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This leads to unstable approaches, excessive pitch changes, and increased workload in the cockpit. Why It Happens: Nervousness and lack of trust in the aircrafts stability. Forgetting to apply rudder and aileron corrections simultaneously. Feeling overwhelmed during short final and flare.
The small aileron “tabs” were not doing a great job in crosswind ability. For the finalapproach, I calculated V REF of about 128 was fought with much shear, with airspeed variances of up to 20 to 30 knots, providing a wild ride. There was no inherent stability. Taking off in violent winds was a task.
The finalapproach speed for a soft field approach and landing should be the same as is used for a short field technique to minimuze float once you enter ground effect. If gusty conditions are present, increase finalapproach airspeed by one half the gust factor.
Brief that you will use the right rudder to align the aircraft straight with the runway and the left aileron to counteract drift. It also allows you to focus on flying during the last stages of the approach and landing. This allows you to configure appropriately and ensures a stabilizedapproach.
The easiest way to achieve this is by flying a stabilizedapproach. So, what is a stabilizedapproach? A stabilizedapproach requires the pilot to establish and maintain a constant angle glidepath towards an aiming point. Most approaches use a 3:1 glidepath. Keep the ailerons into the wind.
The primary flight controls on the DC-10 (ailerons, rudder, elevators, spoilers) were all operated by hydraulic pressure and the first officer was quick to realize that his controls were unresponsive to his inputs. Upon his return, he reported that both right-hand and left-hand rear stabilizers had sustained damage.
The ailerons feature a small flow-control trailing-edge flap to enhance roll control. The broad stabilator carries an electrically adjustable balance tab. Clearing the finalapproach path, we extended full flaps and stabilized at 70 knots. Electric flaps ride out on external tracks to a maximum of 30 degrees.
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