2. Performance

87) The danger associated with low speed and/or high speed buffet

76) Given a jet aircraft. Which order of increasing speeds in the performance diagram is correct?

77) If the climb speed schedule is changed from 280/.74 to 290/.74 the new crossover altitude is

78) Reduced take-off thrust should normally not be used when:

79) Which data can be extracted from the Buffet Onset Boundary Chart?

80) With zero wind, the angle of attack for maximum range for an aeroplane with turbojet engines is:

81) The speed V2 is defined for jet aeroplane as

82) An increase in atmospheric pressure has, among other things, the following consequences on take-off performance:

83) The induced drag of an aeroplane at constant gross weight and altitude is highest at

84) On a twin engined piston aircraft with variable pitch propellers, for a given mass and altitude, the minimum drag speed is 125 kt and the holding speed (minimum fuel burn per hour) is 95 kt. The best rate of climb speed will be obtained for a speed:

98) Which one of the following is not affected by a tail wind?

86) In a steady descending flight (descent angle GAMMA) equilibrium of forces acting on the aeroplane is given by: (T = Thrust, D = Drag, W = Weight)

88) The pilot of a light twin engine aircraft has calculated a 4 000 m service ceiling, based on the forecast general conditions for the flight and a take-off mass of 3 250 kg. If the take-off mass is 3 000 kg, the service ceiling will be:

89) Consider the graphic representation of the power required versus true air speed (TAS), for a jet aeroplane with a given mass. When drawing the tangent out of the origin, the point of contact determines the speed of:

90) Which of the following statements is correct ?

91) What effect has a downhill slope on the take-off speeds? The slope

92) The load factor in a turn in level flight with constant TAS depends on

93) Which of the following factors determines the maximum flight altitude in the "Buffet Onset Boundary" graph?

95) What is the most important aspect of the 'backside of the power curve'?

121) How does the lift coefficient for maximum range vary with altitude? (No compressibility effects.)

85) How does TAS vary in a constant Mach climb in the troposphere?

155) The landing reference speed VREF has, in accordance with international requirements, the following margins above stall speed in landing configuration: