Intense acoustic noise and vibration are unavoidable and undesirable by-products generated from the launching of a spacecraft. The generated noise during the firing of a rockets engine transfers into the vehicle, avionics, and launch pad in the form of airborne acoustics. Therefore, a successful mission requires detailed consideration of complex sound and vibration interaction of vibro-acoustics effects.The noise and vibration caused by spacecraft rocket engines on launch pads is extremely intense (approximately 180dB). The noise at launch during the two-minute liftoff and transonic climb phase causes hostile, noisy and vibratory environment not only for the spacecraft itself but also for the delicate electronics and payload packages aboard.Acoustic blankets can effectively suppress these intense noise levels. This is done using open cell foam or batting of various thicknesses. The foam is enclosed in a cover that can be made of a variety of materials, including Teflon carbon coated fiberglass or aluminized plastic film. In order to relieve pressure created by changing altitude, breathing patches made from a metallic mesh must be installed. The size and shape of these patches can be different depend on design of the blanket. The fabrication of acoustic blanket in general and specific issues on methods of fabrication is what we would like to discuss in this paper along with the latest techniques of how to prevent issues associated with acoustic blankets.
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