HOLDOVER TIME CALCULATOR / WINTER 2026–2027

Holdover time.
Without the noise.

A focused iPhone tool for checking holdover time, interpreting weather conditions, and keeping the relevant limitations in view.

Offline calculationsNo account requiredLight & dark appearance

Independent reference tool for cross-checking only. Official publications and operator procedures take precedence.

HOTmate dark appearance showing an active frost calculation
HOTmate holdover time result in light appearance

Actual app screens · iPhone

01 / THE WORKFLOW

Everything you need.
Nothing in the way.

Designed to make the next useful piece of information easy to find, without crowding the calculation.

01

Weather, interpreted clearly

Enter conditions manually or use the app's weather input tools. Snowfall intensity is derived from relevant visibility and day/night conditions when applicable.

02

Fluid-specific selection

Choose the fluid and applicable dilution. Temperature and fluid limitations stay connected to the result.

03

Restrictions that stand out

Valid states remain quiet. Prohibited conditions are explained next to their cause, with no ambiguous green result to distract from the warning.

04

A session that stays legible

Follow remaining holdover time, view the start and expiry in local time or UTC, and update weather during the session.

02 / THE INTERFACE

Made for a quick glance.

Real screenshots from the current iPhone interface. Select a screen to view it at full size.

Screenshots illustrate example inputs and app behaviour, not operational authorization or a guarantee of a particular HOT.

03 / THE APPROACH

A professional tool
should feel inevitable.

HOTmate follows a deliberately quiet design language: fewer choices at once, values more visible than labels, and color reserved for meaning.

PreciseStrict interpretation. Clear context.
OperationalOne task, one obvious next action.
TrustworthyConstraints remain visible.

04 / DATA & RESPONSIBILITY

Built around the 2026–2027 winter season.

The embedded HOT reference dataset is based on the FAA Holdover Time Guidelines, Winter 2026–2027 (original issue: August 11, 2026), subject to the applicable general information, source limitations and operator-specific procedures.

HOTmate is not affiliated with or endorsed by the FAA, any airline, aircraft manufacturer or regulator. It is intended only to cross-check your own calculations, never as the sole basis for operational decisions.

Read the full disclaimer

HOTMATE FOR IPHONE

Less interface.
More clarity.

Explore HOTmate on the App Store. Free to download.

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