Induction System - Gear Driven Centifugal Supercharger And speaking of that walkway between the engines, I’d like to take this opportunity to vent a personal frustration. It is roughly 2500 cubic inches of displacement. As is ensuring that there’s a screen of some description over your crash-pump pickup(s)—sopping wet dirt and debris make for very poor engine coolant. A Holley 1685F aircraft carburetor supplied the fuel, fired by two spark plugs per cylinder. Model unpainted. Engine overhaul. I am looking to get an estimated value for a marine engine I have. The engine has a data plate on it from overhaul in 1959. I was recently in an engine room in which one of the nozzles for the fire-suppression system was directly over the walkway; admittedly it was protected by a wire cage but nothing protected my bare head from the cage when I failed to sufficiently hunch over. PT 658 Website, published by Save the PT Boat, Inc, Portland, Oregon. U.S. sailors looking down from deck into engine room of PT (Patrol Torpedo) boat in crowded harbor. PT Boat PT-617 (Elco) PT-617 is an Elco class PT Boat.PT-617's specifications are: Length: 80 feet Beam: 19 feet 11 inches Draught: 4 feet Crew: 2 officers and 9 crewmen Displacement: 51 tons fully loaded Max Speed: 41kts (46mph) Fuel Capacity: 3,000 gallons of 100 octane avgas Range: 358 miles at 35kts, 1050 miles on one engine, 11 knots Oil Capacity: 30 gallons This engine was used for both the 85 ft. crash boat, the more common PT-boats and The British Power Boat Co. high speed rescue launches . Piston Stroke - 6 1/2" Some part cleanup will be necessary. I am modeling a late war ELCO 80 foot model, PT-615. The Porpoise was an old PT boat. Space restrictions on any given boat are one of those things that is imposed on the designer—he can’t provide more headroom or width between the engines than the basic vessel envelope allows. A Holley 1685F aircraft carburetor supplied the fuel, fired by two spark plugs per cylinder. Then Stan, a contractor who builds luxury homes, came up with this one: “You know, the engine room of a boat is a lot like the basement of a home.” Before any of us could ridicule his observation Stan explained himself. PT-Boat Engine Room Cover Vent & 40mm Ammo Ready Rack. He is said to have heard the destroyer moments before it struck. "Personal Caption: "RON 35. On virtually any boat, the placement of the raw-water strainers near an engine room’s entrance, either abaft the engines or ahead of them (depending on the location of the entrance), can make the task of checking them, and closing the seacocks in an emergency, easier. This engine was used for both the 85 ft. crash boat, the more common PT-boats and The British Power Boat Co. high speed rescue launches . Engines 3 engines, supercharged Packard V12 model 4M-2500. Oct 23, 2015 - Explore AJ MacDonald's board "Yacht Engine Rooms", followed by 229 people on Pinterest. Based on the Packard 3A-2500 aircraft engine. Electrical System - 24 Volt, Back to the Elco PT Boat PT-617 Main Page. This isn’t ideal—the bilges are the first place to flood—but it’s a fact of life. This engine produced between 1200 to 1500 BHP. A well-configured engine room will be designed and built around the main propulsion system. It had been a great day on the water, and we were all waxing philosophic, impressing each other with what felt at the time like deep and meaningful insights on the state of boats and boating. PT (Patrol, Torpedo) boats were small, fast, and expendable vessels for short range oceanic scouting, armed with torpedoes and machine guns for cutting enemy supply lines and harassing enemy forces. Rubber, on the other hand, reflects little heat and offers superior traction when wet or oily. As for the genset, the typical location is as far aft in the engine room as possible—often under a stairway or cockpit. Be leery of twin-engine boats where the outboard sides of the engines are not fully accessible. Whether someone enters an engine room in an emergency or just for a routine check underway, there are aspects of the space’s design that can make his job easier. I was sitting in the cockpit of my friend Stan’s boat last fall, enjoying a cocktail with a couple of other friends as the sun slid below the horizon. Two engines port and starboard at forward end of engine room driving through clutch and reverse gear directly to the propellers. There are some more detail shots in the Higgins PT Boat Engine Room gallery that show the transmission shift lever better. So the prudent boater should think about equipping his vessel with a dedicated