36 1 2 3 1. Strong Wind Set up closest base for  steeper glideslope on final 2. Medium Wind Set up closer base for  steeper glideslope on final 3. Light Wind Set up normal base for  normal final Figure 11-31. Plan the base leg according to wind conditions. position on the base leg through the 90° turn to the fi nal  approach is the final part of all accuracy landing maneuvers.  Steep approach procedures may be used during the fi nal  approach if needed. The 90° power-off approach usually begins from a rectangular  pattern below normal pattern altitude as long as this point is  above 500 feet AGL. The before-landing checklist should  be completed on the downwind leg. After a medium-banked turn onto the base leg is completed  and key position obtained, the throttle should be completely  reduced to idle and the airspeed set to approach speed.  [Figure 11-32]  At this position, the intended landing spot  appears to be on a 45° angle from the aircraft’s nose. The pilot can determine the strength and direction of the  wind from the amount of crab necessary to hold the desired  ground track on the base leg. This helps in planning the turn  onto the final approach. The base-to-final turn should be  planned and accomplished so that upon rolling out of the  turn the aircraft is aligned with the runway centerline. Slight  adjustments in pitch attitude may be necessary to control  the glide angle and airspeed. However, never try to stretch  the glide to reach the desired landing spot. After the fi nal  approach glide has been established, full attention is given  to making a good, safe landing rather than concentrating on  the selected landing spot. In any event, it is better to execute  a good landing 200 feet from the spot than to make a poor  landing precisely on the spot. The 180° power-off approach requires more planning and  judgment than the 90° power-off approach. In the execution  of 180° power-off approaches, the aircraft is flown on a  downwind heading parallel to the landing runway. The  altitude from which this type of approach should be started  in the downwind leg is at a normal pattern altitude. This  power-off approach should be the normal procedure except  for normal light wind landings, the throttle can be brought  back to idle between the downwind leg key position and the  turn onto the base leg depending on the height and distance  from the runway. When abreast of or opposite the desired  landing spot or a location closer to the turn onto base if the  WSC is further from the runway, the throttle should be closed  and the WSC aircraft set to the best glide speed. The point at  which the throttle is closed is the downwind key position. The 180° power-off approach is executed by gliding with  the power off from a given point on a downwind leg to a  preselected landing spot.  [Figure 11-33]  It is an extension  of the principles involved in the 90° power-off approach  just described. Its objective is to further develop judgment  in estimating distances and glide ratios, in that the aircraft  is flown without power from a higher altitude and through  a 90° turn to reach the base-leg position at a proper altitude  for executing the 90° approach.  180° Power-Off Approach 11-23