Fixed Gear Drag

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Note: Gear drag can only be calculated in the subsonic speed regime.

 

The fixed landing gear drag coefficient for an aircraft with i landing gears may be computed from:

 

image\AERO0817_shg.gif

 

Values of the drag coefficient of the fixed gear based on its own reference area can be obtained from the following graphics:

 

See: Graphic: Fixed Undercarriage Drag, Part I

 

See: Graphic: Fixed Undercarriage Drag, Part II

 

See: Graphic: Main Gear Drag: Fixed Gears Attached to Nacelles Pt I

 

See: Graphic: Main Gear Drag: Fixed Gears Attached to Nacelles Pt II

 

See: Graphic: Gear Fairing Types

 

See: Graphic: Nose Gear Drag Coefficients

 

See: Graphic: Tail Gear Drag Coefficients

 

See: Graphic: Landing Gear Induced Drag Factor

 

See: Graphic: Strut Length and Frontal Tire Surface Area

 

The fixed gear reference area is calculated from

 

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