Type 41 torpedo boat

The start of World War II in September 1939 caused the cancellation of most of the planned Type 39 torpedo boats and only 15 ships were ordered. Shortages of labor and materials seriously hampered their construction so that the Kriegsmarine did not consider improvements until 1941. It decided upon a slightly enlarged version of the Type 39 with more powerful propulsion machinery to give the ships a speed of {{convert|34|kn|lk=in}} and space for an additional twin-gun {{convert|3.7|cm|in|sp=us|adj=on}} anti-aircraft mount.Whitley 1991, p. 59; Whitley 2000, p. 75

The ships had an overall length of {{convert|106|m|ftin|sp=us}} and were {{convert|102|m|ftin|sp=us}} long at the waterline. They had a beam of {{convert|10.7|m|ftin|sp=us}}, and a maximum draft of {{convert|3.72|m|ftin|sp=us}} at deep load. The Type 41s displaced {{convert|1493|LT|t|lk=on}} at standard load and {{convert|2155|LT|t}} at deep load. Their hull was divided into 13 watertight compartments and it was fitted with a double bottom that covered 69% of their length.Gröner, p. 195 Their crew numbered 210 officers and sailors.Sieche, p. 239

The Type 41 ships had two sets of Wagner geared steam turbines, each driving a single three-bladed {{convert|2.65|m|ftin|adj=on|sp=us}} propeller, using steam provided by four Wagner water-tube boilers that operated at a pressure of {{convert|70|kg/cm2|kPa psi|0|abbr=on|lk=on|sp=us}} and a temperature of {{convert|460|°C}}. The turbines were designed to produce {{convert|40000|shp|lk=on}} for a speed of 34 knots. The ships carried a maximum of {{convert|559|t|LT|0|sp=us}} of fuel oil which gave a range of {{convert|2800|nmi|lk=in}} at {{convert|19|kn}}.Whitley 1991, p. 203

The main armament of the Type 41 class consisted four 42-caliber 10.5 cm SK C/32 naval gun{{refn|In Kriegsmarine gun nomenclature, SK stands for Schiffskanone (ship's gun), C/32 stands for Constructionjahr (Construction year) 1932|group=Note}} guns in single mounts; one forward of the superstructure, one between the funnels, and two aft, one superfiring over the other.Whitley 2000, p. 75 Its mount had a range of elevation from -10° to +70° and the gun fired {{convert|15.1|kg|lb|adj=on|sp=us}} projectiles at a muzzle velocity of {{convert|785|m/s|ft/s|abbr=on}}. It had a range of {{convert|15175|m|yd|sp=us}} at an elevation of +44.4°.Campbell, p. 248

Anti-aircraft defense was provided by three twin 80-caliber 3.7 cm SK C/30 anti-aircraft (AA) gun mounts; two of these positioned on a platform abaft the rear funnel and another was in front of the bridge.Whitley 1991, pp. 58–59, 203 The power-operated mount had a maximum elevation of 85° which gave the gun a ceiling of less than {{convert|6800|m|ft|sp=us}}; horizontal range was {{convert|8500|m|yd|sp=us}} at an elevation of 35.7°. The single-shot SK C/30 fired {{convert|0.748|kg|lb|adj=on}} projectiles at a muzzle velocity of {{convert|1000|m/s|ft/s|abbr=on}} at a rate of 30 rounds per minute.Campbell, p. 256 The ships were also fitted with eight 2 cm FlaK 30/38/Flakvierling guns in one quadruple mount on the aft superstructure and a pair of twin mounts on the bridge wings. The gun had an effective rate of fire of about 120 rounds per minute. Its {{convert|0.12|kg|lb|adj=on|sp=us}} projectiles were fired at a muzzle velocity of {{convert|875|m/s|ft/s|abbr=on}} which gave it a ceiling of {{convert|3700|m|ft|sp=us}} and a maximum horizontal range of {{convert|4800|m|yd|sp=us}}.Campbell, p. 258 Each ship carried 2,000 rounds per gun.