emergency battery (if she doesn’t already have one) that can run his VHF and other key electronics, and mounting it as high as possible. If the boat has twin engines, the same rule applies. Of course it’s difficult for engineers and designers to cluster all of these in the limited space that’s available, so look for the prioritization of things you’ll need to reach in an emergency. These beams add strength and help seal water out since they rise up from the deck about 5 5/8". You know, just like your basement. This sailor was a “Motormac” — one of the motor machinists who played such an important role in maintaining the Packard engines which gave the PTs their remarkable velocity. Engine room space and engine weight are critical - that is why we made sure that our EPA Tier 4 engines are similar in size and weight to engines that meet prior emission standards. Based on the Packard 3A-2500 aircraft engine. “The basement gets no respect. Everyone loves the shiny diamondplate panels that typically cover this walkway. I don't know if the connector duct was used on non-heater equipped boats or on PT 163-196, or if cover plates were used. On PT 103-162 boats with heaters (possibly PT 139-141 only), the sections of the throttle push rod deck housing that ran alongside the day room cabin trunk (sections 2, 3, and 4) were also used as a heater duct. And if it’s neat and well organized, he’s probably a high-end contractor, like me!”. In fact I think none of us ever looked at our engine rooms in quite the same way again, because an engine room really is a place that can define both a boat and her owner. NOTE: The Detail Specifications are based on Specifications for Motor Torpedo Boats PT 103 to 138 design No. If you need a different size or a custom part designed just for you? Hollowed to saved material. Packard 4M-2500 W-14 V12 Marine Engine Specifications: # Cylinders - 12 Of note concerning the Higgins design is that it did maintain the same engines, internal working components, cabin spaces, displacement and beam as her ELCO boat sister. With three feet of water in the engine room, Lt. Kelly beached the boat, and abandoned it. And speaking of emergencies, if your engine room is equipped with valves that allow the engines’ raw-water pumps to draw from the bilges instead of the outside water—in other words, crash pumps—the system may be of limited use if you have to make your way forward and then grope for a submerged lever because the engine room is partially flooded. They ran on 100 octane aviation gasoline stored in tanks sandwiched between the outer hull and inner cabin walls. If they’re over in the corner behind the A/C system and not accessible, they’re basically useless. Organization? See more ideas about yacht, engineering, yacht broker. 1941 PT 1-2 Length: 58-feet; Beam 16-feet; Draft 4-feet 4-inch; weight 30 tons; Speed: 30 kts; 2 engines 1000Hp; 2 screws with 2 rudders; carried 2 officers 1940 PT 3-4 Length: 58-feet; Beam 16-feet, Draft 4-feet 4-inch; weight 30 tons; Engines: 2 at(@) 1200 Hp; 2 screws (propellers) with 2 … I am modeling a late war ELCO 80 foot model, PT-615. The two engine areas that present the greatest potential hazard in an engine room when the boat is underway are the two places where things are moving—the front and the back. © 2020 Cruz Bay Publishing Inc., an Active Interest Media company. These are often placed on the forward firewall and often near the valves that control which fuel tanks the mains and genset draw from and return to. Sooner or later someone is going to have to go inside the engine room while the boat is underway, so good design should focus on minimizing the time required to do whatever job is necessary. The captain did not have direct control of engaging, disengaging or reversing the Packard V12s. Many boats are also equipped with separate emergency engine-room lighting that operates on a different circuit, usually on a much lower voltage. PT 658 Website, published by Save the PT Boat, Inc, Portland, Oregon. If it’s empty or cluttered with boxes, he’s a guy who doesn’t do anything himself. And metal—even with the diamondplate surface—can be slippery when it’s wet or oily. Today almost all engines have metal guards covering the forward moving parts, … An obvious one is the placement of key maintenance points on the engine—most notably dispticks—inboard where they can be quickly accessed, which thankfully most engine manufactures automatically do today.Most engines today are also equipped with remote coolant reservoirs, which allow you to check engine-coolant levels without the