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Ceradon Systems · Veteran-owned

Fly the objective before the mission.

KESTREL is a mission-rehearsal simulator for small unmanned aircraft. Build the aircraft from real parts, pick any place on Earth, and fly it first-person on a laptop.

Generic motor stator detail rendered in Blender
Generic motor detail.Blender study, not a gameplay capture
In use by students in an Army training course and by robotics detachments in two Army Special Forces Groups50 releases since July 2026Free public alpha

KESTREL · how it works

Pick the place. Build the aircraft. Fly it.

The flight model comes from the parts you fit, so a 5-inch and a 10-inch aircraft fly differently and run out of battery differently. The terrain is the real place, streamed.

KESTREL v0.44 screen capture.
01 · Pick the place. Search a city or enter a grid, then set the launch point, time and weather.v0.44 capture
KESTREL v0.44 screen capture.
02 · Build the aircraft. Fit real catalog parts. Each is checked for compatibility, and the model predicts thrust, hover and endurance.v0.44 capture
KESTREL v0.44 screen capture.
03 · Brief the mission. A mission brief over the real area, with standard military map symbols.v0.44 capture
KESTREL v0.44 screen capture.
04 · Fly it. First-person flight on a USB radio, scored when you finish.v0.44 capture
Windows x64 public alpha
v0.44
Download from GitHub
Free
Releases since July 2026
50

KESTREL, in full

KESTREL is alpha software. Its flight model is fitted to published thrust-stand and wind-tunnel data and has not yet been validated against real flights.

More flights

Canyon, city, ridgeline, field.

KESTREL in-sim capture.
Canyon at dawn
KESTREL in-sim capture.
City in haze
KESTREL in-sim capture.
Banked turn over a ridgeline
KESTREL in-sim capture.
Low pass over a field

COTS ARCHITECT

Know what you can build before you build it.

From a lab parts spreadsheet to a validated UxS build, the batteries and spares it needs, an RF check over terrain and a handoff package. Offline Windows app, in private alpha.

COTS ARCHITECT link table listing distance, margin, quality, line of sight and clearance per link.
The link check screen: margin and line of sight per link.App screen
  1. 01Inventory
  2. 02Build
  3. 03Mission support
  4. 04RF check
  5. 05Handoff

How to buy or ask

What you can get today.

  • KESTREL

    Mission-rehearsal simulator for small unmanned aircraft.

    Free downloadUnit licences and trials: talk to us

  • SCOUT

    Federal opportunities scanned and scored for a small business.

    Free planPaid plans $49, $99 and $199 per month

  • COTS ARCHITECT

    Offline UxS build planning from the parts in your lab.

    Request accessPrivate alpha · Windows

  • EARSHOT

    Radio coverage and communications planning over real terrain.

    Request accessAlpha

  • Intelligent Systems

    A connected set of AI agents installed in your business.

    From $2,500Scoped on a discovery call

  • Gear

    4S dual-power goggle battery pack. meshwatch is in development.

    $150Plus $10 US ground shipping

Bring the problem.

We’ll tell you plainly whether our approach fits. If it doesn’t, you’ll hear that on the first call.

New builds

Get each KESTREL release by email.

One short note per release, with the download link. Reply to stop.