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BATTERY CHAMBERLAIN



Was named in GO 194 December 27 1894, in honor of Capt. Lowell Chamberlain, First artillery, who had served in the Civil War and died in August 9 1899. 1st Sergeant, 2nd Independent battery Massachusetts light artillery July 5 1861. Discharged December 11 1861. 2nd Lieutenant 1st Maryland light artillery, December 16 1861. 1st Lieutenant January 21 1863. Mustered out July 3 1865. 1st Lieutenant 5th U.S. Volunteer, July 31 1965. Mustered out July 20 1866. 2nd Lieutenant 1st artillery May 11 1866, 1st Lieutenant August 28 1867. Resigned November 17 1873. Reinstated March 23 1875 (joint resolution March 3 1875) Captain November 25 1886. Born in Massachusetts. Appointed from Massachusetts.


 ORDNANCE



This battery was armed with 4-- 6-inch rapid fire guns Model 1903 NOS 26,27,28, and 52 manufactured by Watervliet Arsenal, and were shipped to this battery 11/14/05, they were dismounted in 9/15/17, and then were shipped back to Fort Monroe 1/28/18 (presumably for use in WW1 in France) then this battery sat empty of guns and carriages for nearly 3 years until 1920 (form 7 shows DEC 1918). After 1919 the carriages were scrapped, the guns went into storage at Aberdeen, but in WW 11, three of them (#28,29, and 52) were had some modification included changes to the rifling.

In 1920 two Model 1900 # 21, was shipped to Slocum, then 11/9/05 to Taylor, it's home battery was DeKalb, 2nd place was Scott. In the 1928 & 1944 inventory was emplaced at Battery Chamberlain. # 31 from Fort Taylor Battery DeKalb, were mounted in Emplacements #2 and #3 that had been modified to receive the two 6-inch guns that were remounted in Battery Chamberlain. The 1928 and 1944 inventory they were at Fort Scott, and they were manufactured by the Watervliet Arsenal. Number Built :45. This battery saw service (4 guns) 1904-1917 and (2 guns) 1920-1948. In 1976 the National Park Service mounted a Model 1905 #9--6-inch gun in emplacement # 4. Today this is one of the few guns of this era, that can still be seen, the rest were cut up for the war and scrap after the war, very few were left.


AMMUNITION SERVICE



As to ammunition storage and service, this battery, had a Shell Room and a Powder Room. The movement of ammunition must be very rapid and it is the duty of the Engineer Department to so design it emplacement that each and every step of the ammunition service may be performed with such speed that the ammunition can be carried to the breech of the gun at least as rapidly as it can be loaded into the gun and fired; and so the rate of fire which can be obtained from the gun be limited by consideration other that the functioning of the portion of the ammunition service for which the Engineer Department is responsible.

The means, which must be provided for moving ammunition, depend of course upon the weight and bulk of the piece to be moved. The projectile are stored in rows along the wall of the shell room, with there point to the wall so the bases could be gotten at for placing fuses, the bottom layer of shells where placed in pairs and put on timber skids, and then stacked using the same method., there were trolley rails in this battery, so it was fastened to the ceilings over the center of gravity of the shells in each row, after 1908 this was changed, and the larger shells were stacked in two rows down the middle of the shell room, there fore there was a passageway between the walls and between the rows.

As far as Powder Service, the powder was shipped to the battery in metal cases and stored in racks, that they were shipped in, in most cases, there ends projecting into the passageway. When a cartridge was desired the solder strip was to be pulled of without moving the cartridge case from the rack, this loosens the top of the case and the cartridge is then pulled out, leaving the case still fastened in it proper place. The ammunition supply for this battery was stored in the shell room which was 12 x 38 (there were 2 of them) and held 304 in each room, The size of the powder magazine was 14' 3" x 36 and held 118. The battle allowance for this battery was 600, and it's war reserve was 600 both stored at the battery, and 200 H.E, were at the Central Reserve, Larger amounts could be put in the shell and power rooms, by stacking higher.


CONSTRUCTION


As with any battery is to be built in any Engineer district, as much information as may be necessary is sent to the district officer. The first step is to grade and clear the site, so that the excavation may be started. Construction started on this battery in June 1902; at the completion of the excavation, they had removed over 56,000 cu. yds. of dirt and sand, Construction was suspended, until new plans for the battery were approved.

The plans were eventually accepted, and the work on installing the forms was started, on the timber used in making the forms, in all cases dressed lumber will be used. As the forms were finished the iron and steel, in the form of I beams for reinforcing ceilings, and in columns for supporting ceilings, for reinforcing concrete, they used deformed steel. There was over 12,352 lb. of reinforcement used in this battery.

