Figure 9-4. Rectangular course.  gresses, the bank angle is reduced gradually because  the tailwind component is diminishing, resulting in  a decreasing groundspeed. During and after the turn  onto this leg (the equivalent of the base leg in a traffic  pattern), the wind will tend to drift the powered para- chute away from the field boundary. To compensate  for the drift, the amount of turn will be more than  90°. bank necessary at the turning points. Also, the pilot  should be able to see the edges of the selected field  while seated in a normal position and looking out the  side of the powered parachute during either a left- hand or right-hand course. The distance of the ground  track from the edges of the field should be the same  regardless of whether the course is flown to the left or  right. All turns should be started when the powered  parachute is abeam the corner of the field boundaries  headed downwind where ground reference maneuvers  are typically started. These should be the determining  factors in establishing the distance from the boundar- ies for performing the maneuver. Although the rectangular course may be entered from  any direction, this discussion assumes entry on a  downwind. The rollout from this turn must be such that as the  wing becomes level, the powered parachute is turned  slightly toward the field and into the wind to correct  for drift. The powered parachute should again be  the same distance from the field boundary and at the  same altitude, as on other legs. The base leg should be  continued until the upwind leg boundary is being ap- proached. Once more the pilot should anticipate drift  and turning radius. Since drift correction was held on  the base leg, it is necessary to turn less than 90° to  align the powered parachute parallel to the upwind leg  boundary. This turn should be started with a medium  bank angle with a gradual reduction to a shallow bank  On the downwind leg, the wind is a tailwind and re- sults in an increased groundspeed. Consequently, the  turn onto the next leg is entered with a fairly fast rate  of turn and a higher (medium) bank. As the turn pro- 9-5