What Are V-Speeds? The Pilot’s Guide to Every Airspeed That Matters

V-speeds are standardized airspeeds that define how an airplane should be flown in a specific situation — the speed for best climb, the speed to never exceed, the maximum speed for extending flaps, and many more. The “V” comes from the French vitesse, meaning velocity, and each V-speed is published in your aircraft’s flight manual to keep you safe and efficient. Every one of them is a number the manufacturer flight-tested and the FAA approved, so when you fly the right V-speed at the right time, you’re flying the airplane the way it was designed to be flown. They’re not trivia — they’re the language your airplane speaks.

Let’s break down what each V-speed means, how to read them right off your airspeed indicator, and which ones you’ll live by from your very first lesson.

arc" src="https://www.angleofattack.com/wp-content/uploads/2026/07/what-are-v-speeds-featured.jpg" style="margin-bottom: 0;">

What are V-speeds and why do they matter?

V-speeds are standardized airspeeds, each one tied to a specific operation or limitation of the airplane. Every V-speed is a flight-tested number published in your aircraft’s Pilot’s Operating Handbook (POH) or Airplane Flight Manual (AFM). They cover everything from the speed for your best climb to the speed you must never exceed in a dive. Per the FAA Pilot’s Handbook of Aeronautical Knowledge (PHAK, FAA-H-8083-25C, Chapter 8), these speeds are how the manufacturer hands you the airplane’s performance and limits in plain numbers.

Here’s why they matter so much. An airplane doesn’t have one “right” speed — it has a different right speed for every situation. The speed that clears an obstacle on takeoff is not the speed you’d hold to cruise efficiently, and neither is the speed you’d fly through turbulence. V-speeds package all of that flight-test data into a handful of numbers you can actually fly.

Some V-speeds are limitations you can read straight off the airspeed indicator (like never-exceed speed). Others are performance speeds you’ll set up by pitch and power (like best-rate-of-climb). The federal definitions of the common V-speed symbols live in 14 CFR § 1.2, so when you see “Vfe” in your POH, it means the same thing in every airplane.

What do the color arcs on the airspeed indicator mean?

Before you memorize a single number, learn to read the colors. The colored arcs on your airspeed indicator are V-speeds drawn right onto the instrument: the white arc is the flap operating range, the green arc is the normal operating range, the yellow arc is the caution range, and the red radial line is the never-exceed speed (Vne). This is straight out of the PHAK (FAA-H-8083-25C) and it’s one of the highest-value things you’ll learn early.

Read it from slow to fast. The white arc runs from Vso (stall speed in the landing configuration, full flaps) at the bottom up to Vfe (maximum flap extended speed) at the top — that’s the range where flaps are safe to use. The green arc runs from Vs1 (stall speed in a clean configuration) up to Vno (maximum structural cruising speed) — that’s your normal, everyday operating range. The yellow arc runs from Vno up to Vne — you only fly there in smooth air, with caution. The red line at the very top is Vne, the speed you never exceed under any circumstances.

Notice how the arcs overlap exactly where it counts: the bottom of the white arc and the bottom of the green arc are different stall speeds for different configurations, which tells you flaps lower your stall speed. Read those two endpoints and you already understand a huge chunk of how the airplane behaves.

What’s the difference between Vx and Vy?

This is the V-speed question students get tripped up on most, so let’s nail it. Vx is the best angle of climb — it gives you the most altitude gained over the shortest horizontal distance, which is what you want to clear an obstacle off the end of the runway. Vy is the best rate of climb — it gives you the most altitude gained in the least amount of time, which is what you want for an efficient climb to cruise. Vx is the slower of the two at sea level; Vy is faster.

Think of it in terms of what you’re optimizing. With Vx, you’re trading time for altitude over the ground — you’ll climb at a steeper angle but it takes longer, and you fly it when there are trees, towers, or terrain at the departure end. With Vy, you’re optimizing altitude per minute — a shallower angle but you’re getting up to a safe, comfortable altitude fastest. Most normal takeoffs transition to Vy once you’re clear of obstacles.

