The parallel body length and wind receiving areas of a ship are used for calculating the ship berthing energy in fender design and for estimating the tractive forces of the moored ship by wind loads in mooring post design, respectively. Since these parameters are not generally disclosed as ship specification data, it is difficult to obtain the accurate values of them for a design ship. In this study, we performed the statistical analysis using the data collected through questionnaire surveys in terms of the above parameters. In the statistical analysis, we calculated the regression equations of the parameters for each kind of ships.
　The main conclusions of this study are as follows:
1) In terms of the parallel body lengths and wind receiving areas of ships, we performed the statistical analysis using the data collected through questionnaire surveys to shipowners, etc. We then presented the regression equations and basic statistics of these parameters for 8 kinds of ships in full load and ballast conditions.
2) The ratios of the parallel body length to the length between perpendiculars for ships are slightly larger than the 1/3 to 1/2 described in the current Japanese port technical standards and are generally in the range of 2/5 to 3/5.
3) The wind receiving areas of ships generally tend to be small in full load condition and conversely large in ballast condition. However, the lateral wind receiving areas of container ships show the opposite tendency due to the influence of the containers loaded on the deck.

Key Words: parallel body length, wind receiving area, statistical analysis, regression equation, fender,mooring post