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The "Twotter" EFB app

Overview

The EFB app is an integral part of the mod, unlocking many of its features. I recommend you make yourself familiar with it when you first start the mod.

The app can be started from the "More Apps" tab of the EFB (bottom row of the EFB, rightmost icon).

Recommended first step in the app: check out the Config tab, pick a profile that fits your expectations and adjust the options from there.

Disclosure modes

Note the toggle at the top, between the notification icon and the timestamp. It displays the mode the app is currently in:

  • "Limited" tries to limit the information presented on some of the tabs to what would be available to the pilot in flight. It also hides some tabs completely, e.g. the Radio and TAWS tabs.

  • "Instructional" lifts this restraint and offers insights that might help you understand system internals as they happen.

Click it any time to switch between modes. If you're a roleplayer, consider it the "cheat button".

Warning

Information presented in the EFB app that appears to reference real-world data or information is FOR SIMULATION USE ONLY. The Checklists and Reference tabs explicitly say so.

Notes

  • This manual is available on the Manual tab of the EFB app.

  • If the WASM module or panel configuration fails to load, the EFB shows a splash saying so, with a "continue anyway" option, plus an SOS blink on the hydraulic-pressure warning lamp. Note that the aircraft is not airworthy if the basic components fail to load.

  • Systems: The Anchor button (float and amphibian variants) freezes the aircraft in place on the water. It's a hack and placeholder for a better anchor or mooring system down the line.

  • Systems: The Headset toggle muffles engine and gyros sound ONLY when the companion sound mod is in use.

  • Payload: The load manager has a "Redist fuel" button specifically for FSEconomy users. You can also move the fuel slider back and forth to balance the fuel. To set fuel in individual tanks, use the standard Weight & Balance app.

  • Payload: The default passenger weight is configurable on the Config tab to a fixed or random weight.

  • Instruments, Ice: Some tabs are work in progress. Who am I kidding? Everything is constantly work in progress!

  • Reference, Manual: The navigation bar on the left can be hidded to reveal more of the content.

  • Reference: The Performance sections contain some experimental renderings of Live Performance Charts that try to help you decipher performance charts.

  • Maint: The Maintenance tab is only available when the Reliability slider on the Config tab is not in the "Off" position and the session has been restored. It is hidden in "Limited" mode if an engine is running.

Reviewed 2026-08-09.