Jan HusakPortfolio 2026
Project Volans / Test and analysis / #09

Faust digital twin

A model of Faust that predicts hover throttle, power, endurance and payload, and a simulator set up with Faust's real numbers.

Part of
Project Volans
Area
Test and analysis
Status
Planned
In the loop
Check
01 / What it does

The project

  • Mass build-up from the CAD, then thrust and power against throttle, first from momentum theory and maker data, later from the bench (#3).
  • Hover throttle, endurance and the energy a given mission needs. Volans Command (#6) uses it to reject missions the battery can't finish.
  • Hover time against payload from 0 to 300 g, the input for payload release (#15).
  • ArduPilot SITL configured with Faust's mass, size, motors and battery, so simulated missions behave like real ones.
02 / Why

What it gives Volans

A simulator that behaves like Faust means fewer surprises on the first flights and failsafe tests that mean something.

03 / Plan

Steps and targets

  1. 01Mass and CG table from the CADPlanned
  2. 02Hover and endurance with an uncertainty bandPlanned
  3. 03Mission energy functionPlanned
  4. 04Faust SITL frame and parametersPlanned
  5. 05Validate against bench and flight dataPlanned

Success looks like

  • Hover throttle within 5 % of the real Faust
  • Endurance within 10 % of a real hover test

Planned project. This page will be updated with results once the work is done.