hazard of removing the engine-mounted pressure cap. As a consequence we often see batteries as low in a boat as possible, not infrequently under that beautiful diamondplate. This website is used to educate the public and to keep them informed on the status of the World War II, Higgins PT Boat. Specifically, it was the PT-658 – the only World War II-era PT boat still floating. The rule for lighting is pretty simple: the more wattage the better. These need to be out in the open where they can be quickly checked visually. That way, when everything else has failed, you can still determine your precise position and put out a proper distress call. Packard V12 Marine Engine. On the engine room cover, I have used the information I got from visiting PT-617. It’s uncommon (but not unheard of) to find a pleasureboat engine room where this is a problem because proper sizing of the engine-room openings is an important part of the design process. Virtually all modern gensets have “single-side servicing,” meaning the dipstick, oil fill and drain, and hopefully the raw-water pump, are all on one side. The same is true of the overhead. If your main fuel tank is amidships and forward of the engines, as it is in many boats to ensure relative constant running trim as fuel burns off, it may have been impractical to place both the separators and the fuel valves anywhere else. I am looking to get an estimated value for a marine engine I have. Cylinder Bore Diameter - 6 3/8" Outboard engines were reversed with V drives, some later boats may have had outboard engines spaced farther apart facing the same way as the center engine. Please send me a PM. He would have to call down to the engine room to make any of those changes. But if you’re shopping for another boat or maybe just sprucing up the one you have, what makes a good engine room? An engine room that’s finished in high-gloss white paint will reflect the available light into a lot of nooks and crannies, but ultimately a portable trouble light or flashlight may be required. PT-Boat Engine Room Cover Vent & 40mm Ammo Ready Rack. The captain did not have direct control of engaging, disengaging or … Special metal shutter shall be fitted on chart house door. You might also think of flagging your fuel-water separators, whose clear settling bowls should be frequently checked for signs of contamination. That’s likely to mean that you-know-who is not going to bother to check the oil level as often as he should. The PT 658 is offically recognised on the National Register of Historic Places by the National Park Service. Is it appearance? Yes, it’s not nearly as pretty as diamondplate, just more practical.And, by the way, even if the boat you want to buy has metal diamondplate in her engine room, you may be able to cover it with a non-slip-backed rubber mat or mats. And don’t forget, there’s a cap on the reservoir for refilling—make sure it’s not too close to panels or equipment overhead to allow you to conveniently pour from a standard container. I’ve been working on the engine room cover and ran into some snags. But even in a tight space, there is much that can be done to make passage forward easier, particularly by making sure there are no projections  into the walkway, be it from the engine or from some other piece of equipment, like a valve handle from an oil-change system or fuel-water separator. This is fine but often the system is significantly less powerful than the main system and lacks the illumination required in an emergency. Elco PT Boat PT-617 - Engine Room The Elco PT Boat uses 3 Packhard V-12 marine engines. Of course it’s all those things. But on many boats, these reservoirs are difficult to see because they are placed wherever there’s a bit of free space—if such is the case on your boat (or your prospective boat), consider moving them to a spot where you can see them most conveniently and quickly, perhaps near the central walkway. It’s the place no one cares to visit except maybe the owner, yet it’s where most of the important stuff happens. It is a WWII era Packard 4m-2500 v-12 that came from a PT Boat. BUREAU OF SHIPS NAVY DEPARTMENT 31 March 1944. Black-out shutters shall be provided throughout boat, including screens for fixed and hinged windows and ventilators. Fuel - 100 Octane Avgas This practice is de rigueur on commercial vessels, incidentally. He couldn't engage the gears via the engine room to power the boat out of the way in time to avoid being sunk. RC Boat Remote Control Boats for Pools and Lakes, STOTOY Racing Electric Boat 2.4GHz 14km/h Mini Remote Boat Toys Indoor/Outdoor