Brooke rifle

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A 7-inch (178 mm) single-banded Brooke rifle captured aboard CSS Atlanta 7-inchBrooke1Bgun.jpg
A 7-inch (178 mm) single-banded Brooke rifle captured aboard CSS Atlanta

The Brooke rifle was a type of rifled, muzzle-loading naval and coast defense gun designed by John Mercer Brooke, [1] an officer in the Confederate States Navy. They were produced by plants in Richmond, Virginia, and Selma, Alabama, between 1861 and 1865 during the American Civil War. They served afloat on Confederate ships and ashore in coast defense batteries manned by the Confederate States Army.

Contents

Design and production

Brookes can be identified by the presence of at least one band of wrought iron at the breech and a rough-finished, tapering barrel. The barrels were made of cast iron for ease of manufacture, but one or more wrought iron bands was welded around the chamber to reinforce it against the high chamber pressure exerted when the gun fired. Because no southern foundries had the capacity to wrap the rifles in a single band like the Parrott design, a series of smaller bands were used, each usually 2 inches (51 mm) thick and 6 inches (152 mm) wide. All of Brooke's rifles used the same seven-groove rifling with a right-hand twist. [2] Most of Brooke's guns had a Gomer-style powder chamber, shaped like a truncated cone with a hemispherical tip, but the 6.4-inch rifles had a simple hemispherical powder chamber. [3]

These weapons were manufactured at the Tredegar Iron Works (sometimes referred to as J.R. Anderson & Co, after owner Joseph Reid Anderson) in Richmond, Virginia, and at Selma Naval Ordnance Works in Selma, Alabama. [3]

Markings

Guns manufactured at Selma bear the foundry imprint "S", those from Tredegar "TF". "R.N.O.W" may be found on some guns as they were bored and rifled by the Richmond Naval Ordnance Works in Richmond, Virginia after a fire in May 1863 temporarily crippled Tredegar's boring shop. [4]

Types

6.4-inch Rifle

Brooke reported fourteen single-banded 6.4 in (163 mm) rifles were completed by 8 January 1863, although Tredegar records list only eleven as some were double-banded before being shipped. Three were cast in 1861 with the remainder in 1862. Two of the earliest were mounted on the broadside of the ironclad CSS Virginia. Two were mounted fore and aft on pivot carriages aboard the ironclad gunboat CSS Neuse. Two others were mounted on the broadside of the ironclad CSS Atlanta and survive today in Willard Park of the Washington Navy Yard. [5]

Double-banded rifles were produced from 28 October 1862 by direction of Stephen Mallory, Confederate Secretary of the Navy. [4] Twenty-four were cast by Tredegar between 1862 and 1864 while Selma cast twenty-seven, but only fifteen were shipped due to casting problems. [6] Five of the damaged gun blocks were rebored as 8-inch (203 mm) double-banded smoothbores. [7] Nine survivors exist, including four from USS Tennessee (F.K.A. CSS Tennessee II),and one from CSS Albemarle. [8]

7-inch Rifle

Drawing of a single-banded Brooke for the CSS Texas NH 76389 Brooke Single-Banded Rifled Gun.jpg
Drawing of a single-banded Brooke for the CSS Texas

The first seven single-banded 7-inch (178 mm) were bored and rifled from 9-inch (229 mm) Dahlgren gun blocks between July and December 1861. Two of these were the front and rear pivot guns of the CSS Virginia. [4] Tredegar made another nineteen to the Brooke pattern between 1862 and 1863 of which three survive. Two of these are found at the Washington Navy Yard as trophies from CSS Atlanta. [9]

Selma cast fifty-four double-banded rifles in 1863 and 1864, but only shipped thirty-nine due to casting flaws. Tredegar cast thirty-six between 1863 and 1865. Eight survive, two from USS Tennessee (F.K.A. CSS Tennessee II), one in the Washington Navy Yard and the other in Selma. [10] Another, number S89, may be found at Fort Morgan State Historic Park. [1] On September 29, 2015, an archeological team from the University of South Carolina recovered a 7-inch double-banded gun from the CSS Pedee. [11]

Three triple-banded rifles were cast by Tredegar in 1862. These were 15 inches (380 mm) longer than the other 7-inch rifles and were unique among Brooke guns in that they lacked cast trunnions. Instead a separate trunnion strap was fitted around the breech. One was mounted on the CSS Richmond and another was sent to the harbor defenses of Charleston, South Carolina where it remains as a trophy in Ft. Moultrie. [12]

8-inch Rifle

A 8-inch (203 mm) double-banded Brooke rifle BrookeRifle.jpg
A 8-inch (203 mm) double-banded Brooke rifle

Tredegar cast four double-banded 8 in (203 mm) rifles in April and May 1864. One was mounted in CSS Virginia II while another was sent to the batteries defending the James River. It was present, but lacked shells during the fighting at Dutch Gap Canal on 13 August and 22 October 1864. Shells were delivered on 27 October and 2 November 1864. No known survivors. [13]

Brooke smoothbores

Brooke designed a series of smoothbores that were produced in small numbers by the Selma and Tredegar foundries. Selma re-bored five flawed 6.4-inch blanks as 8-inch double-banded guns, one of which survives in Selma, Alabama. [14] Brooke's 1863 report to Secretary Mallory shows a plate of an unbanded 8-inch smoothbore, but nothing further is known of it. [15] Similar attempts to bore out flawed 7-inch gun blocks to 9-inch (229 mm) smoothbores were unsuccessful. [16] Seven 10-inch (254 mm) double-banded guns were cast by Selma and four by Tredegar in 1864. Two survive, one of which is a trophy from CSS Columbia in the Washington Navy Yard. [17] Selma cast twelve 11-inch double-banded smoothbores in 1864, although only eight were shipped. One survives in Columbus, Georgia. In 1863 and 1864 two 11-inch triple-banded guns were cast by Tredegar, but none are known to survive. [18]

