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Performance Charts – Stall Speed Performance Charts

in Aircraft Performance

Stall speed performance charts are designed to give an understanding of the speed at which the aircraft will stall in a given configuration. This type of chart will typically take into account the angle of bank, the position of the gear and flaps, and the throttle position. Use Figure 10-33 and the accompanying conditions to find the speed at which the airplane will stall.


Figure 10-33. Stall speed table.

Figure 10-33. Stall speed table.

Sample Problem 13

Power……………………………………………………………… OFF

Flaps…………………………………………………………….. Down

Gear……………………………………………………………… Down

Angle of Bank……………………………………………………. 45°

First, locate the correct flap and gear configuration. The bottom half of the chart should be used since the gear and flaps are down. Next, choose the row corresponding to a power-off situation. Now, find the correct angle of bank column, which is 45°. The stall speed is 78 mph, and the stall speed in knots would be 68 knots.

Performance charts provide valuable information to the pilot. Take advantage of these charts. A pilot can predict the performance of the aircraft under most flying conditions, and this enables a better plan for every flight. The Code of Federal Regulations (CFR) requires that a pilot be familiar with all information available prior to any flight. Pilots should use the information to their advantage as it can only contribute to safety in flight.

 

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