The design was intended to compete with other similar two-seat civil designs, such as the Thunder Mustang and the Turbine Legend. Military sales prospects included the Mexican Navy, but no orders were forthcoming.[3] [4]
The Sentry is a two-seat development of the four-seat Lancair IV, with the door-accessed cabin replaced by a canopy. It also has an enlarged vertical tail fin.[1] [3] [4] [5]
The aircraft features a cantilever low-wing, a two-seats-in-tandem enclosed cockpit under a rear-hinged bubble canopy, retractable tricycle landing gear and a single engine in tractor configuration.[1]
The aircraft is made from composite materials, predominantly carbon fiber reinforced polymer. Its 30.21NaN1 span wing employs a McWilliams RXM5-217 root airfoil, tapering to a NACA 64-212 tip airfoil. The wing has an area of 98square feet and mounts flaps. The standard engine used is the 7080NaN0 Walter M601D turboprop powerplant powering an American 821NaN1 three-bladed Hartzell Propeller or a Czech 841NaN1 Avia Propeller.[1] [2] [4] [6]