for Kids Boys Girls (Only Works in Water) 3.9 out of 5 stars 24 $33.99 - … The modelling objective here is to make an operational 1/20th scale Packard V12 Marine Engine that looks like the original V12 engine but is actually an electric motor (and possibly gearbox) housed in a cast shell and when completed it should fit the exact mounting bed of the original engine. Of even greater concern are the genset’s remote coolant reservoir and fuel-water separator. The placement of things you are most often going to need to access as close as possible to the engine-room entrance means you will be able to get to them without actually going too far into the engine space. This is great for maintenance convenience, as long as the unit is mounted so the service side is really accessible, which it often is not. Real scaled from original. PT-34 was later strafed by Japanese aircraft The two engine areas that present the greatest potential hazard in an engine room when the boat is underway are the two places where things are moving—the front and the back. 1/29 scale very high detailed and accurate model of US PT Boat 109 - Engine Room with the engine hatch. One simple way to deal with the dangerous transit between hot engines, of course, is to make sure you’ve got a central handrail overhead. These things include switch panels, fuel-distribution valves, battery switches, and auxiliary gauge panels. It’s about a space that’s designed so that, although you don’t go there unless you have to (by the way, we do recommend periodic engine-room checks while underway), when you do you can accomplish what you need to as quickly and safely as possible. It is a WWII era Packard 4m-2500 v-12 that came from a PT Boat. The Model PT Boat Site. The same applies to sight gauges, although if a boat is equipped with saddle tanks, placement aft may make them visible from the engine-room entrance. One of the three Packard V-12 marine engines that power a PT boat. This one is the 1200 HP version, later models were 1500 HP. I’ve been working on the engine room cover and ran into some snags. NOTE: The Detail Specifications are based on Specifications for Motor Torpedo Boats PT 103 to 138 design No. Screens shall be of solid plywood type, sliding in runners for windows, and under engine room vents, to be combined with spray shields, fitted with drains to deck. PT-34 was attacked near Kauit Island by four Japanese F1M "Pete" floatplanes from the Sanuki Maru on 9 April 1942, in the aftermath of the Kuma attack. This engine produced between 1200 to 1500 BHP. The propeller thrust bearing shall be included in the reverse gear housings. They really add a classy touch to a finely fit engine room. Well, apart from that last piece of self-aggrandizement, Stan convinced us all. Here both space constraints and trim considerations have probably ruled the day—a designer needs to keep weights evenly distributed side to side and position mass well aft to allow for good planing performance. See, feel, and know the operation, maintenance, and … The top outsides are milled for a small amount of … You can tell a lot about how well a home is built by looking at the basement, how carefully the wiring and plumbing were done, how the floor joists are tied in—stuff like that. It’s full of hot surfaces, spinning objects, and toxic chemicals, so good engine-room design starts with a reduced need to go into the place, and ensures your safety when you do. A PT is different from any other man-of-war in that every man aboard must know his boat from stern to stem. The engine has a data plate on it from overhaul in 1959. Two straight beams called coamings run the length of the chart house, day room, and engine hatch, and are integral to the hull. And you know, if you go into a man’s basement, you can tell a lot about what kind of a homeowner he is. Just moving around in an engine room can be challenging. All Rights Reserved. And, whether we’re talking the boat you own now or one you’re thinking of buying, make sure you keep earmuffs and other protective gear stowed near but outside the engine-room door. Alternate (c).-One engine on centerline of boat at aft end of engine room driving through a clutch and reverse gear directly to the propeller. The PT 658 is offically recognised on the National Register of Historic Places by the National Park Service. When Lt. John F. Kennedy was rammed and sunk by a Japanese Destroyer one very black night, he was idling with all 3 engines in neutral. The Elco PT Boat uses 3 Packhard V-12 marine engines. 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