Yard patrol boat


Yard Patrol craft are used by the United States Navy for training and for research purposes. They are designated as YP in the hull classification symbol system.

World War II

Following the attack on Pearl Harbor the United States Navy leased California based tuna boats for the duration of the war or "until victory". On February 16, 1942, San Diego Port Director Commander W.J. Morcott called a meeting of tuna skippers and crews at the Naval Armory Reserve telling the men “The Navy needs men to man the — experienced men, like yourselves. Needless to say, duty in the war zones will be hazardous.” Six hundred tuna boat men volunteered to join their boats in the navy. The boats were painted navy grey and had their names replaced with numerical designations. The ships patrolled the coasts of the United States, the Panama Canal and served in several battles of the South Pacific, particularly the Battle of Guadalcanal.

Modern usage

The YPs are used to teach familiarization with water craft, Basic Damage Control and underway instruction of Basic to Advanced Seamanship and Navigation. Yard Patrol craft provide realistic, at-sea training in navigation and seamanship for midshipmen at the U.S. Naval Academy in Annapolis, Maryland and used by the U.S Naval Sea Cadets Corps for Damage Control, and seamanship for familiarization out in the fleet. These craft can cruise for at for five days without refueling.
YP701 is used at the Naval Undersea Warfare Center Division in Keyport, Washington, to measure mobile underwater target and torpedo radiated noise plus ambient water noise conditions; serve as a platform for deployment of suspended, stationary, in-water acoustic targets during on-range torpedo proof and test operations; deployment of countermeasure emulator during torpedo operations; and deployment of oceanographic measurement instrumentation to determine seawater conductivity and temperature at the depth of interest.
The new Training Patrol Craft are designated the YP 703 class. The general craft characteristics of the YP 703 class emphasize habitability, training areas, hull structure, integrated bridge, maneuverability, propulsion plant configuration, and, for training purposes only, simulated Underway Replenishment. The main and auxiliary systems and electronics are state-of-the art, Commercial-Off-The-Shelf equipment. Design, construction, and selection of systems, sub-systems, and equipment along with associated software are consistent with reduced Total Ownership Cost and shall facilitate system maintenance and periodic upgrades.
The primary mission of the Training Patrol Craft is to provide the midshipmen professional training course with practical training afloat on a robust platform to conduct professional development in a safe shipboard environment equipped with systems essential to modern seamanship and navigation. Such training is designed to develop within midshipmen the abilities of an Officer-of the Deck, a proficiency in navigation, and a working knowledge of afloat operations.

Post USN usage

As of May 24th 2018, it has been learned that the YP 165, Norwester, which had been owned at one time by John Wayne and was previously reported to be open for tours at the La Conner, WA marina, has now ceased to operate as a museum. A call placed to the mayor's office suggested that the vessel may, in fact, have been sold. Further details may be forthcoming when additional information is received from the La Conner Washington Chamber of Commerce.
The web site: https://waggonerguide.com/john-waynes-boat-the-Norwester; reports that the famous actor, John Wayne, owned YP 165, which was named, Norwester, and was in service from 1941 to 1945, as represented by the plaque displayed in one of the photos for the boat. She is permanently moored at the La Conner, WA marina and is open for tours.
T/V Liberator, YP 679, is used as a training vessel for maritime students at the US Merchant Marine Academy. Three other YPs from the US East Coast have been sold from Navy inventory but their whereabouts are not presently known. One was for sometime moored near St. Michaels, Maryland in a dilapidated state but is no longer there as of spring 2017. Another was sold circa 2000 at Pensacola, FL and was converted to a pleasure/passenger vessel but also no known whereabouts of that vessel are known. YP697 was sold by the Navy in 2016 to a company in Seattle which as of 2017 is converting the vessel to becoming a small research and passenger charter vessel.
T/V MANATRA III, YP 671, is under private ownership and used by The Marine Navigation and Training Association Inc. as a training vessel for the United States Naval Sea Cadet Corps. Her current home port is DuSable Harbor, Chicago, IL.

Boat classes

General characteristics, YP 654 class (YP 663)