Merlin's Corner
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Stability on final: CAPES

If you want a way to make sure you're stable on final and keep yourself honest, go with CAPES:
Centerline: are we aligned?
Airspeed: on target, no trend.
Profile: is our flight path vector pointing at our aim point?
Energy: is it set within a normal range to maintain profile and speed?
Setup: gear down, flaps as needed, no changes inside 400 AGL.

Make a callout on final as soon as you turn the corner. If you're still fixing one of these inside 300 AGL, go around. Our friends at the NTSB keep reminding us to get stable or go around, else we substantially increase our odds of becoming their next project.

Thanks for reading. These articles are my perspectives and are not meant to represent any employers' opinions. Always operate your aircraft per applicable SOPs, Stan Mans, and AFMs. Please help me out by sharing your feedback on the site.
Copyright 2020-2026

  • Home
    • Stage Checks and Checkrides >
      • General Checkride Tips
      • Privileges and Limitations
      • Airworthiness
    • Memory aids >
      • Approach Requests: PAST
      • Box Setup G1000: BARF
      • Level Offs: LLAPT
      • Maneuver Check: CREACS
      • Stable on Final? CAPES
      • Wing-Low Crosswinds
      • Wings Level, Tread on Target
    • The 5 Fundamentals of Weather
    • We Need to Fix NOTAMs
    • Math Problems for Students
  • Aero
    • Demystifying the basic lift equation
    • Density for Dummies
    • Speeds and Weight
    • Mach and TAS
    • Vmca Factors
    • OEI: The Gravity Tax
    • Hot and High Slowdown Adjustments
  • IFR
    • Vertical speeds on non-standard gradients
    • Turning inbound from an Arc
    • Turning onto an Arc
    • Outbound Holding time Adjustments
    • 60:1 and Derivations
    • 172 Attitude Flying
    • How to Ace GA Chart Briefings
    • GA Circling Approaches
    • IFR Briefings in Jets
    • OEI Approaches
    • Knob Setting Tricks
    • Deviations and Shortcuts
    • G1000 FPL Catalog
  • Stick & Rudder
    • The Energy Box
    • Mastering Slow Flight
    • Improving Your Landings
    • Pattern Extensions
    • VMC Demo
    • OEI Flow in the Seminole
  • Jets
    • Landing the E175
    • E175 Flare Geometry
    • E175 Flare Height Adjustment
    • Using FPR to Catch Mountain Wave
    • Finesse the E175 GS Capture
    • Runway Changes in the E175
    • Taxi Shorthand
    • Box Setup in Canada
    • E175 Optimal Climb Speeds
  • Systems
    • Constant-Speed Props
    • C172 Engine Leaning
  • Airport Reports
    • KSLC LDA35
    • Sea-Tac Airport
    • SFO Airport
  • Blog
  • Contact