Here’s the detail examiners love: as you climb higher, Vx increases and Vy decreases, and they eventually meet at the airplane’s absolute ceiling. For a Cessna 172, Vx is roughly 60 knots and Vy is roughly 74 knots near sea level — but always fly the number from your POH for your model and weight, because these change with the airframe.

What do Vso, Vs1, and the stall speeds mean?

Stall speeds tell you the slowest the airplane can fly before the wing quits flying, and there are two you’ll quote constantly. Vso is the stall speed (or minimum steady flight speed) in the landing configuration — full flaps, gear down — and it sits at the bottom of the white arc. Vs1 is the stall speed in a specified clean configuration (flaps and gear up) and it sits at the bottom of the green arc. Per 14 CFR § 1.2, Vs is “the stalling speed or the minimum steady flight speed at which the airplane is controllable.”

Why two numbers? Because configuration changes the wing. Lowering flaps lets the wing make the same lift at a slower speed, so Vso (full flaps) is always lower than Vs1 (clean) — that’s exactly why the white arc starts lower on the dial than the green arc. That gap is the safety margin flaps buy you on landing, letting you cross the threshold and touch down slower.

One critical caveat: published stall speeds are for a specific weight (usually max gross) in a 1-G, wings-level condition. The instant you bank into a turn, load factor goes up and your actual stall speed climbs with it. That’s why a stall can sneak up on you in a steep, low turn from base to final at a speed that felt perfectly safe straight and level. Respect the published number, then give yourself margin on top of it.

What are Vno, Vne, and Va — the structural limits?

These three are about keeping the airplane in one piece. Vno is the maximum structural cruising speed — the top of the green arc — and you stay below it except in smooth air. Vne is the never-exceed speed, marked by the red line, and you must never fly faster than it under any condition. Va is the design maneuvering speed: the fastest speed at which abrupt, full control input won’t overstress the airframe. All three symbols are defined in 14 CFR § 1.2.

Vno and Vne work together as a pair. Below Vno (green arc), the airplane is built to handle the rough air and gust loads you might reasonably encounter. Between Vno and Vne (the yellow arc), you should only be there in smooth, stable air — a sharp gust at those speeds could overstress the structure. At or above Vne (red line), you risk structural failure or flutter, full stop. There’s no “just for a second” with the red line.

Va is the one that protects you in turbulence, and it has a twist most students miss: Va decreases as the airplane gets lighter. Below Va, the wing will stall (and unload) before the structure breaks if you yank the controls or hit a hard gust. That’s why turbulence-penetration speed is at or below Va — you want the wing to give up before the airframe does. Check your POH for Va at your current weight; on many trainers it’s published only at gross, so fly slower when you’re light.

Which V-speeds do I actually need to memorize?

You don’t need to recite all twenty-plus V-speeds from memory — but a core handful should be automatic. For your trainer, commit Vx (best angle of climb), Vy (best rate of climb), Vfe (max flap extended), Vso (landing-config stall), Vno, Vne, Va, and Vg (best glide) to memory. These are the speeds you’ll reach for on every flight, plus the one (Vg) that matters most in an engine failure.

Here’s a simple way to organize them in your head. Group them by phase of flight: takeoff and climb (Vx, Vy), configuration limits (Vfe, and Vle if you fly retractable gear), normal and caution ranges (Vno, Vne), slow flight and landing (Vso, Vs1), and emergencies (Vg for best glide). When you can rattle off the number for each phase, you actually understand the airplane instead of just reciting a list.

A few you’ll meet later as you move up: Vle (max landing-gear-extended speed) and Vlo (max landing-gear-operating speed) show up in complex airplanes; V1, Vr, and V2 are takeoff decision and rotation speeds you’ll see in multi-engine and transport aircraft. For your private certificate in a fixed-gear single, focus on the core list above. If you want every one of these laid out the way they’ll show up on your knowledge test, that’s exactly what we drill in the Angle of Attack Private Pilot Ground School — built to make you day-one ready, not just checkride ready.

