PROGRESS REPT. 1 JULY-30 SEPTEMBER 1953 (HARBOR PROTECTION PROJECT) ON CONTRACT NO. NONR-609(02) (YALE UNIV)
Abstract
Mine-spotting tests with the temporary X-band radar showed that mine splashes are easily detected and that low-flying planes and falling mines are trackable in some cases. Sound-ranging tests showed that the low-frequency component of long duration, which always follows a mine splash, is also observed when the mine is dropped from rest while wholly submerged. Progress is reported on the medium-range and short-range location of planted mines. Tests of Raydist equipment indicated that much lighter gear (perhaps a set designed for helicopters) would be more suitable for small boat work. Laboratory tests on inducing vortex flow (by towing suitably shaped baffles) indicated the feasibility of this method as a means of pressure mine sweeping. The special television chain for the underwater identification of mines operated satisfactorily. (See also AD-14400, Secret) UNITERMS: Harbors, Protection, Defense, Systems, Radar, Mines, Spotting, Photographic, Visual, Sonar, Countermeasures, Vessels, Navigation, Minesweepers, Pressure, Sweeping, Location.
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 01, 1953
- Accession Number
- AD0022747
Entities
Organizations
- Yale University