REFERENCES 
1. Technical Report R-527, "Windows for External or Internal Hydrostatic 
Pressure Vessels; Part II — Flat Acrylic Windows Under Short-Term Pressure 
Application," by J. D. Stachiw, G. M. Dunn, and K. 0. Gray, Naval Civil 
Engineering Laboratory, May 1967. 
2. Technical Report R-676, "Development of A Spherical Acrylic Plastic 
y 
Pressure Hull for Hydrospace Application," by J. D. Stachiw, Naval Civil 
Engineering Laboratory, April 1970. 
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