The C-5 Galaxy is a Lockheed-produced strategic airlift cargo aircraft in use by the United States Air Force since 1968.
These 3D printed card kits are meant to be easily assembled and used as Christmas ornaments, desk displays, gifts, etc. You will need superglue to hold the parts together. Since the kits are made of PLA plastic, model airplane cement will not work.
The plastic is sensitive to high heat, so leaving it in direct sunlight in a parked car will lead to warping.