A windy day when Va saved my airplane

I learned to respect maneuvering speed the hard way — not by breaking anything, but by getting close enough to feel it. I was flying my 172 out of a valley strip in Alaska on a gusty afternoon, the kind of day where the wind comes pouring over the ridges and the air downstream of the terrain turns into a washing machine. I was cruising along happily in the green arc, well below Vno, thinking I had plenty of margin.

Then I hit the rotor coming off a ridgeline. One sharp jolt that snapped my head into the headliner and threw the airspeed needle around. It got my full attention. I was still under Vno, so the airplane was fine structurally — but it reminded me that “below the yellow arc” isn’t the same as “safe in real turbulence.” The honest protection is Va, and Va is slower than where I was flying.

So I did what I now teach every student to do before they ever launch into bumpy air: I pulled the power back and slowed the airplane to maneuvering speed for my weight. The ride didn’t get smooth — turbulence is turbulence — but the gusts stopped feeling violent. At Va, the wing will stall and unload before a hard gust can overstress the structure. The airplane was telling me it could take the punches as long as I gave it the slower speed it needed.

That’s the lesson I drill in: the green arc keeps you legal for cruise, but turbulence is a Va conversation. Know your maneuvering speed cold, remember it drops as you burn off fuel and get lighter, and slow down before the air gets rough — not after the first jolt rings your bell.

How are V-speeds tested on the checkride?

On the practical test, V-speeds come up in both the oral and the flight. The Private Pilot Airman Certification Standards (ACS) expect you to know your airplane’s V-speeds, explain the airspeed indicator markings, and actually fly the correct speeds — Vx, Vy, approach speed, and best glide — within the ACS tolerances. Get caught not knowing Vne or guessing at your flap speed, and your examiner will dig in.

In the oral, expect to point at the airspeed indicator and explain every arc and line: what the white arc means, where Vso and Vfe fall, what the green arc covers, why the yellow arc is caution-only, and what the red line is. You’ll likely be asked the difference between Vx and Vy and when you’d use each — the “when” matters as much as the number. Be ready to explain that Va isn’t on the dial and why it changes with weight.

In the air, the examiner watches whether you actually fly the numbers. A short-field takeoff over an obstacle should be flown at Vx; a normal climb at Vy; an emergency descent or engine-out at best glide. The numbers aren’t gospel to recite — they’re speeds to fly. If you want every V-speed laid out the way it’ll show up on your knowledge test and checkride, start free with the Total Student Pilot course — it’s the on-ramp we built for brand-new students.

PLT Study Guide

The FAA tags knowledge-test questions with PLT (learning statement) codes. Here are the codes that actually map to V-speeds and airspeed indicator markings, with the FAA’s own wording translated into plain study points.

Plain-English study points:

• PLT466 (regulations — V speeds): Know that the V-speed symbols are defined in 14 CFR § 1.2 so they mean the same thing in every airplane. Be able to match the symbol (Vfe, Vno, Vne, Vso, Vs1) to its definition.
• PLT506 (V speeds — full list): Memorize the core roster and what each governs — Vx/Vy (climb), Vfe (flaps), Vle/Vlo (gear), Va (maneuvering), Vno/Vne (structural). Multi-engine and transport speeds (V1, Vr, V2) appear here too, but your PP focus is the single-engine set.
• PLT035 (Vne / Vno): Lock in that Vno is the top of the green arc (max structural cruise, smooth-air-only above it) and Vne is the red line (never exceed). The yellow arc lives between them.
• PLT132 (instrument markings / airspeed): Be able to read the airspeed indicator cold — white arc (Vso to Vfe, flap range), green arc (Vs1 to Vno, normal range), yellow arc (Vno to Vne, caution), red line (Vne).

Frequently Asked Questions

FROM CHRIS

If there’s one habit that separates a confident pilot from a nervous one, it’s speaking the airplane’s language fluently — and V-speeds are that language. Learn to read the arcs cold, memorize your trainer’s core numbers, and remember that the right speed depends entirely on what you’re trying to do in that moment. Do that, and the airplane stops being a mystery and starts being a tool you actually understand.

Throttle On!

Chris Palmer

Founder & Chief CFI, Angle of Attack — Two-Time Master Aviation Educator and Gold Seal CFI