ACARS Message Sandbox

Build ACARS transmissions in your browser. Xbox and PC crews can rehearse the templated flow here before jumping into the RealRadio client. Nothing you create on this page is transmitted—use it as a safe rehearsal space or as a development harness while the backend endpoints firm up.

1 Select a category, subcategory, then phrase.
2 Review auto-filled SimVars and tweak any fields.
3 Copy the output or add it to your sandbox log.

Flight context

Start with canned demo data or, when signed in, pull your last MSFS session to match what the in-sim RealRadio client will send.

ACARS message composer

Use the dropdown menus to browse the seeded categories, then personalise the dynamic fields before copying.

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Category

Subcategory

Phrases

Select a phrase to configure its dynamic fields.
Message text
Payload JSON
/* Select a phrase to generate payload JSON */

Sandbox log

Messages here are stored in-memory only—perfect for rehearsing flows with your crew.

Compose a message and choose “Add to sandbox log” to start a trail.