Revell 1144 u boat xxi type interior detail model kit set 05078 overall length 531cm skill level 4 separate left outer hull wall giving a view into the interior detailed surface structures detailed torpedo compartment crew living quarters detailed control room canning tower with internal structures detailed diesel engines and electric motors batteryaccumulator compartments movable diving planes and hydroplanes rotating twin aa gun turrets detailed fin superstructure with antennae periscop