As the gun blocks were being poured, the foundation, were started, there was poured over 11,000 cu. yds. of concrete as well as 18,650 cu. yds. of finished concrete.

This battery was 350' across the front of the battery, 30 ' deep and 125' between the guns., beside the Shot and Power Rooms, it also had a Spare Room 18' X 28'-6", a Plotting Room 13' X 18' which were located between emplacement # 2 and # 3 of this two story battery, an Oil Room, 10, X 20-6" and a Guard Room 10' X 20"-6", and two Store Rooms 10' X 8'. these room were between emplacement #1 and # 2 also on the other end of the battery was and Oil and Tool Room10' X 20'-6" and a power room 10' X 20'-6" and the Generator Room that was 10' X 20'-6", with a Latrine for Officers and Enlisted 25' behind Emplacement # 1, also there was a B.C. over the top of the rooms between emplacement #1 and 2 and Emplacement #3 and 4' The last thing to do was to add sand on the front and flanks of the lower floor of batteries, the sand was filled in front of the concrete,(Horizontal protection, front of magazine, 15 feet of concrete, 45 feet of sand; equivalent to 30 feet of concrete. Horizontal protection front of gun, 15 feet of concrete, 40 feet of sand; equivalent to about 28 1/2 feet of concrete - Vertical cover over magazine, 10 feet of concrete) then when a shell was fired at the battery it has been found that a projectile entering a mass of sand appears to have a tendency to deflect upward and to leave the sand with out penetrating very far, there was over 19.000 cu. yds. of fill used.

The exception is the blast apron, which is made of concrete, and immediately in front of the gun, they had to be laid very carefully. When the structure was completed the district Engineer officer prepares the so called "transfer drawing" then the Engineer officer and the local Coast Artillery officer , make an inspection of the structure , and all was in order and the keys, were transferred to the Artillery commander.

This battery was transferred on December 27 1904 at a cost of $100,803.45, and by March 1 1904 Battery Chamberlain was reported to be ready for it guns to be mounted, which had not yet arrived.


 POWER


This battery was electrician around December of 1903, and it used 6.5 for Battery Chamberlain, B/11, F/5, F/6, F/7, P/5, Fiv/1, Biv/1, one 25 kw, set was to be installed in the engine room, the feeders and branch feeders, were centered at a cabinet panel in the emplacement plant switchboard. Prior to December of 1904 a few small electrical plants has been installed in some of the batteries at Fort Winfield Scott, but after analyzing the needs of the area, the board concluded that a central power station was needed for each of the Forts, but with the shortage of funds, it was decided to put the first one at Fort Winfield Scott.


 FIRE CONTROL


Traverse in Azimuth emplacement one, left was 36 and right was 190, emplacement # two-left was 36 and right was 190 ( this was after the four were taken out and the two were remounted).

The B.C.-B1 was a standard concrete station located on the left flank of the battery at an elevation of 54 feet. An azimuth instrument Model 1910 and a Swassey D.P.F., all type A11. were available. B2S2 was a single dug in station at Fort Point at an elevation of 134 ft. The length of the base line from BC B1 to B2S2 was 5400 yards. Spotting was provided for stations BC-B1 and B2S2. The plotting room was in the battery itself, and was equipped with a Model 1904 Whistler-Hearn plotting boards. However, a 110 o Model 1915 plotting board was required, and Point Bonita at an elevation of 233 feet was a single dug in.


MISCELLANEOUS


In a letter dated Jul 6 1908, from Major Charles McKinstry, stated that a road was to be built, from Lobos Creek supply road with a road branching into this battery, in front of the battery on the beach 60 ft from the front of the battery, thence through the sand dunes in the rear of range finding station to the pumping.


ABANDONMENT



Declared surplus by secret letter HG AGF 602-1/109 (C) May 23 1947 GNGOS-1A May 23 1948 Subject: Harbor Defense Installations to of Z1 Armies. Dismantling and removal of guns directed by 2nd Ind Hg Sixth Army September 2 1948 to Ltr Ch of Ord May 28 1948. Subject: "Ordnance equipment excess to the needs of the H.D.S.F. to CG AGF. These two weapons remained in service until after WW 11.(Harbor Defense Project (HDSF-AN-45) calls for retention of this battery). Today this battery is in excellent condition. The Park Ranger, in period uniforms at the 6-inch gun once a month, gives demonstrations in a gun drill. This battery is historically significant because, it was the only coastal battery in the Presidio to survived in post World War 11 days and emplacement no 4 today contains the only Endicott period gun presently at San Francisco Bay.



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