Hi folks,I was thinking about how to defend propellers and the frame from damagesAnd I came to the idea to cover the frame with polyurethane foam.http://users.jyu.fi/~mweber/blog/ima...m_mushroom.jpgthis stuff is cost nothing and you can easy make any shape you want.For example - like thishttp://picasaweb.google.com/vePetrov...22297807395842What do you think about?By the way, the similar protacti…