New: fuel used, worked out from the gauge

November 2026 · Flights

Pilots read the fuel gauge and know what went into the tank. Fuel used is arithmetic, so Flylogs now does it for them:

Fuel used = fuel on board at start + fuel uplifted between legs − fuel on board at end

On every flight

Aircraft that track fuel get two new fields on the flight form: Fuel on board at start and Fuel on board at end, read at engine start and shutdown. Fuel used appears under them as you type, and on the flight page, the flight PDF and the logbook export.

Uplifts between legs

For flights with legs — skydiving lifts, tows, survey runs — each leg now records the fuel uplifted after it: “after leg 3, 400 litres”. Fuel on board at a leg’s start and end is optional, and gives that leg its own fuel used. A new leg pre-fills its start fuel from the previous leg’s end plus the uplift.

Every uplift after a leg is added to the flight’s refuelling on Billing → Fuel & Excise, so nothing is typed twice.

Flight form fuel card: fuel on board at start 2400 lbs and at end 2110 lbs, fuel used 563.61 L with 400 L uplifted between legs — The fuel card on the flight form: gauge readings in pounds, fuel used worked out in litres.

Legs table with a Fuel used column: each leg shows litres used, its gauge readings in lbs and, on leg 2, +400 L uplift — On an aircraft that tracks fuel, the Fuel used column carries each leg's gauge readings and the uplift after it.

Better statistics

Consumption chart: filled dots for measured months, a hollow dot for September estimated from uplifts, headline measured burn 34.9 L per block hour — The Consumption tab on the aircraft page. Filled dots are measured from fuel on board, hollow dots estimated from uplifts.

The aircraft’s Consumption chart shows the fuel actually burned per hour for every month whose flights have start and end readings, instead of an estimate from uplifts.
The consumption check on Fuel & Excise compares aircraft on measured burn once they have 10 hours of readings.
The aircraft logbook export gains Fuel start, Fuel end, Fuel uplift and Fuel used columns.
The cloud storage flights file gains fuel on board at start and end.

Pounds on the gauge, litres at the pump

Your company can now set an uplift unit in Company Settings → Aircraft → Fuel, separate from each aircraft’s fuel tracking (gauge) unit: gauges in pounds refuelled in litres, for example. It is one setting for the whole fleet, because fuel is bought in the same unit whatever the aircraft. Set each such aircraft’s fuel type too, so pounds convert to litres with the right density (Jet A-1 0.804 kg/l). Without it Flylogs says so instead of guessing.

Company Settings, Flights tab: the Fuel uplift unit set to Litres — One uplift unit for the whole fleet.

1,500 lb at start, 400 l uplifted after leg 1, 1,100 lb at end, Jet A-1: fuel used is 625.7 l.

Manual: Flight legs → Fuel