Calculation should include the use of an airplane landing distance graph and table and should reflect the following concepts:

Landing speed is not independent of weight.
Landing speed is a percentage of stall speed, but stall speed is dependent on aircraft weight.
Stall speed will increase with a heavier airplane; therefore, landing speed, as a percentage of stall speed, will also change with weight.

Calculating landing distance should include using the table:

Use the landing distance chart in the POH/AFM.
Identify the landing type (e.g., short field) and associated conditions.
Identify the field pressure altitude.
Identify the temperature at time of landing and locate the column nearest to that temperature.
Move down in that respective column to the associated pressure altitude to find the ground roll and distance graph and table required to clear a 50-foot obstacle.
Apply variables to distance as necessary (e.g., grass runway, headwind, tailwind).
These numbers are associated with a perfectly performed landing; it is recommended to add some buffer room.

Calculating landing distance should include using a landing distance chart:

Identify the outside air temperature (OAT).
Identify the pressure altitude and draw a line from the OAT upwards until it intersects the respective pressure altitude line.
Move straight across to the next section and reference the nearest trend lines to draw a line until it intersects the aircraft weight (pounds), then move straight across to the wind component.
Follow the tailwind or headwind component trend lines until they hit the appropriate wind speed, then move straight across to obstacle height.
Reference the nearest trend lines and draw the line accordingly, depending on the height of the obstacle.
Move straight across to find the total distance.

PLT008

Process/Skill Questions: