Cessna C172S Nav III, Training Manual

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Performance, Weight & Balance
Cessna 172s V speeds.
Speeds listed below are in Knots Indicated Airspeed (KIAS).
Weight and Balance.
Formulas
• Weight × Arm = Moment
• Total Moment ÷ Total Weight = CG
• Max Ramp Weight – Zero Fuel Weight = Usable Fuel Weight
• Fuel Weight ÷ 6 = Fuel Gallons
• 100 LL (Blue) Fuel Weighs 6 lbs./gal.; Oil Weighs 7.5 lbs./gal.
• Unusable fuel and oil at full capacity are Included in Basic Empty Weight
Maximum Ramp Weight 2558lbs
Maximum Take off weight weight 2550lbs
Speed
KTS Description Airspeed indicator markings
Vso 40
Stall speed in landing configuration
Vs 48
Stall speed with zero flaps Bottom of White Line
Vr 55
Rotation speed (start rotation) Bottom of Green Line
Vx 62
Best angle of climb
Vy 74
Best rate of climb
V
G
68
Best glide speed
Vfe 110
Maximum flap 10 degrees speed
Vfe 85
Maximum flap 20-FULL degrees speed Top of White Line
Vno 129
Max Structural Cruising Speed Top of Green Line
Vne 163
Never exceed speed Red Line
Va 105
Maneuvering speed