Vulcan Howl Explained#jetnoise #jetengine #aviation #military

A popular feature of Britain's most famous V-bomber, Avro Vulcan XH 5-5-8 during flypasts and air shows is the so-called "Vulcan Howl", a distinctive sound made by early Vulcan airframes.

This unique characteristic has garnered significant attention from spectators at air shows.

The special howling noise only happens with the early 200 series airframes.

It starts when about 100 kilograms of air each second goes through her relatively small air intake.

The distinctive howl emanates from the high-velocity impact of air with plating located on the front-inner side of the air intakes.

When the engines operate at sufficiently high power settings, typically around 90% throttle, this interaction induces vibrations in the plating.

This phenomenon was exclusive to early 200 series airframes and subsequently rectified in later variants

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