Lesson31 Chandelles

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Information about Lesson31 Chandelles
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Published on January 13, 2008

Author: Savin

Source: authorstream.com

Chandelles:  Chandelles Objective:  Objective Exhibit knowledge of the elements related to the performance factors associated with chandelles Obtain the maximum performance of the airplane: Objective:  Objective the airplane should gain the most altitude possible for the degree of bank and power setting without stalling Atmospheric variables affect the altitude gained so altitude is not a criterion Altitude:  Altitude FAA requires the maneuver be performed no lower than 1,500 ft AGL Pick an altitude that is easy to identify on your altimeter Configuration:  Configuration Perform clearing turns check for traffic above and behind you Flaps and gear should be up Power should be adjusted to the manufacturers recommended speed , not to exceed VA Configuration:  Configuration Remember that VA changes with weight Configuration:  Configuration Select a reference line parallel to the wind As you cross the reference line enter the chandelle Configuration:  Configuration At the 90o point you will be nose-high and banked. It will be fairly easy to look down to the reference line Turning into the wind at the start will make it easy to stay near your starting point Bank:  Bank Establish but do not exceed 30o angle of bank Enter using a smooth coordinated level turn Apply Power and Pitch:  Apply Power and Pitch After establishing a level 30o banked turn start a climbing turn by applying back elevator pressure to attain the highest pitch attitude at the 90o point Apply Power and Pitch:  Apply Power and Pitch As the climb is initiated with a fixed pitch propeller aircraft apply full power With a constant speed propeller leave at cruise power or set RPM for climb or takeoff RPM and increase the MP to climb or takeoff setting Apply Power and Pitch:  Apply Power and Pitch Angle of bank should remain constant to the 90o point As the airspeed decreases, the rate of turn will increase, which can cause an overbanking tendency Apply Power and Pitch:  Apply Power and Pitch Some pilots use the airspeed to help determine the pitch attitude Apply Power and Pitch:  Apply Power and Pitch At the 90o point the airspeed should be approximately midway between entry and the power on stall speed. Bonanza should be 120 and 60 or 90 knots Apply Power and Pitch:  Apply Power and Pitch Power on stall speed varies with weight If you have a small skinny instructor, watch out when Bill gets in Begin Rollout at 90o Point:  Begin Rollout at 90o Point When parallel to your reference line begin rolling out of your bank at a constant rate while maintaining your pitch attitude Your rollout should be approximately 10o for each 30o of heading change Begin Rollout at 90o Point:  Begin Rollout at 90o Point During rollout, vertical lift increases which tends to increase airspeed given a constant pitch attitude Begin Rollout at 90o Point:  Begin Rollout at 90o Point Maintain your pitch attitude using small back elevator changes Use out side references and the attitude indicator to maintain your pitch attitude Begin Rollout at 90o Point:  Begin Rollout at 90o Point Since this is a high power setting maneuver you must account for torque After you pitch up, you decrease speed requiring a change in right rudder pressure Begin Rollout at 90o Point:  Begin Rollout at 90o Point Depending on the direction of turn aileron drag from the down aileron may act in concert with torque or against it To roll out of a left chandelle the left wing must be raised. Begin Rollout at 90o Point:  Begin Rollout at 90o Point The left aileron is lowered and created more drag making the plane yaw to the left in concert with the left torque tendency requiring more right rudder Begin Rollout at 90o Point:  Begin Rollout at 90o Point To roll out of a right chandelle the right wing must be raised. The right aileron is lowered and creates more drag and tends to make the plane yaw to the right. Less right rudder correction is needed Begin Rollout at 90o Point:  Begin Rollout at 90o Point When the wings are level, aileron drag is neutralized and torque is acting alone At the 180o point airspeed should be +5 of Power-on stall speed. Stall warning indicator should be on Return to Straight & Level:  Return to Straight & Level After the wings are level continue to correct for torque Gradually lower the nose to level flight while maintaining altitude Return to Straight & Level:  Return to Straight & Level Maintain trim with right rudder pressure As airspeed increase adjust pitch, power and trim for cruise flight Common Errors:  Common Errors Improper pitch, bank, and power coordination during entry or completion Pitch up too fast will cause a stall Pitch too slow or allow the pitch to decrease will cause you to reach 180o point at too high an airspeed Common Errors:  Common Errors Adjust power prior to the maneuver to establish cruise flight and increase after bank is established and as pitch is being increased No other power changes are made Common Errors:  Common Errors Uncoordinated use of flight controls Maintain coordinated flight Compensate for torque and aileron drag Check the ball in the inclinometer Common Errors:  Common Errors Improper planning and timing of pitch and bank attitude changes During the first 90o of turn the bank is constant At the 90o point you should have reached the maximum pitch Common Errors:  Common Errors During the second 90o, pitch attitude remains constant and the bank is slowly reduced At the 180o point, the pitch attitude is constant and the roll out to wings level is completed Common Errors:  Common Errors Plan and time the pitch and bank changes while dividing you attention Factors related to failure to achieve maximum performance Improper pitch Improper bank Slide32:  Lack of coordination, orientation or planning Stalling Do not stall Speed at 180o point should be +5 or stall speed Common Errors:  Common Errors Excessive deviation from desired heading during completion

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