Current testing requirements for high temperature alloys are defined in general industry specifications (ASTM, AMS), as well as in user specifications. Many of these requirements were established in the 1960's when production practices were yet to be refined.
cowling - protective covering consisting of a metal part that covers the engine; there are powerful engines under the hoods of new cars; the mechanic removed the cowling in order to repair the plane's engine.
Answer Wiki. , Mechanical Engineer. In simple words, V6 means six cylinder engine in which the cylinders are arranged in V shape over crankcase( the angle between the cylinders can be 60Â° or 90Â° ). While the term '3L' denotes the 'volume of charge ' that the engine holds in running condition.