USS Aylwin circa 1916-17
|Builders:||William Cramp & Sons, Philadelphia|
|Operators:||United States Navy|
|Preceded by:||Cassin class|
|Succeeded by:||O'Brien class|
|Length:||305 ft 3 in (93.04 m)|
|Beam:||30 ft 4 in (9.25 m)|
|Draft:||9 ft 5 in (2.87 m)|
|Propulsion:||2 × shafts|
|Speed:||29.6 kn (54.8 km/h; 34.1 mph) (trials)|
|Capacity:||307 tons oil (fuel)|
The Aylwin class was a class of four destroyers in the United States Navy; all served as convoy escorts during World War I. The Aylwins were the second of six "second-generation" 1000-ton four-stack destroyer classes that were front-line ships of the Navy until the 1920s. They were known as "thousand tonners". All were scrapped in 1935 to comply with the London Naval Treaty.
Unlike the other "thousand tonner" classes, the Aylwins were not a significant improvement on the previous class.
They retained the Cassins' armament of four 4-inch (102 mm)/50 caliber Mark 9 guns and eight 18-inch (457 mm) torpedo tubes in twin broadside mounts. Compared with the previous Paulding class of the "flivver" type, the increased gun armament reflected the increasing size of foreign destroyers they might have to fight. The broadside (two twin mounts each side) torpedo armament reflected the General Board's desire to have some torpedoes remaining after firing a broadside. The class was probably equipped with one or two depth charge racks each for anti-submarine convoy escort missions in World War I. Benham was equipped with four twin 4-inch mounts in 1917, but these were replaced with single mounts before she deployed overseas. By 1929 all except Parker had a 3-inch (76 mm)/23 caliber anti-aircraft gun added.
The ships were equipped with four White-Forster boilers supplying steam to two Cramp direct-drive steam turbines driving two shafts for 16,000 shp (12,000 kW) as designed; all of the class exceeded this on trials. Compound steam engines could be clutched to the shafts for economical medium-speed cruising. Aylwin achieved 29.6 knots (54.8 km/h; 34.1 mph) on trials at 16,286 shp (12,144 kW); this was typical for the others of the class. Normal fuel oil capacity was 307 tons.
Ships in class
The four ships of the Aylwin class were:
|Name||Hull no.||Shipyard||Laid down||Launched||Commissioned||Decommissioned||Fate|
|Aylwin||DD-47||William Cramp & Sons, Philadelphia||7 March 1912||23 November 1912||17 January 1914||23 February 1921||Scrapped 1935|
|Parker||DD-48||William Cramp & Sons||11 March 1912||8 February 1913||30 December 1913||6 June 1922||Scrapped 1935|
|Benham||DD-49||William Cramp & Sons||14 March 1912||22 March 1913||20 Jan 1914||7 July 1922||Scrapped 1935|
|Balch||DD-50||William Cramp & Sons||7 May 1912||21 December 1912||26 March 1914||20 June 1922||Scrapped 1935|
|Wikimedia Commons has media related to Aylwin class destroyers.|
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- Tin Can Sailors @ Destroyers.org - Aylwin class destroyer
- DestroyerHistory.org Aylwin class page
- DestroyerHistory.org Thousand Tonner page
- NavSource Destroyer Photo Index Page
- DiGiulian, Tony Navweaps.com 4"/50 Mks 7, 8, 9, and 10
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- US Navy Torpedo History, part 2