Video summary

V-Speeds Explained for Beginner Pilots (Vx, Vy, Va, Vfe & More)

Main summary

Key takeaways

Educational

Main ideas / lessons

  • V-speeds (Vx, Vy, Va, Vfe, etc.) are not random memorization. They are reference tools tied to specific aerodynamic/operational purposes.
  • Numbers vary by aircraft, so the Pilot’s Operating Handbook (POH) should be used for exact values. The video’s examples (a Cessna 172M) are for understanding the concepts.
  • Understanding V-speeds helps pilots manage:
    • Stall margins (how close you are to loss of lift)
    • Performance (climb capability, obstacle clearance)
    • Structural limits (maneuvering, flap limits, overspeed protection)
    • Operational boundaries on the airspeed indicator (white/green/yellow/red arcs)

Methodology / step-by-step concepts (as presented)

1) Stall speeds (where the aircraft stalls)

  • VSO

    • Meaning: Stall speed in the landing configuration
    • Configuration: Flaps down + gear extended
    • Example (C172M): ~54 mph
    • Memory aid: “O stands for out” → everything is out (gear/flaps down)

  • VS1

    • Meaning: Stall speed in the clean configuration
    • Configuration: No flaps
    • Example (C172M): ~61 mph
    • Concept: Without flaps, the wing is less efficient at generating lift, so stall speed is higher

  • Practical safety note

    • The stall horn triggers about 5–10 mph before the actual aerodynamic stall, regardless of configuration

2) Flap speed limits (structural limits)

  • VFE
    • Meaning: Maximum permissible speed with flaps extended
    • Example (C172M): ~100 mph
    • Instrument tie-in: The flap extension range is shown by the white arc on the airspeed indicator, with the upper end = VF
    • Critical lesson: VFE/VF is structural
      • Deploying flaps above this speed (even a small amount like 10°) can damage flaps
    • Where pilots reference it: Traffic pattern, descents, and go-arounds
    • Core takeaway: Flaps help, but only when the airplane is slow enough

3) Takeoff climb speeds (Vx vs Vy)

  • Vx = best angle of climb

    • Example (C172): ~68 mph
    • Purpose: Most altitude gained per unit distance over the ground
    • When to use: Obstacle clearance on takeoff (trees, power lines, rising terrain)
    • Concept description: A steeper climb that isn’t very fast forward, maximizing altitude gained “per foot traveled”
    • Mnemonic idea: Think of X as intersecting lines at a right angle (to represent “best angle”)

  • Vy = best rate of climb

    • Example (C172): ~88 mph
    • Purpose: Most altitude gained per unit time
    • When to use: Getting to cruise altitude fastest
    • “Usual climb” recommendation: Vy is what you’ll use most often in normal climbs
    • Advantages mentioned: better engine cooling, visibility, and overall climb efficiency
    • Mnemonic: “Vy is the best rate of climb”

4) Maneuvering speed (VA)

  • VA = maneuvering speed
    • Example (C172M, max gross weight): ~112 mph
    • Key nuance: VA depends on weight
      • Decreases as weight decreases
      • Increases as weight increases
    • Purpose: Maximum speed at which you can make full control deflections without causing damage
    • What happens below VA: full deflection tends to stall the wing before structural damage occurs
    • What happens above VA: aggressive inputs can impose excessive stress on the airframe
    • Training guidance: Do maneuvers at or below VA to reduce structural risk

5) Normal operating speed limits (VNO, turbulence)

  • VNO
    • Meaning: Top of the green arc (normal operating speed)
    • Example (C172): ~145 mph
    • Concept: Above normal operating speed is yellow arc, which isn’t inherently “dangerous,” but it implies limitations
    • In smooth air: operation in yellow may be acceptable (as implied)
    • In turbulence: stay below VNO to prevent structural damage
    • Memory aid: “Vno rough air” (i.e., avoid exceeding VNO in rough/turbulent conditions)

6) Overspeed limit (VNE)

  • VNE

    • Meaning: Never exceed speed (hard red line)
    • Example (C172M): ~182 mph
    • Risk framing: No buffer—no grace margin; never exceed intentionally

  • If approaching VNE (action described)

    • Pull power to idle
    • Slowly pitch up toward level altitude
    • Ensure you don’t pull excessive G’s during the pitch change

Brief multi-engine add-on speeds (mentioned, not deeply taught)

  • V1

    • Meaning: Takeoff decision speed
    • Rule: Below V1, takeoff can be safely aborted; above V1, takeoff should be continued even if an engine fails

  • VR

    • Meaning: Rotation speed (begin rotating during takeoff)
    • Emphasis: Often more important in multi-engine aircraft due to performance/controllability considerations
    • Contrast to single engine (e.g., 172): Single-engine airplanes may naturally lift at the right time, so VR is often omitted

  • VSE

    • Meaning: Best single-engine rate of climb (often called the blue line)
    • Use case: Target immediately after an engine failure in a twin to maximize chance of maintaining or gaining altitude on one engine

Conclusion

  • V-speeds are about understanding the “why” behind each number.
  • Learn aircraft-specific values from the POH, since many older aircraft may not list every speed explicitly, requiring extra lookup.
  • Once the concepts are understood, the numbers become easier and more meaningful.

Speakers / sources

  • Cam Carr (speaker / presenter)
  • Cessna 172M (used as the example aircraft)
  • Pilot’s Operating Handbook (POH) / “the P” (referenced as the source for exact values)

Original video