Abstract

Towed cables behind re-entry vehicles have been found to break progressively from the trailing end during early re-entry. An analysis of expected vibrational stresses due to periodic perturbations has been made, and this analysis has been used to estimate the variation of residual cable length with range through the atmosphere. Predictions of length variation are compared to measured values in the Naval Ordnance Laboratory 1000-ft Hypersonic Range and compare reasonably. The relative influence on cable stress and residual length are given for the various parameters of the cable and the towing body, and various methods are suggested for maximizing the length of cable to a prescribed altitude.

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