The Composite Helicopters International KC 518 Adventourer is a composite fuselage, 5-6 place turbine kit helicopter. The KC 518 is a composite fuselage helicopter kit for amateur construction. The airframe uses a carbon fiber and kevlar composite fuselage with a shrouded tail rotor. An auxiliary fuel system can be installed. Variants Other versions with the same fuselage are KC630 with Rolls-Royce RR300 engine in 2017 (priced at US$970,000), KC640 with the RR250 in 2018, and KC650 with the Honeywell LTS101, expected to be certified by 2019. The rights to the KC630 were acquired by Innova Helicopters in 2017.