Integrated GNSS solution
Overview
Introduction
Required Navigation Performance (RNP) is a new approach to navigation increasing the profitability, safety of aviation worldwide. RNP operation is mainly based on GPS (generic term: GNSS) technology, rather than groundbased radio navigation aids. RNP capable aircraft fly precise, predetermined paths loaded into their Flight Management Computer (FMC). On-boardperformance monitoring and alerting, a key feature of RNP, alerts the flight crew if their position becomes uncertain. RNP brings improved aircraft-track-keeping-performance in all flight phases, facilitating newroutes, access to new (remote)airports, environmentally beneficial arrival and departure procedures, optimised approach routing, allowing for shorter approaches and lower decision altitudes. Using the GNSS solution of Fokker Services can save your organization time and fuel and thereby reduce operating costs.
Your needs
Do you want to make your return on investment feasible in one year? Fokker Services has developed a unique solution for providing a low-cost means of modernising the airborne navigation system without replacing existing equipment or making extensive changes to the aircraft. This solution is far more cost effective and pays off within one year. GNSS-derived navigation data is combined with the original inertial navigation data and fed into the existing FMS. The added GNSS functionality is fully integrated with the existing FMS, flight instrumentation and automatic flight control system.
Your benefits
Our GNSS solution offers multiple benefits:
- Shortening routes up to 8%
- Reduction in fuel and noise emissions
- Navigation in remote and oceanic areas
- Independent of ground-based navigation aids
- Access to remote airports
- Enhanced safety
Product Description
Technical concept
RNP is enabled by the addition of a GPS-IRS data Converter (GIC) to a legacy FMS and the installation of a Navigation Status Display (NSD):
- IRS position to FMS is replaced by a GPS corrected IRS position.
- The FMS position is controlled to the GNSS position.
- The additional Navigation Status Display (NSD) provides navigation and system status data to the flight crew.
Required modification
The following equipment will be added to the existing FMS installation to enable the RNP navigation capability:
- 2x GPS-IRS data Converter - Navigation Status Display
- 2x GPS/WAAS receivers (TSO C145a) for high integrity position data
- 2x GPS antennas (TSO C144) for receipt of GPS satellite signals
- 1x FMS NAV Source Switch for selection of preferred FMS navigation source (RADIO/GNSS). Reversion capability to VOR/DME or DME/DME.
The RNP capability is established by introducing specified equipment, without changing the existing FMS and other related aircraft systems.
Your benefits
Our GNSS solution offers multiple benefits:
- Shortening routes up to 8%
- Reduction in fuel and noise emissions
- Navigation in remote and oceanic areas
- Independent of ground-based navigation aids
- Access to remote airports
- Enhanced safety
Launching Customer
“We are proud to be the first Fokker 100 operator to implement this system. We hope to achieve more flexibility in our operation, particularly in areas of Western Australia where traffic density is very high, due to the fly-in, fly-out workforce of the mining industry. Radar coverage is limited in these remote areas and ADS-B will reduce the reliance on procedural separation requirements.”