There are a several types of helicopter . On a fixed pitch the swash plate only tilts the rotor for moving forward . On a collective pitch the the swash plate moves up and down which changes the actual pitch of the blades create more or less lift . So the blade can spin the same speed but create more or less lift by changing the pitch of the blades . bj 6 fDrRT 7 AgYou can buy an RC helicopter and see how it works for yourself . <| sep |> Pretty much all the popular ones . Space pirate , HordeZ and Audio Shield are my goto games when launching for replay value . Of course Nvidias fun housecarnival game wrecks my system . I ' ve played all the free demos with Bullet Sorrow being one I ' m waiting for a full release . And am now trying Doom 3 but my VR legs are quite wobbly so I can only last a very short time .