46 



(18) "Balsa Wood Life Floats: Test of Alternate Methods of Cover- 

 ing," ITL Report 1220-C, 21 May 1943. 



(19) "Floater Net Floats Treated With Eclut," ITL Report 1580, 29 

 November 19^3. 



(20) "Neoprene Cement Coating for Balsa Wood Life Floats," ITL 

 Report 1216-B, 25 October 1943. 



APPENDIX 1 

 TESTS OP THE NAVAL MINE WARFARE TEST STATION FLOAT 



DESCRIPTION OP THE NMWTS FLOAT 



The NMWTS float, Figure 36, was evidently designed originally as a 

 static marker buoy without thought to its subsequent application as a towed 

 float. It appears, therefore, that its use for towing was suggested on the 

 basis of simplicity of construction and ease of handling. The model submit- 

 ted for test was of hollow sheet-metal construction and weighed approximately 

 27 pounds with a total buoyancy of 130 pounds in sea water. The float hull 

 has no auxiliary surfaces for either lift or stabilization. 



It was requested that tests be made with two methods of towing. The 

 first was to tow from a point on the hull 4 inches forward of the center 



2-^ -pound Plate "•'^ — 3-11- 



Sfiffeners * — Towing Shackle 



Figure 36 - Float for Catenary Sweep Submitted for Test by 

 Naval Mine Warfare Test Station 



