onRails – v1.2 Preview

onRails · ShippING in v1.2

Race day, prepared.

v1.2 is built around one idea: preparing for race day. Qualifying, fuel, tires, and pit strategy become four connected steps, and everything you capture now lives in Garage where you can find it again.

Race Weekend Program

Four programs, one goal: show up to the race with real numbers instead of a hunch. Run them in order and the fastest strategy falls out the other end — no spreadsheet required.

Race Weekend Programs hub showing four program cards: Qualifying, Fuel, Tire, and Pit Strategy

  1. 1
    Qualifying ProgramDials in your qualifying trim separately from your race setup.
  2. 2
    Fuel ProgramCalculates your consumption per lap and saves tank capacity straight to Garage.
  3. 3
    Tire ProgramBuilds a wear curve from your own laps to predict degradation across a stint.
  4. 4
    Pit Strategy ProgramTakes the Fuel and Tire data and works out your fastest pit-stop plan for the race.

Pit Strategy

Top-3 best plans, ranked by predicted race time. Force multiple compounds, set your refuel rate and tire-change time, or require mandatory stops — the plan that comes out fastest is marked Recommended.

Pit Strategy screen showing a 3-stop recommended strategy and a 2-stop alternative, with lap time degradation charts for each stint

Three stops beats two here by a clear margin — onRails checks every feasible combination, not just the obvious one.

Pit Strategy screen with Strategy Variables expanded, showing multi-compound requirement, starting fuel, refueling rate, tire-change time, and mandatory stop count

Strategy Variables — every real-world constraint your series actually runs under.

Fuel & Qualifying Programs

Fuel: enter your numbers, or let onRails read consumption off 3 laps automatically. Qualifying: one change at a time, tested on track before the next.

Fuel Program screen showing tank capacity, consumption per lap, and a computed result of fuel needed and extra stops required

Fuel Program

Qualifying Program screen showing step 1 of 5: Open up the engine, with guidance text

Qualifying Program

Tire Program

Drive a stint on a compound and onRails builds a degradation curve from your own lap times — when to pit, and how much fuel to carry for that stint.

Tire Program panel with pit-lap recommendations, next to the Tire Degradation Graph plotting lap time against tire age for Soft, Medium, and Hard compounds, with crossover markers

Garage gets a real home

The car editor now opens in its own window, with room to see what you’re working with.

My Garage

Fuel tank capacity is tracked per car and auto-fills from Fuel Program. Your subjects list collapses when you don’t need it, and lap history scrolls instead of piling up. Setup Developer’s Car Selection screen now has a My Garage tab too, so a saved car’s category, drivetrain, and history carry over the same way they already do in Setup Engineer.

Garage car editor for a Porsche 911 GT3 R showing 10 tracks and 24 sessions of history, fuel tank capacity, and an expanded Suspension subjects list with toggles

My Tracks

onRails now saves a track’s name, type, and stats automatically. Next time you load into that track, it’s already there.

My Tracks list showing several saved tracks with edit buttons

Every track you’ve run, saved automatically.

Track detail for Spa-Francorchamps showing Road type and 7.00 mile length

Type and length, ready to reload.

Broader telemetry, two new sims

SimReaders now track tire wear and fuel consumption per lap, which is what feeds Tire and Fuel Program. Two new SimReaders added:

F1’25 (2026 Season Pack)
Project Motor Racing

Everything else

  • Laptime charts in SDT and SE now show more detail across longer sessions.
  • Font sizes increased across the app, with fixes for labels that weren’t resizing and screens that needed scrollviews.
  • The progress indicator no longer shows stale data from a paused session on launch, and only appears after you resume.
  • Header icon buttons now stay bright while their panel is open.
  • Added Ukrainian and Indonesian language support.
onRails v1.2
Setup Creation and Engineering Suite