THE EFFECT OF LONGITUDINAL DECELERATION ON THE LOADS AND MOTIONS OF A SEAPLANE LANDING IN WAVES,
Abstract
An experimental investigation was conducted to evaluate the effect of longitudinal deceleration on the loads and motions experienced by a seaplane landing in waves. A dynamic seaplane model was landed in six wave sizes of various heights and lengths with three values of reverse thrust, covering a range of longitudinal deceleration of from 0.2 to 0.7 g's. The maximum accelerations at the center of gravity and bow together with the maximum heaves and trims were recorded for each landing and analyzed statistically. It was found that increased longitudinal deceleration resulted in a reduction of the loads occurring later in the landing runout, while the loads resulting from the first and second contact were unaffected. The effect of reverse thrust on the magnitude of the loads and motion excursions that would be exceeded only once in a hundred landings was not great, due to the good landing characteristics of the high deadrise seaplane model tested. However a definite reduction in the magnitude of the bow loads and heaving motions was found with increased deceleration. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 01, 1963
- Accession Number
- AD0422872
Entities
People
- Gerard Fridsma
Organizations
- Stevens Institute of Technology