Inertial navigation system for PNT in GPS-denied and EW jamming environments introduced by Safran

The inertial navigation system achieves better than 0.4 nautical mile per hour drift for sustained accuracy in GPS-contested or denied environments.
Nov. 26, 2025
2 min read
The Safran Blacknaute inertial navigation system is for secure position, navigation, and timing (PNT); geospatial intelligence; and space applications.

Summary points:

  • Safran Federal Systems unveils the Blacknaute inertial navigation system for secure PNT and military-grade geospatial and space applications.
  • Provides precision navigation in GPS-denied and electronic warfare environments with performance under 0.4 nautical mile per hour drift.
  • Features Safran’s HRG Dual Core technology, M-Code support, and ultra-stable timing with less than one-second drift in 30,000 years.

ROCHESTER, N.Y. – Safran Federal Systems in Rochester, N.Y., is introducing the Blacknaute inertial navigation system for secure position, navigation, and timing (PNT); geospatial intelligence; and space applications.

The next-generation inertial navigation system is engineered to deliver precision navigation in GPS-denied environments, and amid electronic warfare (EW) jamming and spoofing.

Built for U.S. military applications, Blacknaute is powered by Safran's patented HRG Dual Core technology, and is for current and emerging military systems that require resilient PNT.

The inertial navigation system achieves better than 0.4 nautical mile per hour drift for sustained accuracy in GPS-contested or denied environments.

Hemispheric resonator gyro

Its hemispherical resonator gyro offers decades of proven military and space-grade performance, and has integrated multi-constellation receiver with M-Code support for secure military satellite navigation.

It offers precise timing with drift of less than 1 second per 30,000 years to enhance system integrity and synchronization, while its interference detection and mitigation supports jamming and spoofing resistance and threat awareness.

It weighs less than 16 pounds, has a modular design, and is ruggedized for fixed-wing aircraft, helicopters, and autonomous systems.

MIL-STD interfaces and TSO-C220 compliance, and aligns with open-systems architecture designs. For more information contact Safran Federal Systems online at www.safranfederalsystems.com.