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Should a Quadrotor have all of the same props?

Posted by Matthew Christenson on September 15, 2012 at 11:21am

Hi,

I ordered the quadrotor kit at store.diydrones.com.  At the time I ordered, I asked what are the parts that break the most?  I was told props.  So I asked to order a few extra props.

 

I received 6 props with my kit.  I just now noticed that they are two different kinds!  I have 3 of one type and 3 of another.  Half of them are "Pusher" props, with model number 11x4.7 SFP slo-flier pushers and the other half are just 11x4.7 slo-fliers.

 

I knew that two rotors spin opposite, but I didn't realize they needed different props?  It it that two will use pushers and 2 will use the standard?  This makes sense but I just want to confirm!

 

Thanks!

 

Matt Christenson

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Replies

  • Mike Boland September 15, 2012 at 12:47pm

    A prop is a rotating wing, and you would not expect a wing to lift a plane if you flew it backwards?

    So you need equal numbers of oppositely rotating props to have any yaw control,  and props are designed to produce lift in only one direction.

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