The Kallithea is a development of the 2009 Niki Lightning, differing mainly in its use of a conventional two-tube tail boom that passes under the pusher propeller instead of mounting the tail boom through the propeller hub.
The Kallithea features a single main rotor, a two-seats-in tandem enclosed cockpit with fold-up doors, tricycle landing gear and a four-cylinder, liquid and air-cooled, four stroke 1000NaN0 Rotax 912 or six-cylinder, liquid cooled side-valve four-stroke flat six 4-litre petrol 1200NaN0 D-Motor LF39 aircraft engine in pusher configuration. The doors can also be removed for flight.[1]
The aircraft fuselage is a monocoque structure made from composites and fibreglass. Its two-bladed Vortech or Sport Copter rotor has a diameter of 8.51NaN1 and a chord of 211NaN1. The aircraft has a typical empty weight of 2500NaN0 and a gross weight of 4500NaN0, giving a useful load of 2000NaN0. With full fuel of the payload for the pilot, passenger and baggage is 1430NaN0.[1]