that allows you to control the balance for [quoted text clipped - 13 lines] > > Does this cahnge anything? No. You want to control two independent things -- speed and differential speed, or speed 1 and speed 2. Either way you need two channels. If you want the side-side movement of a stick on the transmitter to translate into differential speed, you'll want to use the rudder channel (assuming you have ailerons). SignatureTim Wescott Wescott Design Services http://www.wescottdesign.com Posting from Google? See http://cfaj.freeshell.org/google/ Do you need to implement control loops in software? "Applied Control Theory for Embedded Systems" gives you just what it says. See details at http://www.wescottdesign.com/actfes/actfes.html |
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