Harald Sydness The HC.2 Dragonfly kit appears to be a second rendition/evolution of the original Sikorsky kit, with a somewhat easier rotor head build up, with more plastic and less PE parts. Although it will still be a fairly complicated piece that will need some fine thought before and duing assembly. The Canopy/Windshield has been made more complicated, unknown if that enhances it. the kit also contain wooden blades, making it the ultimate bridge-kit. My reason for purchasing this exact model was to make a Canadian R-5, and it does carry the 2 bladed tail rotor that the early R-5 did have, BUT it only has 2 separate rear crew seats not the bench seat. and curiously only 1 set of belts for the rear seat. I'm also unsure if Shoulder Harness was standard, but I will include them in mine. this is a great little kit, and I can't wait to throw mine together. Will be using the Belcher Bits decals for mine.