About this 3D model

Currently one of the most advanced stealth bombers in the world, the Northrop Grumman B2 Spirit has been used by the US in its recent conflicts to evade enemy radar and destroy air defenses in advance of the main attacking forces. More info here:http://en.wikipedia.org/wiki/B2_SpiritNote this thing was developed from the model that can be found here (not produced by me):http://sketchup.google.com/3dwarehouse/details?mid=9b58b33d3953ecdc605b692dc0f7565&prevstart=0