WIND TUNNELS   Wind tunnels in any size Subsonic & supersonic Eiffel and closed-circuit Aerodynamic characteristics to suit your application   AERODYNAMIC PERFORMANCE TO MEET ALL TEST REQUIREMENTS D2T manufactures all types of subsonic and supersonic wind tunnels for use in industry and education. D2T wind tunnels are used in many fields including the automobile, aerospace, building and environmental protection industries. D2T designs and builds wind tunnels to meet all size and performance specifications.