Four piper

The term four piper, also known as a^[1] four stacker, is United States Navy terminology for classes of destroyers with four funnels. These include the classes listed below:

• Bainbridge-class destroyer
• Paulding-class destroyer
• Wickes-class destroyer
• Clemson-class destroyer

USS Buchanan (DD-131), 1936

These classes were built for use by the United States Navy during World War I and subsequently "moth-balled". Fifty were loaned, under the Destroyers-for-bases deal to the United Kingdom when convoy escorts were desperately needed in the early years of World War II.