Cirrus DESIGN SR20 Information Manual page 14

Section 1
General
• Station is a location along the airplane fuselage measured
in inches from the reference datum and expressed as a
number. For example: A point 123 inches aft of the reference
datum is Fuselage Station 123.0 (FS 123).
• Reference Datum is an imaginary vertical plane from which
all horizontal distances are measured for balance purposes.
• Tare is the weight of all items used to hold or position the
airplane on the scales for weighing. Tare includes blocks,
shims, and chocks. Tare weight must be subtracted from the
associated scale reading.
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Cirrus Design
P/N 13999-002 Info Manual
September 2011
SR20