What is "dumaresq"

The Dumaresq is a mechanical calculating device invented around 1902 by Lieutenant John Dumaresq of the Royal Navy.

The dumaresq is an analog computer that relates vital variables of the fire control problem to the movement of one's own ship and that of a target ship. It was often used with other devices, such as a Vickers range clock, to generate range and deflection data so the gun sights of the ship could be continuously set.

A number of versions of the Dumaresq were produced of increasing complexity as development proceeded.

Dumaresq may refer to:

• Armidale Dumaresq Shire, a local government area in north-eastern New South Wales
• Dumaresq, New South Wales, an old stop on a New South Wales railway line
• Dumaresq Creek, running through Armidale in Armidale Dumaresq Shire
• Dumaresq Lake, a lake in Nova Scotia, Canada
• Dumaresq River, an Australian river that forms part of the border between New South Wales and Queensland

• Charles Édouard Armand-Dumaresq, a French painter
• Daniel Dumaresq, a Channel Islands-born Anglican priest, who served as an educational advisor to the Russian and Polish monarchies
• John Saumarez Dumaresq, Australian-born Royal Navy officer, and first Australian to command the Royal Australian Navy
• Michelle Dumaresq, a Canadian professional downhill mountain-biker

• Dumaresq, an analogue computer designed in 1902 to assist in warship gunnery