Beach Erosion Board is carrying out certain projects with its own 
facilities. The main unclassified projects have been described in pre- 
vious numbers of the Bulletin, and a short description of some of the 
work accomplished through the last quarter is given below. 
Project ESMOND - A final report was prepared and sbheduled for 
publication in the summer of 1954. A search is being made for reports 
of prior work (prototype or model) on the maneuvering of ships through 
fluids having densities (and viscosities) different from water, and 
information supplied bearing on this project would be appreciated. A 
short field test was made by the Philadelphia District.m the maneuverability 
of an oil tanker in the Delaware River, and particularly in travelling 
over and through mud shoal areas. 
Study of Reforming of Waves After Breaking - A wave tank study has 
been initiated to define the conditions under which waves will reform 
after breaking, and the relationship between the energy transmitted forward 
by the initial unbroken wave and that of the reformed wave. 
Instrument Development - A sinusoidal dynamic calibrator is being 
made to enable determination of the time effects of moving water (as 
meniscus) on wave gage calibration, particularly for waves of very low 
amplitude. 
Routine progress, testing. and analysis,has been made on the other 
projects being carried out by the Research Division. In addition, a 
small project was carried out for the Fish and Wildlife Service and the 
Geological Survey involving the testing and development of small 
dampeners which could be placed on a sand flat or beach and allow tidal 
circulation but break up the oscillatory wave currents which mold the 
bottom into a ripple pattern and constantly stir the top layer of sand; 
these dampeners would provide a shelter where seed clams could get an 
anchor without being distarbed by the moving sand. Several types were 
developed that were deemed worthy of further study, and prototype field 
trials of these were~recommended. 
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