Falcon Heavy is the world`s most powerful rocket (by a factor of two) developed by SpaceX. With three Falcon 9 nine-engine cores it can lift more than twice the payload of the Delta IV Heavy vehicle. Here is a 3D model (OBJ/GLB files) of falcon heavy rocket attached for simulation study, 3D model by Giovane O. (https://3dwarehouse.sketchup.com/user/u195e819a-c68b-4ede-96bb-43994522bc38/Giovane-O)
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