San Diego Naval Training Center
The three weapons are 3-inch 50 calibre duel purpose guns. Developed in the 1930s, the design was light weight for its time and used until automatic anti-aircraft weapons were perfected. This weapon was favored on smaller ships such as support vessels and anti-submarine escorts. It fired a fixed round which combined the thirteen pound shell and propellant in an attached casing like a bullet. It could fire a shell nearly seven miles at a muzzle velocity of 2,700 feet per second.| HM Number | HMZ46 |
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| Tags | |
| Placed By | Naval Training Center |
| Marker Condition | No reports yet |
| Date Added | Wednesday, October 15th, 2014 at 7:57am PDT -07:00 |
| UTM (WGS84 Datum) | 11S E 480137 N 3622143 |
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| Decimal Degrees | 32.73693333, -117.21200000 |
| Degrees and Decimal Minutes | N 32° 44.216', W 117° 12.72' |
| Degrees, Minutes and Seconds | 32° 44' 12.96" N, 117° 12' 43.20" W |
| Driving Directions | Google Maps |
| Area Code(s) | 619 |
| Closest Postal Address | At or near 2581-2669 Cushing Rd, San Diego CA 92106, US |
| Alternative Maps | Google Maps, MapQuest, Bing Maps, Yahoo Maps, MSR Maps, OpenCycleMap, MyTopo Maps, OpenStreetMap |
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