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DW International
Bespoke Solutions for Aviation

See us at the World ATM Congress

on the 8th-10th March 2016.

DW International is an independent consultancy which provides technical support in the fields of air navigation, civil air communications and air traffic management. The company is also the world's leading provider of RAIM predictions to ANSPs, CAAs, airlines and flight planning companies.

GNSS RAIM/RNP Prediction Service Web UI

The GNSS RAIM/RNP Prediction Service (GRPS) is now available via a Web User Interface (Web UI) for all operators using GNSS as a primary navigation aid or as part of a combination.


GNSS Performance Monitoring System

The GNSS Performance Monitoring System (GPMS) has been developed by DWI to provide States with a real-time monitoring capability and to help them comply with ICAO Annex 10 guidance.


Latest News

11 November 2015

GMCA Discussed at CGSIC

John Wilde, Chairman of the International Subcommittee of the Civil GPS Service Interface Commi...

More news...


RNAV Validation Tool

The RNAV Validation Tool – RVT – is a desktop application, developed by DWI for EUROCONTROL, to help procedure designers in the ground validation of new or modified RNAV SIDs and STARs. Ground validation is a key step between the design and the implementation of RNAV procedures. The RNAV Validation Tool provides a user-friendly, cost-effective method of ground validation with the capacity to input and update procedures, together with their supporting waypoints and navaids.