Practical climb and descent vertical speeds for light aircraft and jets, with guidance on airspeed, autopilot modes and three-degree descent paths.
For Aviation & Real-World Flying, there is no universal vertical speed: hold the aircraft’s target airspeed and let the rate vary. Typical starting points are 500–1,000 ft/min for light-aircraft climbs, about 500 ft/min for their descents, 1,000–3,000 ft/min for jet climbs, and 1,000–2,500 ft/min for jet descents.
What is a normal climb or descent rate?
A normal vertical speed depends on aircraft type, weight, altitude, configuration and phase of flight. Treat these ranges as practical references, not limitations or substitutes for the aircraft flight manual.
| Aircraft and phase | Typical vertical speed | How to use it |
|---|---|---|
| Light piston climb | 500–1,000 ft/min | Fly the published climb speed; expect the rate to decrease with altitude. |
| Light piston descent | 300–700 ft/min | About 500 ft/min suits many traffic patterns and instrument approaches. |
| Turboprop climb or descent | 1,000–2,000 ft/min | Performance varies greatly with type, loading and altitude. |
| Transport-jet climb | 1,000–3,000 ft/min | The initial rate can exceed this when light; near cruise altitude it may fall below 1,000 ft/min. |
| Transport-jet en-route descent | 1,000–2,500 ft/min | Use the rate required by the planned path and ground speed rather than forcing one fixed figure. |
During final approach, vertical speed is normally lower and follows the glide path. For example, an aircraft crossing the ground at 120 knots needs roughly 600–650 ft/min to remain on a three-degree descent. Our phase-by-phase airliner vertical-speed guidance covers the wider variations found in jet operations.
Should I control airspeed or vertical speed?
Airspeed normally takes priority, particularly in a climb. Trying to hold an ambitious rate of climb can bleed away speed and lead to a stall, even though the vertical-speed indicator initially looks correct.
- Select the correct speed. Use the POH, AFM or operating procedure. For piston aircraft this may be Vx, Vy or a cruise-climb speed; our explanation of Vx, Vy and the other published V-speeds explains when each reference applies.
- Set power and attitude. Apply the appropriate climb power, or reduce power for the descent, then establish an attitude that holds the required speed.
- Trim and let the aircraft settle. Read the resulting vertical speed after it stabilises rather than chasing every movement of the needle or tape.
- Adjust for the task. Change power, pitch or drag if you need to meet an altitude restriction, descent path or comfortable passenger rate while retaining a safe speed margin.
An ATC-requested vertical rate must still remain within the aircraft’s safe performance. In real operations, a pilot who cannot maintain an assigned rate advises ATC rather than sacrificing airspeed or exceeding a limitation.
Which autopilot vertical mode should I use?
Use a speed-based climb mode when preventing airspeed loss matters more than holding an exact rate. Depending on the aircraft, this may be labelled FLC, FLCH, LVL CHG or IAS; mode names and thrust logic differ between types.
- V/S mode: useful for small, controlled altitude changes when you can monitor thrust and airspeed closely.
- Speed-based mode: usually preferable for climbs because the autopilot changes pitch to maintain the selected airspeed.
- VNAV: suitable when the aircraft has a correctly programmed vertical profile and you understand whether it is commanding a path, speed or rate.
A mistake we see constantly is selecting a high positive V/S and assuming the autopilot will protect the aircraft. If thrust is insufficient, the autopilot raises the nose to preserve the selected rate and the airspeed decays. In descent, an excessive negative rate can cause an overspeed or leave the aircraft too fast for the approach.
How do I calculate vertical speed for a three-degree descent?
For a three-degree descent path, multiply ground speed in knots by about 5.3 to estimate the required descent rate in feet per minute. Multiplying by five is the common quick cockpit approximation.
Descent rate (ft/min) ≈ ground speed (kt) × 5.3
- 90 knots: about 480 ft/min
- 120 knots: about 640 ft/min
- 150 knots: about 800 ft/min
- 240 knots: about 1,270 ft/min
Use ground speed, not indicated airspeed, because wind changes how quickly the aircraft travels along the ground-relative descent path. This calculation tells you the rate once established on the path; the separate top-of-descent planning method accounts for height to lose, distance and deceleration.
Why does the vertical speed keep changing?
Vertical speed changes because climb and descent performance is not constant throughout a flight. The main causes are:
- Altitude and temperature: reduced air density generally lowers piston-engine and aerodynamic climb performance.
- Weight: a heavier aircraft normally climbs more slowly at the same speed and power.
- Configuration: landing gear, flaps, spoilers and icing add drag.
- Selected airspeed: pitching for a faster climb speed usually reduces the vertical rate; pitching too slowly can move the aircraft towards a stall.
- Rising or sinking air: thermals, mountain waves and downdraughts affect the indicated rate independently of pilot input.
- Changing ground speed: this alters the rate needed to maintain a ground-referenced descent angle.
What vertical-speed mistakes should I avoid?
The most damaging mistake is treating the VSI as a target without cross-checking airspeed, attitude, power and flight path.
- Do not chase the indication. Conventional VSIs lag behind the aircraft’s actual movement. Make a small attitude or power change, pause, and assess the trend.
- Do not force a climb rate near the ceiling. Accept a lower rate as performance decreases, or use a speed-based autopilot mode.
- Do not dive to recover a descent profile. If high and fast, reduce the rate temporarily if speed is excessive, use permitted drag, extend the track or discontinue an unstable approach.
- Do not confuse rate with path angle. The same 800 ft/min descent is steep at low ground speed and shallow at high ground speed.
If the indicated rate seems delayed, erratic or inconsistent with the altimeter, check how the VSI senses and displays climb or descent. A blocked static source or simulation instrumentation fault can make the indication unreliable.