The Radar Based Navigation (RBN) as A-PNT solution is based on advanced algorithms, processing on-board Active Electronically Scanned Array (AESA) radar returns from the ground-based beacons with known position stored in on-board database and Inertial Measurement Unit (IMU). The Radar Based Navigation is developed as hybrid solution providing full navigation information i.e., position, velocity and attitude. The navigation solution is intended to supplement other navigation sources during the final approach and landing phases of vertical take-off and landing (VTOL) operations, even in scenarios where the GNSS signal is lost, jammed, or spoofed.