General Discussions
This is the place to discuss general issues related to the U-boat war or the war at sea in WWII.
RE: Tesla, inventor of ASDIC
Posted by:
Don Baker
()
Date: December 09, 2000 05:04PM
<HTML>Hi Finn
I believe Rainer is quite correct - Tesla was predicting Radar which employs the detection of electromagnetic waves reflected from the target. ASDIC or sonar is based on the use of acoustic pressure waves traveling through the water.
Incidently, the V1 was not a rocket. It was actually a small winged aircraft, as Rainer has pointed out, which used an air-breathing engine called a \"ram jet\" and it flew at subsonic speeds. The jet engine operated as a pulse jet and emitted a loud buzzing noise as it flew which could be heard on the ground as it approached its target. This distinctive sound gave it its popular name as it was referred to during the war as the \"Buzz Bomb\". Royal Air Force pilots attempting to intercept the incoming V1s would sometimes fly alongside the bomb, manuever to get a wingtip under it and then flip it over. This would cause the gyro to tumble and the V1 to go out of control and crash. Some were also shot down but they were a small target and difficult to hit.
In early April of 1945, Group Seawolf consisting of six IXC snorkelers was launched by Adm. Doenitz against the US east coast with orders to \"...attack ruthlessly and with determination\". This operation served no strategic purpose as the war at that time was almost over for Germany. However Allied intelligence had information Seawolf might be attempting an attack on New York with V1s or V2s. (This later turned out to be not true - none of the subs were carrying this type of weapon.) A huge defensive measure (Operation Teardrop) was mounted which included the escort carriers Bogue, Card, Croatan, and Mission Bay and scores of DEs in an effort to intercept these subs.
On April 15, U-1235 and U-880 were detected and sunk by the DEs. U-518 was sunk on 21 April. On the morning of the 23rd the DE USS Frederick C. Davis detected U-546 and was closing to launch a hedgehog attack when she was struck by a torpedo from the sub, broke in half, and sank. In the ensuing battle with the DEs, U-546 was sunk later that day. U-881 had been sent out on 8 April to join the original six boats but was detected and sunk on 6 May. The remaining two boats were never found.This was the last big sub battle off the US east coast.
Don B</HTML>
I believe Rainer is quite correct - Tesla was predicting Radar which employs the detection of electromagnetic waves reflected from the target. ASDIC or sonar is based on the use of acoustic pressure waves traveling through the water.
Incidently, the V1 was not a rocket. It was actually a small winged aircraft, as Rainer has pointed out, which used an air-breathing engine called a \"ram jet\" and it flew at subsonic speeds. The jet engine operated as a pulse jet and emitted a loud buzzing noise as it flew which could be heard on the ground as it approached its target. This distinctive sound gave it its popular name as it was referred to during the war as the \"Buzz Bomb\". Royal Air Force pilots attempting to intercept the incoming V1s would sometimes fly alongside the bomb, manuever to get a wingtip under it and then flip it over. This would cause the gyro to tumble and the V1 to go out of control and crash. Some were also shot down but they were a small target and difficult to hit.
In early April of 1945, Group Seawolf consisting of six IXC snorkelers was launched by Adm. Doenitz against the US east coast with orders to \"...attack ruthlessly and with determination\". This operation served no strategic purpose as the war at that time was almost over for Germany. However Allied intelligence had information Seawolf might be attempting an attack on New York with V1s or V2s. (This later turned out to be not true - none of the subs were carrying this type of weapon.) A huge defensive measure (Operation Teardrop) was mounted which included the escort carriers Bogue, Card, Croatan, and Mission Bay and scores of DEs in an effort to intercept these subs.
On April 15, U-1235 and U-880 were detected and sunk by the DEs. U-518 was sunk on 21 April. On the morning of the 23rd the DE USS Frederick C. Davis detected U-546 and was closing to launch a hedgehog attack when she was struck by a torpedo from the sub, broke in half, and sank. In the ensuing battle with the DEs, U-546 was sunk later that day. U-881 had been sent out on 8 April to join the original six boats but was detected and sunk on 6 May. The remaining two boats were never found.This was the last big sub battle off the US east coast.
Don B</HTML>
| Subject | Written By | Posted |
|---|---|---|
Tesla, inventor of ASDIC
|
Fin Bonset | 12/08/2000 06:57PM |
|
RE: Tesla, inventor of ASDIC
|
Rainer Bruns | 12/08/2000 09:24PM |
|
RE: Tesla, inventor of ASDIC
|
Don Baker | 12/09/2000 05:04PM |
|
RE: Tesla, inventor of ASDIC
|
Fin Bonset | 12/11/2000 12:44PM |
|
RE: Tesla, inventor of ASDIC
|
Roy Prince | 12/08/2000 10:01PM |
|
RE: Tesla, inventor of ASDIC
|
Craig McLean | 12/09/2000 01:36PM |
|
RE: Tesla, inventor of ASDIC
|
Leon C. Gall | 12/10/2000 04:51PM |
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RE: Tesla, inventor of ASDIC
|
Fin Bonset | 12/11/2000 12:46PM |
|
RE: Tesla, inventor of ASDIC
|
Joe Brennan | 12/09/2000 07:55AM |
|
RE: V-1 propulsion
|
kurt | 12/09/2000 10:04PM |
|
RE: Ram Jets and Pulse Jets
|
Don Baker | 12/10/2000 12:21AM |
|
RE: Tesla, inventor of ASDIC
|
Gudmundur Helgason | 12/11/2000 09:20AM |
|
RE: Tesla, inventor of ASDIC
|
Fin Bonset | 12/11/2000 12:50PM |