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They were the USS Pawnee, commanded by George Balch and with the firepower of eight IX-inch Dahlgren guns, one 100-lb Parrot Rifle, one 50-lb Dahlgren Rifle, and two 12-lb boat howitzers. The other boat was the USS C. P. Williams , a mortar schooner that mounted a couple 8-inch mortars and was under the command of Acting Master S. N. Freeman.
The outlet works consist of an intake structure and an outlet tunnel. The 262-foot (80 m)-high intake structure is located north of the dam, and contains 8-by-4-foot (2.4 by 1.2 m) gates which control the amount of water released into Russell Fork River. [2]
Monitor ' s guns were used with the standard service charge of only 15 lb (6.8 kg) of powder, which did not give the projectile sufficient momentum to penetrate her opponent's armor. Tests conducted after the battle showed that the Dahlgren guns could be operated safely and efficiently with charges of as much as 30 lb (14 kg). [65]
When the Coast Guard floated a plan in 2016 to establish 10 new anchorages in the Hudson, some 10,000 public comments criticized the plan.
Trip lines are especially helpful in series drogues because of their difficult recovery. Although the trip line concept is a derivative of the parachute sea anchor, evidence demonstrates that such a setup is not effective with the storm drogue. [1] While similar in design, the sea anchor is quite different in application from a drogue. The sea ...
A boom blocking the River Foyle during the siege of Derry. A boom or a chain (also boom defence, harbour chain, river chain, chain boom, boom chain or variants) is an obstacle strung across a navigable stretch of water to control or block navigation. In modern times they usually have civil uses, such as to prevent access to a dangerous river ...