Compare flights
Line up to 6 flights from your logbook — a launch day, a season, or several altimeters that flew the same rocket — and read their curves and numbers side by side. Independent measurements stay independent: they're shown next to each other, never averaged into one figure. Reading a single flight lives on the analyze page.
Drop a launch day’s files, or its folder, here to start
Drop 6 or fewer and they're compared straight away; they go into the logbook below on the way through, and never leave this device. Reading stops once 6 flights are in — that's one stroke colour each, and more than that is a chart nobody can read — so anything after them is named for you rather than opened.
Reading one flight, and mapping a file Debrief doesn't recognize, live on the analyze page.
Looking for flights remembered on this device…
Where the numbers come from
Debrief is a measurement instrument, not a simulator: every number is a reading of your own recording, worked out the same way for every logger and labelled wherever it's derived or approximate. See exactly how each one — apogee, velocity, thrust-to-weight, drag and parachute Cd, recovery drift and the rest — is calculated, and where it can be wrong.