Dahlgren on Shrapnel, part 2: “these results are only to be considered as general terms”

As discussed earlier, while working on a system of boat howitzers to equip the US Navy, John Dahlgren conducted a detailed study of the behavior of shrapnel.  He identified three factors which governed the performance of shrapnel, from a target point of view, and thus would provide the requirements for the practice of fire forContinue reading “Dahlgren on Shrapnel, part 2: “these results are only to be considered as general terms””

May 4, 1865: “The rebel ram Stonewall” on the loose

On May 4, 1865, Rear-Admiral John Dahlgren forwarded a copy of orders, posted the previous day to the South Atlantic Blockading Squadron, to Major-General Quincy Gillmore.  The copy was in part a courtesy to the Army commander, to let him know of the Navy’s operational matters.  But at the same time was a warning thatContinue reading “May 4, 1865: “The rebel ram Stonewall” on the loose”

“The light-infantry drill will be best adapted to this service”: Dahlgren’s instructions for landing parties

Earlier this week, I mentioned the work of Navy landing parties in raids along the Georgia coast 150 years ago.  In the same time line, 150 years ago, Rear-Admiral John Dahlgren saw the need to formalize the equipment, organization, and drill of the sailors involved with these landing parties.  On August 8, 1864 he sentContinue reading ““The light-infantry drill will be best adapted to this service”: Dahlgren’s instructions for landing parties”