This proposal responds to the urgent need for improved pilot interfaces in the modern aircraft cockpit. Recent advances in aircraft equipment bring tremendous resources within the reach of the today's pilot. Unfortunately, these advancements are often accompanied by increases in system complexity and pilot workload. In many cases, the detailed interaction required by modern avionics significantly interferes with the pilot's need to scan instrument gauges, maintain visual separation from other aircraft, and attend to other critical tasks. To address these concerns, PragmaSoft's proposal combines innovations in robust speech recognition and interface design with powerful application language constraints to deliver highly effective voice interface solutions. Development efforts are carefully target at high workload pilot tasks to ensure substantial benefits and commercial acceptance. Initial product sales are leveraged to collect an extensive corpus of actual (in-flight) speech and operational data for subsequent research and development. PragmaSoft believes that the lengthy and focused attention required to operate some aircraft devices presents an unacceptable safety risk to flight operations. The proposed innovations deliver effective and commercially attractive voice interface solutions that allow pilots to interact with their cockpit environment in a safer and more efficient manner.