PaleRavenPaleRaven

PaleRaven

Autonomous survivabilityContested airspace
01 · Mission

Maximize survivability. Control-authority takeover when it matters.

Slipstream is the PaleRaven survivability layer. Autopilot- and airframe-agnostic, delivered as a plug-and-play companion module running on an external compute board wedged between the autopilot and the sensor suite — MAVLink v2 north-bound to the autopilot, structured events south-bound to the sensors. No firmware fork, no autopilot replacement.

It is, by design, a survivability platform — built to raise mission success rate by acting on external sensor data in real time and acquiring control authority from the autopilot to execute evasive manoeuvres. GPS denial, jamming and multi-detector spoofing concurrence are all detected on the same loop; the response posture for each is operator-declared in the trigger and modes[] catalogue.

02 · Capabilities

Maximise survivability.

PR · Slipstream

Defensive survivability layer

A configurable sensor layer feeds the supervisor. On a declared trigger condition, Slipstream acquires control authority, executes the configured manoeuvre, and returns the airframe to its planned route once the threat clears. Triggers, manoeuvres and authority levels are operator-defined at integration time.

  • 01Hostile-fire ingress trigger (Overwatch acoustic sensor)
  • 02GPS jamming and signal-denial response
  • 03Dead-reckoning degradation — declared end-of-mission posture
  • 04Multi-detector GPS-spoof concurrence
Learn more about Slipstream→
PR · Overwatch

Acoustic threat detection

Passive microphone array detecting supersonic projectile ingress, ballistic crack and gunfire signatures. Detections are handed to Slipstream with ultra-low latency — break-turn before the next round arrives.

  • 01Supersonic projectile ingress detection
  • 02Sub-30 ms detection-to-supervisor handoff
  • 03Passive sensor — no RF emission, no detectable signature
  • 04Sustained-fire engagement support — burst-tolerant detection chain
Learn more about Overwatch→
03 · Control Authority

Authority,
configurable.

Each manoeuvre is registered with a configurable authority level. A higher-authority response — say, projectile evasion from an acoustic detection — takes precedence over an active lower one — say, the response running because of a GPS-spoofing event. When the higher-authority manoeuvre completes, the previous one resumes from where it was interrupted.

Stateful supervisor
Prioritised manoeuvre stack
Configurable authority levels
Preempt + resume on exit
Live·FlightModeStack
Current State·nominal
T = 00:04:23.117
DefensiveEvasion
IDLE
GpsDeniedResponse
IDLE
EkfDegradedResponse
IDLE
NominalNavigation
BASE
t+0.0sinfoVehicle regime: FIXED_WING
04 · Safety

Watched
twenty times
a second.

Slipstream runs alongside your autopilot — not in place of it. The supervisor checks the airframe, the envelope, and the threat picture twenty times a second, and only acquires control when an operator-declared trigger fires. A custom low-latency supervisory loop continuously verifies the configured flight envelope and attitude limits, ensuring no airframe limit is exceeded and the vehicle remains within its defined flight envelope at all times.

20 HzENVELOPE
Supervisor loop

Real-time check rate on attitude, altitude, airspeed, and trigger evaluation. Every 50 ms the supervisor decides whether to keep, acquire, or release control.

Per-frameENVELOPE
Flight envelope gates

Attitude limits, airspeed bounds, and altitude floors configured per airframe. On breach the supervisor releases the topmost active mode and hands control back to the autopilot.

Always-onENVELOPE
Envelope protection

Every manoeuvre the supervisor commands is bounded by the configured envelope, and authority is handed back the moment a limit is approached. Terminal recovery — stall recovery, SAFE_MODE, RTL — remains with the autopilot end-to-end.

Field-validatedENVELOPE
Real-world flight tests

Continuous CI pipelines run simulator-driven integration tests against integrated SITL, holding zero regression and platform stability across both rotary- and fixed-wing regimes. Control-authority handover is verified end-to-end through real-world flight testing.

05 · Engagement

Operate in airspace
you don't fully own.

Slipstream is delivered as a flight-software layer integrated with your autopilot of choice.

Request technical brief→Schedule a SITL walkthrough→