Figure 12-5. The wing should be centered and forward to the rise attachment points prior to takeoff. Note: Ask the advice of an instructor before using  these techniques on an elliptical-shaped wing. The  characteristics between the two types of PPC wings  are significant in correcting the “Locked-Out” scenario. the right steering bar. The additional drag created on  the right side will begin to pull the wing up to a more  centered position (from being down on the left). To compensate for the inertia of the wing’s movement  as it is traveling upward, reduce the initial steering bar  pressure, just before (not when) the wing is centered  overhead. Then slowly add slight opposite steering  bar pressure to compensate for possible over-correc- tion (inertia) of the wing from center. No takeoff should ever be attempted until the wing  is centered above the cart and forward to the riser at- tachment points. [Figure 12-5] Hence, if the wing is not centered when it comes  ahead to the riser attachment of the cart: Remember: you do NOT need to manually move the  wing center. The design of the wing and its attachment  points create the tendency for the wing to be centered  and overhead. You need only to steer the wing into the  wind, allow the time needed to self correct, and pro- vide the proper groundspeed to achieve proper wing  position prior to takeoff. The most noteworthy aspect of the takeoff preflight  roll is to verify that the wing is positioned correctly.  Due to the design, the wing will normally want to  be up and centered above the cart. It also wants to  weathervane into the wind. If you don’t rush the take - off roll, and give the wing the time and speed it needs  to adjust and settle overhead, the takeoff will be fine.  The wing wants to be centered over the cart and point - ing into the wind. You must steer into the wind during  the entire takeoff roll. You can adjust the wing’s position during your take- off preflight roll once the wing is up and past the 45°  position. When the wing is down on one side, apply  steering input to the opposite side. Hence, if the wing  is hanging down on the left side of the cart, push on  During a PPC taxi, you have two entities to steer: the  wing and the cart. Until united in an airborne pendu - lum, the independent wing can follow one path, while  the “grounded” cart may insist on another. This can  result in a pull-over. [Figure 12-6] Normally this situ - ation occurs when pilots are not headed into the wind  during takeoff, or try a crosswind taxi beyond the PPC  limitations or their current skill level. The strongest inclination of a taxiing ram-air wing  is to weathervane. The wing wants to point into the  wind. However, if the pilot is steering the cart in a  1. Keep steering into the wind, and 2. Keep your groundspeed below airborne (liftoff)  speed. The Cart Turns Over (Roll-Over) Wing Not Centered Overhead 12-4