The basic model is the Warbirds Spitfire mkIX but I have made a number of enhancements. I disposed of the vacuum formed radiator housings, wheel housings and wing blisters replacing these with ones I manufactured from balsa. I also created my own exhaust stubs from brass tube (the model is supposed to need some additional nose weight, so I might as well use the weight to good effect rather than just adding dead weight in the form of lead) in preference to the vacuum formed ones provided. The covering of the model used the recommended method of brown paper stuck on using PVA adhesive and then painted in clear dope prior to painting. I have never used this method before but it seems to be effective. The model is intended to be (and is ) equipped with a 52 four stroke.