Owner Name – Save the PT Boat, Inc.
Make and Model – Higgins PT 625 Class
Length – 78′
Power – Mercury 1150 outboardThree Packard 5M-2500 V-12 Marine Engines
Description / History – For more information about PT 658 visit the website:
Save The PT Boat, Inc. PT658 Heritage (savetheptboatinc.com)
PT658 is a 625 Class Motor Torpedo Boat built at Higgins Industries Boat works, New Orleans LA. The keel was laid down 2-24-45, launched on 4-11-45. and completed on July 30, 1945. The boat was originally slated to be part of Squadron (RON) 45, which was never placed in commission. It consisted of 11 Higgins PT’s 649-660, and 11 Elco PT’s 773-784 and assigned to the Pacific Fleet.
Near the wars end in mid-1945, RON45 was scheduled to be “Lend-Leased” to the USSR. Several boats in the group (649 to 656) were already shipped to Russia when the transfer was halted; just before PT 657-660 were to be sent over. The Elco construction contract was also canceled at this time. PT657-660 had been moved from New Orleans to Seattle on an LST, where they would be piggybacked onto a transport ship bound for Russia. When the war ended (Sept ’45) PT’s 657-660 were in Bremerton, WA. ready to start their trip to Russia. PT 657 was sold in 1946 and was converted into a sport fishing boat. 657 is still operating today as the Malahini, in San Diego, Ca.
PT’s 658-660 were shipped to Pt. Hueneme, Ca. to be assigned to duty there associated with the Navy’s Pacific Missile Test Center at Pt. Mugu. PT 658 was assigned primarily to transporting USAF personnel and supplies to Santa Rosa Island where the Air Force had a radar base.
PT 658 was sold as surplus in 1958 to the Brown family in Oakland, CA and converted to a family pleasure boat. Eventually PT 658 fell into a state of disrepair and 35 years later was acquired by a group of PT veterans in Portland. OR and restored.
PT 659 continued to operate with the USN until 1970 when it was sold for surplus. It eventually was moved to Portland, OR where it was eventually scrapped with the remains supplied to World War II Museum in New Orleans for restoration of PT 305. PT 660 was accidentally sunk by a Navy Bullpup missile in 1968 while on picket duty on the missile test range at PT Mugu. The six-man crew, on board that day, received minor and some serious injuries but all were rescued and survived.
PT 658 is powered by Three Packard-Marine 5M-2500, V-12 Engines. These engines 12 cylinder, 4 cycle, water cooled, 60-degree, V-type with a 6-3/8” bore and 6-1/2” stroke, for a total of 2490 cubic inches of displacement. Each engine has 48 valves, 2 intake and 2 exhaust valves per cylinder, operated by a single overhead cam shaft for each cylinder bank. The cylinder compression ratio is 6.4:1 and the engines are fitted with a gear-driven centrifugal supercharger and intercooler. Fuel is supplied by a Holley 1685F aircraft-type carburetor, The engines develop 1850 hp at 2800 rpm. Maximum revolutions at 3000 rpm. Engine weight is 3100 pounds.
Four fuel tanks (2 forward tanks at 800 gallons and 2 aft tanks at 700 gallons each) with a total of 3000 gallons of 100-octane aviation gasoline (AVGAS). Range varied depending on overall operating speed. Typically, 12 hours or 520 miles could be expected with engine speed limited to 2000 rpm/35 knots cruising speed or 6 hours with maximum rpm/42+ knots top speed. The 700-gallon aft fuel tanks have been removed from PT658 as the two 800-gallon tanks are more than adequate.
PP-658 currently is docked in a boat house on Swan Island in Portland and is open for tours by appointment.
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