{'fraction_non_alphanumeric': 0.010101010101010102, 'fraction_numerical': 0.0, 'mean_word_length': 5.027027027027027, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
Investigations of the Safety of Flight of WIG craft

Abstract The paper presents motion simulations in time domain of a WIG craft with a Lippisch configuration under wind and wave perturbations. The aerodynamic characteristics were obtained using the vortex lattice method. The motion is considered in the longitudinal plane. A novel approach is proposed to generate artificial wind turbulence with prescribed kinetic energy and spectra. The wave surface is modeled by a plane performing linear and angular oscillations. Motion simulations were performed to show the limitations of flight safety analysis based on the classic stability theory. Simulation of the take-off motion was carried out to determine the conditions for safe transition from the skimming to flare mode. It was shown that the application of the flight control is necessary for safe flight in the proximity of the ground.