National Transonic Facility Image Gallery5.2% 777 semi-span model mounted in the National Transonic Facility (NTF), building 1236. NASA Identifier: L2000-4130.01 scale model of the Space Shuttle in the National Transonic Facility.Navy submarine undergoing tests in the National Transonic Facility.5.2% 777 semi-span model in the National Transonic Facility at Langley.Liquid nitrogen injection nozzles with Dennis Fuller.Space shuttle model in the National Transonic Facility. L85-2794 Susan Williams with model.This 65-degree delta wing model test is part of an experimental and computational effort aimed at isolating the effects of...National Transonic Facility Shut-Down Reinstallation.Loading model into test section.NASA Pathfinder II model mounted on the Free To Roll rig at the NTF.