Robert; The information I have for the Type IXC on type of batteries that were installed are of the type 44MAL740. Nav Tech Report 310-45 of August 1945 and Nav Tech Mission Europe goes into great detail regarding the type and installation of batteries in this class of boat. The problem is I can not find these report anywhere. In addition German Instruction Books listed below contain con
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Phil; Thank you, Looks like some very good information. Will be saving it. Scott Sorenson
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Mr. Jukka Juutinen; Here is some more information I found on the MAN engines that were on the Type IXC u-boats. Two nine-cylinder, supercharged four-cycle MAN diesel engines with salt water cooling are installed on the IXC submarines. The Type IXC U-Boats had a range of some 11,400 nautical miles. Had a total fuel capacity of some 214 metric tons. I guess its time for some more math.Here
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Mr.Jukka Juutinen; This is what I have found concerning fuel consumption of both the Fairbanks - Morse and General Motors engines used in the fleet boats. Fairbanks - Morse Fuel capacity was 118,300 gallons (rated) of diesel oil, which fueled 4 main Fairbanks-Morse opposed piston 1,600 horsepower diesel engines, and one auxiliary Fairbanks-Morse opposed piston diesel engine...which turne
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Mark, Here is some information that I have of the material that the hull is made out of. This is for only the Type IXC boats. The specification for the pressure hull plating and frames calls for a tensile strength of 74000 psi with a yield point of 51300 psi. The steel is known as No. 52: the specification for plates is KM 9104, and for frames is KM 9103. In addition to the dished en
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Paulette, There is NO standard size for any boat past or present. Each boat is built to the same specs but a little different for each boat. This holds true today as it did in the past. The principle characteristics of the Type 9C40 submarine are given in Naval Technical Mission in Europe Report 312-45, and are summarized as follows: L.O.A. - 251'10", Max Beam - 22'6",
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Seeker, The armor protection was confined to 14mm (.55) thick splinter protection on both sides of the bridge, extending from the bridge deck to the top of the bulwark. The material is tentatively identified as Waho/Mo, a special steel.
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Hi Felix, The most common type of U-Boat attack took place on the surface, during the night. The choice aiming device was the UZO (short for Uboot Zieloptik) which was placed on a rotating post on the bridge. It also used the Vorhaltrechner (Torpedo data Computer) (TDC) was the brains of the U-Boat's attack system. Using data provided by use of optic (periscope or UZO) it computes t
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don't feel along, my patrols are not loading also. Scott
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Marc, I appears that both U-471 and U-270 pictures were taken later in the war. On both boats the forward deck gun has been removed. Am I correct on this? Scott Sorenson
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Simon, They are in the same location in both pictures. Your top picture is a top view and your bottom picture is a side view. Thats what it looks like to me. Scott
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Dave, I am sorry about the last note that I sent. It was caused by fat fingers, if you know what I mean. The cylindrical pressure hull has a diameter of 4400mm (14.42 ft) and is made of 18mm (.73 inch) steel. The specification for the pressure hull plating and frames call for a tensile strength of 74000 psi with a yield point of 51300psi. The steel is known as No.52; the specification for
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Dave, The cylindrical pressure hull has a diameter of 4400mm (14.42 feet) and is made of 18mm (.73 inch) steel with inside bulb tee frames 200
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Frank, The tpye of engines used on the IXC U-boats in the direct drive arrangement has a 2170 HP nine cylinder MAN diesel engine coupled to the main motor and to the shaft through appropriate clutches. Each main motor when operating as a motor has a rating of 493 HP and when operating as a generator can develop 710 HP. The two batteries, of 62 cells each, have the capacity to furnish, at the o
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Frank, Go to the Technology & Operations section. I have information about the type of engines used onbard this type of U-boat. Scott
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Robert, I would say, yes it does work in heavy weather. We do know that the U-boats went to sea in heavy weather, like the North Atlantc and around Iceland in the winter. I do have a lot of data on the fuel system for the U-boats. I have not read through all of the data yet. So to get into detail, I can not. I also have some data about insulation and lagging for the U-boats. I know you ha
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Robert, On the Type IX-C boats the fuel oil purification was dependent upon settling and filtration processes; no purifiers are installed. To detect water in the oil or dirty oil, numerous sight glasses and settling gauges on sampling lines are installed.
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Alex, Here is some information that I picked up about torpedo handling, loading and stowage. I hope this helps. I also have some pictures to go along with it but don't know how to load them onto this web site. Sorry about that. GENEAL DESCRIPTION The topside torpedo handling gear varies from U.S. practice in several features. Additional deck arrangements, such as tracks and a dol
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Dear Bobby Boyce, Some time ago you asked about the U-boat alarms, the location and what they look like. I did some reseach and I might have found your answer. The alarms consists essentially of seven watertight magnetic-ally operated vibrator type bells which are located one each as follows: Aft Torpedo Room Maneuvaring Room Engine Room Control Room Officer's Quarters Crew
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Simon, I have the total length is 251'10", the max beam is 22'6", max diameter of pressure hull is 14'7". Scott
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The U-boats carried the following small ams: 2 Mark 98 rifles, 6 Muaser pistols, 5 bayonets. These are all stowed in racks in the Wardroom. In addition, there is one 8mm machine gun. Small arms ammunition consists of the following: 6000 rounds of 8mm in the No. magazine, 768 rounds automatic ppistol ammunition, 360 rounds of Muaser ammunition. No information is locally available which would relat
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Here is some information that I have on the ventilation system for the Type IX U-boats. I hope this helps you out with your question. The American practice has been to omit exhaust piping in the after part of the vessel, thereby reducing the required capacity of the exhaust blower. The Germans have installed supply and exhaust ducts in all compartments and have arranged the piping and blowe
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tlebert, Here is some more information about the hull design. Within the pressure hull the forward and aft trim tanks, and the WRT tanks, are the only structural tanks designed for more than a gravity pressure head. The remaining structural tanks consist of four fuel oil tanks, the lubricating oil tanks, the fresh water tanks and the sanitary tanks. The conning tower is a relatively
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Part II In addition to the dished end bulkheads of cast steel, four other dished cast bulkheads are fitted, dividing the pressure hull into five pressure compartments. These bulkheads are 22mm thick; but material specifications, while inknown, are believede to be German cast steel 45.81 per KM 9106. Further subdivision is provided by two light fabricated bulkheads, one in the battery c
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Tlhert, Th following is for the hulls Types IXC, IXC40, IXD2, XB, and XXI. This will be long so I will do in parts. I just got in from Japan today so this first part will be short. The vessel consists of a cylindrical pressure hull with truncated conical sections at the ends and cast end bulkheads, a conning tower of oval horizontal section with a cast top, a system of exterior ballast an
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David, I also have a good lay outs for the the air starting gear for Krupp and MAN engines. Also Have lay outs for the reversing gear for both the Krupp and MAN engines. But again I don't know how to put them into this web site for all to see. Help!! Scott
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David, I have a good lay out of the shafting arrangement, but I don't know how to do a attachment on this web site. I have it as a microsoft word type document. If somebody can help me I would sent on so all can see it. Help!! Scott
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David, Here is a little information that I have. I don't know if this will answer your question but here goes. The machinery plant on the Type IXC has been designed to provide a maximum sustained surface speed of 19 knots and a submerged speed of 7.5 knots at the one hour rate. This has been accomplished with a direct drive arrangement of a diesel engine and main motor on each of the
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