geoprimsField-grade geospatial math

Maximum holding airspeed

The maximum holding airspeed for your altitude from the AIM table (200, 230, or 265 KIAS), or a published limit, with a flag when your planned speed is above it.

Planning and education aid. Not for primary navigation. Full disclaimer

Experimental: not yet fully verified. How results are checked

230kt

The maximum holding speed is 230 kt (AIM table 5-3-1, 6,001 ft through 14,000 ft). Your planned speed is above it.

  • Caution:240 kt is above the 230 kt limit (AIM table 5-3-1, 6,001 ft through 14,000 ft). Slow down 3 minutes before the fix (AIM 5-3-8).
Basis
Planned speed
Provenance
Computed by
aviation.ifr.hold-speed-limit 1.0.0, core 0.1.0
Model
AIM table 5-3-1: 200 KIAS through 6,000 ft, 230 KIAS from 6,001 to 14,000 ft, 265 KIAS above; a published limit on the chart overrides
Accuracy
Reference data as of the AIM edition cited. Military fields and some procedures use other limits; the chart and ATC govern.
Notes
2 shown with the answer
Cites
Federal Aviation Administration, Aeronautical Information Manual

Something look off?

Your values

Showing an example. Change anything.
More options 1
Run many at once from a CSV

Loading…

How we got thisFormula, worked example, sources, and proof

Model: AIM table 5-3-1: 200 KIAS through 6,000 ft, 230 KIAS from 6,001 to 14,000 ft, 265 KIAS above; a published limit on the chart overrides

Accuracy: Reference data as of the AIM edition cited. Military fields and some procedures use other limits; the chart and ATC govern.

Worked example: Holding at 8,000 ft planning 240 KIAS. Source: AIM 5-3-8 table 5-3-1: 230 KIAS from 6,001 ft through 14,000 ft.

You enter

Holding altitude
8000 ft
Planned airspeed
240 kt

You get

Maximum holding airspeed
230 kt
Basis
AIM table 5-3-1, 6,001 ft through 14,000 ft
Planned speed
above the limit

Review: Not yet independently reviewed by a flight instructor (CFI).

Last verified: 2026-09-23, when a maintainer last confirmed this tool's sources at the issuer. See the sources ledger.

Status: version 1.0.0, core 0.1.0. See this tool in the verification report.

Checked against: 6 golden test vectors (download the test vectors, each with its source and tolerance). See how results are checked and every source.

Sources

Experimental means this tool has not yet met the stable bar: at least 20 golden vectors, differential tests, and an independent worked example.