12.62.8. Using a PA/PR (power available/power required) graph, show the derivation ofmaximum rate of climb speed.
++ diagram++
For maximum rate of climb spped – this is the speed at which there is the greatest excess of power available over power required
12.62.6. Define the meaning of Vx (max angle) and Vy (max rate).
12.62.4(c) . cruise climb
12.62.4(b) . maximum rate of climb; Sub Topic Syllabus Item
Maximum angle climb
– best gradient
Maximum rate climb
– best vertical speed
Normal climb
– speed is usually higher than the speed for maximum rate of climb and is a compromise between speed and rate of climb
Vx max angle
Vy max rate
12.62.4(a) . maximum angle of climb;
Maximum angle climb
– best gradient
Maximum rate climb
– best vertical speed
Normal climb
– speed is usually higher than the speed for maximum rate of climb and is a compromise between speed and rate of climb
Vx max angle
Vy max rate
12.62.4. Distinguish between:
12.62.2. Using a diagram, show and name the forces acting in a steady climb.
++ Diagram++
The aerodynamic lift force acts perpendicular to the direction of flight
The drag force is parallel with it
Weight force acts vertically downwards but in the climb it now has a component which acts in the same direction as drag
12.60. Straight and Level Flight
12.60.10. Explain the basic operational considerations which apply to flying an aeroplanefor range, or endurance.
Range
– if headwind not a factor tend toward flying at higher altitudes – “cruise climb”
– ensure the mixture is properly leaned
– fly at an altitude that reduces the headwind component to a minimum or an altritude that takes advantage of a higher tailwind component
Endurance:
– fly at about the recommended gliding speed
– in turbulent conditins fly at a slightly higher speed to prevent large increases in power to overcome effects of gusts
– ensure the mixture is correctly leaned
– fly at the lowest practical attitude
12.60.8(c) . maximum endurance speed.
Speed for maximum endurance is the TAS which coincides with the bottom of the power curve – ie the speed at which the minimum power and lowest fuel consumption is required to maintian level flight