Experimental Carriages

Experimental Carriages (HM13B)

Location: Baltimore, MD 23503
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Country: United States of America
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N 39° 15.783', W 76° 34.748'

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Funds for developing new weapons decreased after the Civil War, forcing the Army to upgrade the cannon they already had.

These three 19-inch Rodman gun tubes were probably made during the 1870's, but their carriages are improved versions developed about 1888. A large hydraulic cylinder returned the gun to its forward position after firing and recoil. Another innovation was the use of bumpers made of a material relatively new to gunnery—rubber.

The automatic return feature eliminated the time consuming step of cranking the gun back into firing position by hand.
HM NumberHM13B
Series This marker is part of the Maryland: Fort McHenry series
Marker ConditionNo reports yet
Date Added Wednesday, October 8th, 2014 at 10:42pm PDT -07:00
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Locationbig map
UTM (WGS84 Datum)18S E 363764 N 4347156
Decimal Degrees39.26305000, -76.57913333
Degrees and Decimal MinutesN 39° 15.783', W 76° 34.748'
Degrees, Minutes and Seconds39° 15' 46.98" N, 76° 34' 44.88" W
Driving DirectionsGoogle Maps
Area Code(s)757
Closest Postal AddressAt or near 276 I-95, Baltimore MD 23503, US
Alternative Maps Google Maps, MapQuest, Bing Maps, Yahoo Maps, MSR Maps, OpenCycleMap, MyTopo Maps, OpenStreetMap

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