The Type 41s were also equipped with six above-water {{cvt|533|mm|in|0}} torpedo tubes in two triple mounts amidships. They used the G7a torpedo which had a {{convert|300|kg|adj=on|sp=us}} warhead and three speed/range settings: {{convert|14,000|m|yd|sp=us}} at {{convert|30|kn}}; {{convert|8,000|m|yd|sp=us}} at {{convert|40|kn}} and {{convert|6,000|m|yd|sp=us}} at {{convert|44|kn}}.Campbell, p. 263 For anti-submarine work the ships were fitted with four depth charge launchers and six individual cradles for 32 depth charges. They probably would have been equipped with the same electronics suite as the late Type 39s: a S-Gërat sonar, a FuMO 21{{refn|{{lang|de|Funkmess-Ortung}} (Radio-direction finder, active ranging)|group=Note}} radar and FuMB7{{refn|{{lang|de|Funkmess-Beobachtung}} (Passive radio-direction finder)|group=Note}} "Naxos" and FuMB8 "Wanz G" radar detectors.Friedman, p. 205; Whitley 1991, pp. 52–55, 59; Whitley 2000, p. 73

The ships of the second and third batches would have been fitted with a high-angle fire-control system to give their main battery an anti-aircraft capability. They also would have received fully automatic 3.7 cm Flak M42 guns in lieu of the semi-automatic SK C/30 weapons of the earlier ships.Whitley 1991, p. 59

The Kriegsmarine ordered T37–T42 from Schichau on 25 November 1942, although their turbines had been ordered in August 1941. A batch of six more, T43–T48, were ordered on 12 June 1943 and the final batch of four, T49–T51, on 11 January 1944. All were built at the company's shipyard in Elbing, East Prussia, (now Elbląg). T51 was cancelled before construction began. The Kriegsmarine originally estimated that T37 would be completed by the beginning of 1945, but labor shortages and other problems delayed the ships by two to three months. All work ceased at the shipyard on 22 January due to power failures, a lack of workers and the advancing Soviet forces which were approaching East Prussia.Whitley 1991, pp. 59, 213

T37, T38 and T39 were towed from Elbing around 23 January for completion at shipyards further west. T37 was intended to be finished at the Deschimag yard in Bremen, but was found in Bremerhaven by American troops at the end of the war with no further work having been done. T38 and T39 were towed to Kiel at the same time as T37; the former was also intended to go to Deschimag. No further work was done on either ship. T40 was towed west on 9 March, bound for Eckernförde with a cargo of a dozen Linsen explosive motorboats aboard, but ran aground at Brösen, Danzig, on the 12th. She was partially salvaged, but was scuttled shortly afterwards.

{{reflist|group=Note}}

{{Reflist|30em}}

• {{cite book|last=Campbell|first=John|title=Naval Weapons of World War II|year=1985|publisher=Naval Institute Press|location=Annapolis, Maryland|isbn=0-87021-459-4}}
• {{cite book|last=Friedman|first=Norman|title=Naval Radar|year=1981|publisher=Conway Maritime Press|location=London|isbn=0-85177-238-2|author-link=Norman Friedman}}
• {{Cite book |last=Gröner|first=Erich|title=German Warships 1815–1945|year=1990 |location=Annapolis, Maryland|volume=1: Major Surface Warships|publisher=Naval Institute Press |isbn=0-87021-790-9|author-link=Erich Gröner}}
• {{cite book|author1-last=Sieche|author1-first=Erwin|editor1-last=Chesneau|editor1-first=Roger |title=Conway's All the World's Fighting Ships 1922–1946|year=1980|publisher=Conway Maritime Press |location=London |isbn=0-85177-146-7|name-list-style=amp|chapter=Germany}}
• {{cite book|last=Whitley|first=M. J.|title=Destroyers of World War Two: An International Encyclopedia |year=2000| publisher=Cassell & Co.|location=London|isbn=1-85409-521-8|author-link=Michael J. Whitley}}
• {{cite book|last=Whitley|first=M. J.|title=German Destroyers of World War Two|publisher=Naval Institute Press |date=1991|isbn=1-55750-302-8 |location=Annapolis, Maryland}}

{{WWII German ships}}

{{DEFAULTSORT:Type 41 torpedo boat}}

Category:World War II torpedo boats of Germany

Category:Torpedo boats of the Kriegsmarine