The J-RO was designed to combine the advantages of an ultralight trike with an autogyro. As such it is a "Cabriolet" (convertible) design whereby the gull-winged doors are removable to allow open air flight in the summertime and an enclosed cockpit for cooler weather. The doors are a factory option and may be purchased and installed later.[1]
The design features a single main rotor, a two-seats-in tandem configuration enclosed or open cockpit with a windshield, tricycle landing gear with wheel pants and a four-cylinder, liquid and air-cooled, four stroke 1000NaN0 Rotax 912ULS or turbocharged 1150NaN0 Rotax 914 engine in pusher configuration. It has a Kevlar belt-driven pre-rotator for the main rotor.[1] [2]
The aircraft fuselage is made from carbon fiber reinforced polymer. Its two-bladed rotor has a diameter of 8.61NaN1 and a chord of 21.31NaN1. The aircraft has a typical empty weight of 2820NaN0 and a gross weight of 5600NaN0, giving a useful load of 2780NaN0. With full fuel of the payload for the pilot, passenger and baggage is 2290NaN0.[1]
In noise testing for acceptance in Switzerland the design produced 62.4 dB. The Swiss testing requires the design produce no more than a maximum of 65 dB for this class of aircraft.[2]