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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. 

## Wing Not Centered Overhead 

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: 

1. Keep steering into the wind, and 

2. Keep your groundspeed below airborne (liftoff) speed. 

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 

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. 

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 Cart Turns Over (Roll-Over) 

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 

