OpteryX Engineering OpteryX MXIII
Single-seat single-engined high-wing monoplane: no tall, canard wing. Pitch control by fully flying canard; yaw control by tip rudders. Wing braced from above by kingpost and cables, from below by cables. Undercarriage has three wheels in tricycle formation; bungee suspension on nosewheel and glass-fibre suspension on main wheels. Nosewheel steering. Optional brakes. Aluminium-tube framework, without pod. Engine mounted below wing driving pusher propeller.
This machine was shown in prototype form in 1982 but since that time very little has been heard of its maker's activities.
Engine: Cuyuna 430, 30 hp
Propeller diameter and pitch 52 x 27 inch, 1.32 x 0.69 m
Belt reduction, ratio 2.0/1
Nosewheel diameter overall 20 inch, 51 cm
Main wheels diameter overall 20 inch, 51 cm