Flight Instructors Training Procedures _revised AIC_x

ii. WITH THE AID OF A GRAPH EXPLAIN:
a. Power available curve (Pa) – Two engines.
b. Power required curve (Pr) – Two engines = Total drag.
c. Effect of propeller efficiency at low speed and high RPM.
d. Effects of altitude, supercharging/turbocharging and single engine ceiling.
e. Power available single engine (Pase).
f. Power required single engine (Prse).
g. Loss of performance.
h. How an aeroplane can be flown straight and level at two speeds with the same power
setting, and show how these speeds converge as power is decrease. Explain the
importance of this for single engine circuits as well as the overshoot.
iii. PERFORMANCE LOSS WITH ONE ENGINE INOPERATIVE
a. Explaining the possibility of power/thrust degradation due to engine wear, and how
propeller efficiency decreases at low speed, high RPM and high angle of attack, leaving
a percentage of power/thrust on both engines for climbing.
b. Compute Rate of Climb:
Rate of Climb (FPM) =
33000 x Pa - Pr
Weight
c. Show that with the one engine inoperative:
Rate of climb (FPM) = 33000 x Pase - Prse
Weight
Percentage performance loss:
d. Describe the effects of :
1) Wind milling propeller.
2) Flaps.
3) Undercarriage.
4) Cowl flaps.
iv. OPERATIONS
Rate of climb (single engine) x 100
Rate of climb (all engines)
a. DISCUSS AND EXPLAIN:
1) Weight, altitude and temperature (WAT) limitations.
2) Balance field length (BFL) and climb profile requirements.
3) Important speed definitions:
V1 – Critical engine failure recognition speed.
Vr – Rotation/take-off speed at which rotation is initiated to attain the V2
climb speed at or before a height of 35 ft above the runway has been
reached.
V2 – The actual climb speed at 35 ft above the runway surface as
demonstrated in flight with one engine inoperative.
Vref – The 1.3 x Vso speed.
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