Britisn nuke sub is super easy except the scopes they are all individual. While this gives the modeler options on which mast they want up usually it best just to have them all up and in 1 piece. In this case I chose to have mast down. the hull is very detailed and has the covered impeller style screw. The kit has 7 main parts not counting the mast and stand which already has the ships name on it. You will have to paint and decal the ship. The decals go on well so no real worries there.