FIELD: automotive industry. SUBSTANCE: trailer-train fairing is arranged in upper part of truck cab of aerodynamic outline and is designed for improving operating parameters of vehicle. Shape of trailer-train fairing provides uniform distribution of air stream in upper part of cab and above cab and at sides of vehicle, which is obtained owing to use of almost flat platforms arranged in front part of cab and at corners at sides which smoothly and gradually change into convex aerodynamic surface. EFFECT: enhanced aerodynamic characteristics of vehicle. 3 dwg
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