Ammunition

Brooke's rifles fired both armor-piercing and explosive shells of his own design. The former were solid cylindrical projectiles with a blunt or flat nose to reduce the chance of a ricochet, and were often referred in contemporary accounts as "bolts". The latter were hollow cylinders with rounded or pointed noses. They were filled with black powder with a fuse set to detonate a variable amount of time after being fired. His smoothbores used spherical solid shot for armored targets and hollow spherical explosive shells against unarmored targets. [19]

Specifications

Gun typeWeight (approximate)Overall length Caliber
6.4-inch single-banded rifle9,100 lb (4,100 kg)141.85 in (360.3 cm)18.5
6.4-inch double-banded rifle10,600 lb (4,800 kg)141.85 in (360.3 cm)18.5
7-inch single-banded rifle15,000 lb (6,800 kg)146.05 in (371.0 cm)17.1
7-inch double-banded rifle15,000 lb (6,800 kg)146.15 in (371.2 cm)17.3
7-inch triple-banded rifle20,827 lb (9,447 kg)151.2 in (384 cm)19.4
8-inch double-banded rifle21,750 lb (9,870 kg)158.5 in (403 cm)16.2
8-inch double-banded smoothbore*10,370 lb (4,700 kg)141.85 in (360.3 cm)14.8
10-inch smoothbore21,300 lb (9,700 kg)158.25 in (402.0 cm)13
11-inch smoothbore23,600 lb (10,700 kg)170.75 in (433.7 cm)13

See also

Contemporary rifled artillery

Notes

  1. 1 2 "6.4" (100 pounder) Parrott Rifle / 7" Brooke Rifle". Historical Marker Database. Retrieved 24 September 2015.
  2. Olmstead, et al., p. 125
  3. 1 2 Olmstead, et al., pp. 127-130
  4. 1 2 3 Olmstead, et al., p. 126
  5. Olmstead, et al., pp. 125-6, 218
  6. Olmstead, et al., pp. 131, 218-9
  7. Olmstead, et al., p. 131
  8. Olmstead, et al., p. 219
  9. Olmstead, et al., p. 224
  10. Olmstead, et al., pp. 225–226
  11. http://www.artsandsciences.sc.edu/sciaa/mrd/node/463
  12. Olmstead, et al., p. 226
  13. Olmstead, et al., pp. 128-9
  14. Olmstead, et al., p. 232
  15. Olmstead, et al., p. 127
  16. Olmstead, et al., p. 128
  17. Olmstead, et al., p. 251
  18. Olmstead, et al., p. 259
  19. "Civil War Artillery Projectiles" . Retrieved 25 April 2009.
  20. Olmstead, et al., pp. 127-130, 232

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M1841 12-pounder howitzer Type of Howitzer

The M1841 12-pounder howitzer was a bronze smoothbore muzzle-loading artillery piece that was adopted by the United States Army in 1841 and employed from the Mexican–American War to the American Civil War. It fired a 8.9 lb (4.0 kg) shell up to a distance of 1,072 yd (980 m) at 5° elevation. It could also fire canister shot and spherical case shot. The howitzer proved effective when employed by light artillery units during the Mexican–American War. The howitzer was used throughout the American Civil War, but it was outclassed by the 12-pounder Napoleon which combined the functions of both field gun and howitzer. In the US Army, the 12-pounder howitzers were replaced as soon as more modern weapons became available. Though none were manufactured after 1862, the weapon was not officially discarded by the US Army until 1868. The Confederate States of America also manufactured and employed the howitzer during the American Civil War. The Confederate armies used the outmoded howitzer for a longer period.

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The 10-pounder Parrott rifle, Model 1861 was a cast iron muzzle-loading rifled cannon that was adopted by the United States Army in 1861 and often used in field artillery units during the American Civil War. Like other Parrott rifles, the gun breech was reinforced by a distinctive wrought iron reinforcing band. The gun fired a 9.5 lb (4.3 kg) projectile to a distance of 1,850 yd (1,692 m) at an elevation of 5°. The 10-pounder Parrott rifle was capable of firing shell, shrapnel shell, canister shot, or solid shot. Midway through the war, the Federal government discontinued the 2.9 in (74 mm) version in favor of a 3.0 in (76 mm) version. Despite the reinforcing band, the guns occasionally burst without warning, inflicting injury on the gun crews. The Confederate States of America manufactured a number of successful copies of the gun.

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The 14-pounder James rifle or James rifled 6-pounder or 3.8-inch James rifle was a bronze muzzle-loading rifled cannon that was employed by the United States Army and the Confederate States Army during the American Civil War. It fired a 14 lb (6.4 kg) solid shot up to a distance of 1,530 yd (1,400 m) at 5° elevation. It could also fire canister shot and common shell. Shortly before the war broke out, the U.S. Army adopted a plan to convert M1841 6-pounder field guns from smoothbore to rifled artillery. Rifling the existing 6-pounders would both improve the gun's accuracy and increase the weight of the shell. There were two major types produced, both were bronze with a bore (caliber) of 3.8 in (97 mm) that would accommodate ammunition designed by Charles Tillinghast James. The first type looked exactly like an M1841 6-pounder field gun. The second type had a longer tube with a smooth exterior profile similar to a 3-inch Ordnance rifle. At first the rifles were quite accurate. However, it was discovered that the bronze rifling quickly wore out and accuracy declined. None of the rifles were manufactured after 1862, and many were withdrawn from service, though some artillery units employed the guns until the end of the war.

References