Abstract: The present invention relates to a method for eliminating surface irregulties on the wraparound window of a torpedo nose array. The method broadly comprises the steps of preheating an oven to a temperature in the range of from about room temperature to about 160.degree. F., placing the nose array with the surface irregularities in the preheated oven, applying a vacuum at a pressure of up to about 10 mm of mercury, and maintaining the object in the oven under the conditions of temperature and pressure for a time sufficient to cause polymerization at the surface of the object and removal of gas bubbles, waves and blisters from the surface of the nose array. The method further comprises introducing an anhydrous gas such as nitrogen into the oven during the vacuum applying step.

Abstract: A self-propelled torpedo with four stabilizer fins having an "X" orientat when the torpedo is running submerged through water. Each stabilizer fin has a fixed leading section and a trailing rudder section with a rigid trailing edge. Bands of tape are wrapped fore and aft around each rudder section to provide opposed trailing extensions of tape which are adhered together and slitted to form a trailing extension of flexible material with separate strips along the full length of the rigid trailing edge. The trailing extension of flexible material provides for shedding trailing edge vortexes downstream for reducing the transmission of vortex energy upstream to the rudder.