FAA Approves Chelton Flight Systems’ Synthetic Vision EFIS for Bell 427

Keystone Helicopter Corporation has been granted an STC permitting installation of a Chelton Flight Systems’ Synthetic Vision EFIS system in Bell 427s.


Boise, ID – Keystone Helicopter Corporation has been granted an STC permitting installation of a Chelton Flight Systems’ Synthetic Vision EFIS system in Bell 427s. The STC will be available in a standard, two-screen system with a Primary Flight Display (PFD) and Multi-Function Display (MFD).

Said Jim Scanish, Keystone Sales Manager: “We are very excited about this STC approval. The customer is extremely satisfied and I see a great future for the system. We are looking forward to doing many more Chelton installations.”

The Chelton EFIS uses 3D graphic technology to translate the terrain ahead of and around the helicopter into a simple, real-time visual picture. This helps the pilot “see” aircraft position in relation to its surroundings regardless of darkness or weather conditions. This display reduces instrument scanning and pilot fatigue by consolidating readings of several instruments into one efficient tool, resulting in safer execution of flight plans and procedures. Each EFIS features primary flight instruments, GPS (Global Positioning System) with WAAS (Wide Area Augmentation System), moving map, terrain display, optional weather and traffic display, fuel totalizer, and easy push-button flight planning. The system also fulfills the FAA’s TAWS (Terrain Awareness Warning System) mandate for fixed-wing turbine aircraft. Class A and B Helicopter TAWS (H-TAWS) are also available with the EFIS. The system is compatible with NVG equipment.

Chelton’s EFIS is also STCd for: Bell 204, 205, 206, 210, and 407; Eurocopter AS 350/355, EC 120B; and MD520N. Coming soon, MD902.

For more information, contact Jim Scanish at Keystone Helicopter Corporation: 610.883.4545 or www.keystonehelicopter.com; or Rob Creighton at Chelton Flight Systems: 208.389.9959 or www.cheltonflightsystems.com.

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