01
Multi-leg roster tracking
Build a full day of sectors. Delay minutes carry forward on their own — one late arrival reshapes every departure that follows, exactly as a dispatcher would see it.
Desktop app · Microsoft Flight Simulator
A delay doesn't end when the flight does.
Real airline operations carry their problems forward. Eighteen minutes lost on the first sector eats the turnaround on the second and moves every departure after it. OnTime Turnaround tracks that cascade across your whole roster — automatically, from the simulator, without a stopwatch.
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- Sectors per session
- Unlimited
- Flight plans
- SimBrief OFP
Roster OTT-4417TrackingA320 · EI-DEXDuty 05:13 · 3 sectors
| Leg | Flight | Route | STD | ATD | STA | ETA | Turn | Pax | Status |
|---|---|---|---|---|---|---|---|---|---|
| 01 | OTT101 | EIDW→EGKK | 11:45 | 12:17 | 13:05 | 13:26 | — | 174 | +32 Departed |
| 02 | OTT102 | EGKK→EDDM | 13:35 | 13:41 | 15:25 | 15:31 | 15m | 168 | +6 Carried |
| 03 | OTT103 | EDDM→EGPH | 15:55 | 15:55 | 17:30 | 17:30 | 24m | 171 | Recovered |
Delay propagation — scheduled vs. actual · modelled on a 15 min minimum turnaround
15 min slackNo bonus
Leg 01
Leg 02
Leg 03
Scheduled blockActual — on timeActual — delayedActual — 15 min or more late
Leg 1 pushes back 32 minutes late and makes up 11 minutes airborne, arriving +21. A real turnaround still needs about 15 minutes on the ground, and on Regular you schedule 30 — so there are only 15 minutes of slack to claw back. Leg 2 leaves +6, and the Munich turnaround absorbs the rest — Leg 3 departs on time. You enter none of this; it comes from the simulator.
What it does
Most flight trackers treat every departure as the first one of the day.
They log a flight, score the landing, and forget it. But almost nobody flies one sector and stops — and in real operations the sector you just flew is the reason the next one is late. OnTime Turnaround is built around that single fact.
02
SimBrief, attached per sector
Operational flight plans are fetched and bound to the active leg. The next OFP generates in the background and is waiting before you need it.
03
Phase detection from telemetry
Off blocks, airborne, on blocks — read from the simulator at 100 ms and timestamped without you touching anything. No stopwatch, nothing to forget.
04
Turnaround pressure that bites
Ground time is finite. Arrive late and the turnaround compresses — the same trade a real crew makes between an on-time departure and a proper walkaround.
Sequence
Three steps, then it gets out of the way.
- 1
Build the roster
Lay out the day leg by leg — scheduled times, aircraft, and the sector order you intend to fly. Or generate one from a real airline schedule.
- 2
Connect the simulator
The bridge reads FSUIPC and streams state to the desktop app. Start it once and forget it is running.
- 3
Fly the day
Actual times, delay carry-forward, and the next OFP update themselves as each sector moves through its phases.
Development log
What we've been writing about.
Build status
Percentages are honest, not marketing.
Where the build actually is.
98%
across 13 features in flight
Select Airline SchedulesTesting
Challenging AirportsTesting
Early access
Fly the whole day, not one leg of it.
Join the waitlist for 15% off at launch. We'll only mail you about the release and your discount.
By joining the waitlist you agree to our Privacy Policy & GDPR Notice. We will only contact you with launch updates and your discount. You can unsubscribe at any time.