Runway Performance

Aircraft

Flight

Route and timing

Departure Arrival

Date EOBT

Aircraft weight

Estimated fuel used—Avgas at 0.710 kg/L

Landing950 kg

Take-off998 kg

862 kg1,043 kg

Distance—

Planning TAS105 kt

Take-off—

Landing—

Enter the route and timing, then press Calculate.

Departure

EGNH Manual data

Time — Manual

✎

Inputs

Runway Available m Surface Slope % + uphill Wind from °M Wind kt Gust kt QNH hPa Temperature °C Elevation ft Take-off flap setting

Runway reference data is physical length, not declared TORA/TODA/ASDA. Override with current published data.

Weather used forManual

Wind sourceManual

Temperature / QNHManual

Raw weather reports and validity

Manual values.

Latest METAR: not loaded. Latest TAF: not loaded.

↗

Take-off

50 ft basis

Ground roll—

Over 50 ft—

CAA requirement—

Personal minimum—

Remaining—

N ESW

RWY✈

Head / tail—

Crosswind—

Pressure altitude—

Density altitude—

Crosswind ≤50%Crosswind 50–80%Crosswind >80% Tailwind: none within POH data beyond POH data

POH distance CAA safety margin Personal minimum Runway remaining

—

Runway dimensions unavailableAwaiting valid result

Take-off performanceAWAITING DATA

Enter valid inputs.

Calculation details

Arrival

— Manual data

Time — Manual

✎

Inputs

Runway Available m Surface Slope % + uphill Wind from °M Wind kt Gust kt QNH hPa Temperature °C Elevation ft

Runway reference data is physical length, not declared LDA. Override with current published data.

Weather used forManual

Wind sourceManual

Temperature / QNHManual

Raw weather reports and validity

Manual values.

Latest METAR: not loaded. Latest TAF: not loaded.

↘

Landing

50 ft basis

Ground roll—

From 50 ft—

CAA requirement—

Personal minimum—

Remaining—

N ESW

RWY

Head / tail—

Crosswind—

Pressure altitude—

Density altitude—

Crosswind ≤50%Crosswind 50–80%Crosswind >80% Tailwind: none within POH data beyond POH data

POH distance CAA safety margin Personal minimum Runway remaining

—

Runway dimensions unavailableAwaiting valid result

Landing performanceAWAITING DATA

Enter valid inputs.

Calculation details

Summary

Flight performance

Awaiting results

Load or enter departure and arrival data.

Preferences

Settings

Appearance

ThemeAircraft colours are retained in both themes.

Flight planning

C172N planning TAS kt PA-28 planning TAS kt Taxi-out allowance min Personal margin %

EOBT is off-block time. Estimated take-off adds the taxi allowance; estimated landing then adds still-air route time at the selected planning TAS.

Data and limitations

G-BOIY: standard 1978 C172N POH dataset. Aircraft-specific engine, propeller, supplements and modifications remain unconfirmed.

G-BRBA: PA-28-161 Report VB-880 dataset. The nomograph model remains beta and is not confirmed as aircraft-specific.

Airport/runway metadata, METAR and TAF data are retrieved primarily from NOAA AviationWeather.gov. EGBO uses a verified local fallback because it is absent from that airport response. Hourly temperature and pressure forecasts use Open-Meteo. All fetched values remain editable.

Development tool only. Verify every result against the applicable POH/AFM, supplements, current aerodrome publications and actual conditions.

Aircraft photographs

G-BOIY and G-BRBA photographs by Alan Wilson, used under CC BY-SA 2.0 via Wikimedia Commons.

G-BOIY source G-BRBA source Licence