4 × 40 mmBofors in twin mounts in the 'B' and 'X' position. 10 × 20 mm single mount Oerlikon cannon, four either side of the bridge, four in sponsons abaft the funnel, two on the fantail
The lead ship was USS Rudderow which was launched on 14 October 1943. The ships had General Electric steam turbo-electric drive engines. The ships were built at various shipyards in the United States, including the Philadelphia Navy Yard and Defoe Shipbuilding Company. They were very similar to the Buckley class, having the same hull and machinery. The main differences were the Rudderows had two 5-inch (127 mm) enclosed guns and two twin-40 mm mounts, instead of the three 3-inch (76 mm) open guns and one twin-40 mm or one quad 1.1-inch (28 mm) mount of the Buckleys. Another major difference is the style of the configuration of the area of the bridge and pilothouse which is low and enclosed compared to the Buckley Class which is tall and enclosed. The Rudderow Class is similar to the John C. Butler Class in this case and a distinguishing feature between these two class DEs is the size and number of the portholes in the pilothouse. The Rudderow class has seven 16-inch portholes and the John C. Butler Class has nine 12-inch portholes, with both classes having three portholes facing the bow. The class was also known as the TEV type from their Turbo-Electric drive and 5-inch (V) guns.[1]
View forward from the mast of Rudderow-class USS Chaffee (DE-230) showing 5in and 40mm guns.
View aft from the mast of Rudderow-class USS Chaffee (DE-230) showing rear 5in and 40mm guns, depth charge racks, depth charge projectors and torpedo tubes.