The United States Navy

Yard Patrol Craft - YP

Revised: 23 July 2002

Yard Patrol craft passing in review at the U.S. Naval Academy Description: Yard Patrol craft are used for training and for research purposes.

Background: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, Md., and candidates at Officer Candidate School, Pensacola, Fla. These craft can cruise for 1400 nautical miles at 12 knots for five days without refueling.

The YPs are used at the Naval Undersea Warfare Center Division, Keyport, Wash., 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(s) of interest.

Point of Contact:
Public Affairs Office
Naval Sea Systems Command (OOD)
Washington, D.C. 20362

General Characteristics, YP 654 class (YP 663)

Primary Function: Training
Builders: Stephens Bros., Inc. (YP 665: Elizabeth City Systems)
Power Plant: 12V-71N Detroit diesel engines, 2 propellers, horsepower rating 437 shaft horsepower @ 2,100 RPM
Overall Length: 81 ft, 24 meters
Waterline Length: 77 ft, 23.47 m
Beam:18 ft, 5.5 m
Draft: 6 ft, 1.8 m
Displacement: 66 tons full load, 67 metric tons
Dead Weight: 11 tons, 11.5 metric tons
Speed: 12 kts, 19.6 km/h
Cruising Radius 1800 nm, 3300 km
Hull Material: Wood hull, aluminum superstructure.
Crew: Officers: 2 Enlisted: 8
Safe capacity: 50 people

General Characteristics, YP 676 and YP 696 classes

Primary Function: Training
Builders:
Peterson Builders (YP 676 through 682)
Marinette Marine (YP 683 through 700)
Differences between the YP 676 class and the YP 696 class are only minor configuration changes.
Power Plant: 12V-71N Detroit diesel engines, 2 propellers, horsepower rating 437 shaft horsepower @ 2,100 RPM
Overall Length: 108 feet (32.9 meters)
Waterline Length: 102 feet (31.1 meters)
Beam:24 feet (7.3 meters)
Draft: 8 feet (1.9 meters)
Speed: 12 knots (19.6 km/hr)
Cruising Radius 1800 nautical miles (3300 km)
Hull Material: Wood hull, aluminum superstructure.
Crew: Officers: 2 Enlisted: 4
Safe capacity: 50 people
Ships:
Naval Station, Annapolis, Md. (NAVSTA): YP 680 through 692, YP 694, YP 695, YP 698, YP 700
Naval Air Station, Pensacola, Fla. (NAS) : YP 696 and YP 702
Naval Undersea Warfare Center Division, Keyport, Wash.: YP 697 and YP 701

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