Assuming all other factors remain unchanged, how will a Headwind Component HWC affect the Speed for Maximum Range and the Speed for Maximum Angle of Climb? The HWC:
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A
leaves the Speed for Maximum Range unchanged and increases the Speed for Maximum Angle of Climb.
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B
increases the Speed for Maximum Range and leaves the Speed for Maximum Angle of Climb unchanged.
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C
reduces the Speed for Maximum Range and increases the Speed for Maximum Angle of Climb.
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D
leaves the Speed for Maximum Range and the Speed for Maximum Angle of Climb unchanged.
Refer to figure.
Wind effect on Cruise
Wind does not affect endurance but is one of major factors affecting the aircraft range. To understand how the best range speed varies with wind, groundspeed should be plotted on the bottom of the Drag graph and not TAS.
Similar to no wind conditions, at the tangent of curve you can find the speed for Best Range Speed but taking into account the wind. A headwind makes the tangent hit the curve at a higher TAS and for a tailwind at a slower TAS.
Rate of Climb itself is air mass related, function of TAS and not affected by the wind.
Still Air Gradient of Climb = (Rate of Climb (fpm) ÷ TAS (kt)) x (6000 ÷ 6080)
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