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Data release v20260914_020943 Generated 2026-09-14 Methodology Report missing resource

Comparing Flight-Stack Repositories

A source-linked method for comparing flight-control repositories without inventing conclusions.

Last reviewed 8/7/2026. Data checked within the review cycle. Review cycles are documented on the Methodology page. Methodology

comparison Reviewed 8/7/2026

Problem definition

I need to compare open-source flight stacks but want the comparison to stay grounded in repository evidence.

Steps

  1. Define comparable fields

    Pick fields that exist in the official records: license, last activity, documentation entry points. Do not invent fields the sources do not provide.

  2. Collect values per stack

    For each stack, copy the value and the source URL into your comparison table.

  3. Mark unverified fields Unknown

    Any field without a source stays Unknown. Never fill a gap with an assumption.

Guide

Compare

Use the repository activity, license field and official documentation links shown on each resource page.

Judgment criteria

  • Every table cell is traceable to a source URL and retrieval date.
  • The comparison explains the verification sequence rather than declaring a winner.

Common risks

  • Comparing fields that only one repository documents.
  • Turning a metadata comparison into a performance or safety conclusion.

Checklist

Related technical resources

FC
Flight Stack Tier A

paparazzi/paparazzi

Official confirmed

Paparazzi is a free and open-source hardware and software project for unmanned (air) vehicles. This is the main software repository.

Flight Control Autopilot Drones +5
GPL-2.0 Inferred Checked 20d ago
Details Official Repository

Next steps