When Airbus announced on April 1st that NAVBLUE had officially merged with its Skywise platform, it signaled a new chapter for global flight operations. For Waterloo Region, however, the retirement of the NAVBLUE name is a moment to reflect on our own deep aerospace roots.
That legacy traces back to a kitchen table and a garage in Elmira, driven by the quiet tenacity of Dorothy English. Following her recent passing on March 1st at the age of 83, the story of how she built the foundation for what would become a global aviation powerhouse deserves to be recognized.
Redefining Flight Operations
In the mid-1980s, flight planning was an expensive, cumbersome process tied to enormous, centralized mainframe computers operated by remote service bureaus. The industry needed a more agile solution. The initial spark came from an Air Canada 747 pilot, Ray English, who recognized that airlines could save millions by intelligently calculating “tankering” fuel—carrying extra fuel to bypass high costs at destination airports.
However, when the concept was pitched to operators, the demand expanded: the industry didn’t just want a fuel calculator; they wanted a complete, computerized Flight Operations Management System (FOMS) that could be run entirely in-house.
Dorothy English, with no formal background in computer engineering, took on the challenge. Setting up a Radio Shack TRS-80 microcomputer in their Elmira garage, she taught herself to code from the ground up. She successfully engineered a groundbreaking software system capable of calculating minimum-time routes along published airways, dynamically factoring in forecast winds and temperatures tailored to specific aircraft speeds and altitudes. She essentially put the power of a mainframe into a desktop microcomputer, shifting the entire paradigm of international flight operations.
Building a Waterloo Region Anchor
By 1987, the concept had grown into Navtech, officially moving out of the garage and into the burgeoning Waterloo tech ecosystem.
The 1990s were a transformative period for local aviation. Just as the Region of Waterloo was moving to assume full ownership of the International Airport (YKF) in 1996 to secure its logistical future, Navtech was scaling rapidly, putting the region on the map for aviation software.
Building a tech company in that era meant operating lean. Dorothy emerged as the driving force of the company. Relying heavily on bootstrapped funds and early angel investments, she navigated Navtech through faltering markets and internal transitions. She hired top-tier local developers to expand their product suite—eventually encompassing crew planning, aeronautical charts, and aircraft performance tools—while fostering a tight-knit, highly dedicated culture among her staff.
Her perseverance paid off. Navtech grew into an industry standard, serving hundreds of airlines globally, leading to its acquisition by Airbus in 2016. By merging Navtech with Airbus ProSky and LUCEM, NAVBLUE was born, maintaining a critical headquarters and talent hub right here in Waterloo.
A Lasting Legacy
Dorothy English’s journey from a self-taught programmer in Elmira to the architect of a system utilized by airlines worldwide is a testament to the kind of homegrown innovation that defines our community.
As we prepare to gather regional leaders and innovators for the third AeroWR Industry Roundtable later this month, her story serves as a powerful reminder of what is possible here. Dorothy’s code may have optimized flight paths around the globe, but her legacy remains firmly grounded in Waterloo Region—an enduring inspiration for our entire aviation, aerospace, and defence sector.
Source: Valerie Hill @ The Record
