PPRuNe Forums - View Single Post - Night Stalker MH-47 modifications

11th Aug 2020, 09:37

#5 (permalink)

sycamore

Join Date: Jun 2002

Location: east ESSEX

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They are actually Karman -Hardon bass speakers which `anti-phase` the WOKK-WOK of the blades,so it is essentially a `silent` aircraft,hence the name....

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