UAV USV UGV

Navigate
Without GPS.

Passive navigation for drones, vessels, and ground vehicles.
Zero RF. No infrastructure. Unjammable.

→ See the product → Live test results
Not just heading.
Full navigation.
FNAV uses the stars and the sun to build navigation — a fully passive, zero-RF method with no error accumulation. VIO and map-matching run alongside as a fallback, providing precise short-term positioning. GPS replacement, not GPS supplement.
Our Mission
FNAV Systems is a Ukrainian defense technology startup. We build passive navigation for UAV, USV, and UGV platforms — full GPS-denied navigation, not just heading correction. So every Ukrainian platform navigates reliably under full GPS jamming. Built by Ukrainians, for Ukraine's victory.
Key Specs
Accuracy
On Request
Accuracy
Module Weight
100g
plug-in payload
RF Emissions
Zero
fully passive — undetectable
Platforms
UAV
Unmanned Aerial

Fixed-wing, multi-rotor, loitering munitions. StarNav + SolarNav output via MAVLink into ArduPilot or PX4.

MAVLink / ArduPilot / PX4
StarNav night + SolarNav day
Passive optical sensor
USV
Unmanned Surface

Open-ocean vessels where map matching fails entirely. Validated on real vessel telemetry provided by 2 companies (NDA).

Validated with 2 partners (NDA)
SolarNav optimized
Open-ocean routing
UGV
Unmanned Ground

Ground vehicles and autonomous rovers in GPS-jammed environments — urban terrain or open field.

UART / I2C output
StarNav + SolarNav
Custom integration
Partners
BRAVE1 Validated

Defence primes and suppliers. Details undisclosed.

Deploy FNAV on your platform.
We work with defense units, integrators, and allied partners.
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