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Military


YP - Patrol Craft

The 108-Foot Yard Patrol (YP) is used for instruction in seamanship and navigation at the United States Naval Academy and NAS Pensacola. Two YPs, 697 and 701 are stationed at Keyport, WA and used in conjunction with Torpedo Testing and Training. These craft are arranged and fitted with navigational equipment normally associated with larger ships. In the event of an emergency, the YP can be readily outfitted for use as an inner harbor patrol craft. The YP is a transverse-framed wood hull, powered by two 12V71N diesel engines.

CRAFT IDENTIFICATION DATA

NAVSEA Dwg. No. - 108 YP 101-51035890

Latest Procurement - FY 84/85

PRINCIPAL CHARACTERISTICS

Length Overall

108¢

Max Overall Beam - Molded

22¢-9²

Max Beam - Including Guard Rails

24¢

Max Beam at Waterline

21¢ -10 3/4²

Max Height - Exclusive of Masts, Antenna, etc.

28¢ -1 7/8²

Height, Keel to Shear at Midships

12¢ -71/2²

Full-Load Displacement

396,280 lbs

Light-Load Displacement

318,840 lbs

Potable Water Capacity

2,532 gal

Fuel Capacity

6,462 gal

Construction Wood Hull, Aluminum Superstructure
Navigational Draft

7¢ -6 ½²

Crew:

Midshipmen

24

Instructor

2

Enlisted

4

Cargo None

SYSTEM CHARACTERISTICS

Main Engines:

Two Detroit Diesel Corporation (DDC) 12V-71N diesel engines with Twin Disc marine gears, model MG-514C (5.16:1 reduction ratio).

Starboard Engine: DDC, model 7122-7001

Port Engine: DDC, model 7122-3001

Each engine produces 437 shp at 2100 rpm (intermittent duty rating).

Propellers: - One right-hand, one left-hand, 3-blade, 52-inch diameter x 54.6-inch pitch, nickel/aluminum/bronze, Colombian Bronze Corp., Hydrosonic Style I.

Diesel Generator: - Two, 50 kw, 450-vAC, 60 hz, 3 ph.

Electrical: - 24-vDC is provided by two battery banks and two, 28.5-vDC battery charging rectifiers, or a shore power connector. 440/115-vAC is provided by the diesel generators or a shore power connector.

Communications:

HF/VHF Radio (2 to 80 MHz), 100 W rated power.

VHF Bridge-to-Bridge Radio (155.5 to 162.6 MHz).

UHF Radio (225 to 400 MHz), 10 W rated power.

Secure Voice Capabilities.

Navigation:

Magnetic Compass

Gyro Compass

Depth sounder

North Star GPS

Radar - AN/SPS-64



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Page last modified: 07-07-2011 13:01:28 ZULU