Water-Pressure Distributions During Landings of a Prismatic Model Having an Angle of Dead Rise of 22 1 deg./2 and Beam-Loading Coefficients of 0.48 and 0.97
Abstract
Smooth-water landing tests of a prismatic model having an angle of dead rise of 22 1/2 deg were made as part of a landing investigation being conducted at the Langley impact basin to determine the distribution of water pressure on seaplanes. Landings were made for beam-loading coefficients of 0.48 and 0.97 at fixed trims between 0.2 deg and 30.3 deg for a range of initial flight-path angles from 4.6 deg to 25.9 deg and also for 90 deg. Initial impact conditions, over-all loads and motions, and maximum pressures are presented in tables and figures for all the landings, together with instantaneous-pressure-distribution and wave-rise data. The experimental wave rise, peak pressures, and pressure distributions are found to be in fair agreement with the predictions of the available theory; however, better agreement is obtained by modification of the theory.
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 01, 1952
- Accession Number
- ADA376970
Entities
People
- Robert F. Smiley
Organizations
- National Aeronautics and Space Administration