Luftwaffe and Allied Air Forces Discussion Forum  

Go Back   Luftwaffe and Allied Air Forces Discussion Forum > Discussion > The Second World War in General

The Second World War in General Please use this forum to discuss other World War Two related subjects not covered by the main categories.

Thread Tools Display Modes
Old 29th January 2006, 21:02
Klaus Schiffler Klaus Schiffler is offline
Join Date: Dec 2004
Posts: 37
Klaus Schiffler
Invention of Radar

In the book Hitler's Scientists: Science, War, and the Devil's Pact by John Cornwell there is a chapter devoted to Radar whereby the author claims that the first experiments using radio location were done in the mid-1930s. He cites Robert Page of the U.S. constructing a radar device in December 1934. Robert Watson-Watt is claimed to have pioneered radar in February 1935. Cornwell gives credit to Germany constructing radar in March 1935. If Cornwall had done his homework, he would have consulted David Pritchard's book The Radar War: Germany's Pioneering Achievement 1904-45.

Pritchard is the first author, I believe, to give credit for the invention of radar to Christian Hülsmeyer whom he gives the title of The Father of Radar. Hülsmeyer built a primitive radar system in 1904 in Düsseldorf which was reported at the time in the 18 May 1904 edition of the Kölnischer Zeitung. He approached the German Navy for financial
assistance but Admiral von Tirpitz was not interested. He received a patent for his discovery on 30 April 1904 in Germany. He also received a patent in England.

Since Germany lost all her rights to any patents prior to and during WW I by the Versailles Treaty, it can be credibly stated that Germany had no patent to radar and that the patent granted to Watson-Watts in 1935 makes him the "inventor" of radar as stated in mosthistory books.

Did Watson-Watts use information in the 1904 patent to construct his own radar device? This would easily have been available to him.
Reply With Quote
Old 30th January 2006, 00:59
ArtieBob ArtieBob is offline
Senior Member
Join Date: Dec 2004
Location: Sharps Chapel, TN USA
Posts: 442
ArtieBob will become famous soon enough
Re: Invention of Radar

The US Navy was detecting aircraft with radio waves in the late 1920s. As this effort was accomplished by a US Government agency, I am not certain that any effort was made to patent the device. However, this work basically continued unbroken and there is a German paper in 1936 refering to Doppler radar research being performed by GE in the USA. For the Germans to have known about it, it seems probable that it had been progressing for some time prior to their becoming aware of it. I believe that the USA work was entirely independent of anything happening in GB or Europe during that period. It was not untill later that GB and USA pooled their efforts in this field. I believe that most USN capital ships were equipped with radar for detection and gun laying well before WWII.

Best regards,

Artie Bob
Reply With Quote
Old 30th January 2006, 22:19
edwest edwest is offline
Alter Hase
Join Date: Dec 2004
Posts: 4,612
edwest is an unknown quantity at this point
Re: Invention of Radar

Here is a link to a discussion forum about radio and radar that should help:

You may also want to locate the German language books by Fritz Trenkle on this subject.

In English, there is an excellent book entitled "GEMA: Birthplace of German Radar and Sonar" by Harry von Kroge. You can view it at The back cover writing is especially enlightening, and the contents list can be seen as well.

Usual disclaimer,

Last edited by edwest; 31st January 2006 at 18:21.
Reply With Quote
Old 31st January 2006, 21:43
Nick Beale's Avatar
Nick Beale Nick Beale is offline
Super Moderator
Join Date: Dec 2004
Location: Exeter, England
Posts: 5,854
Nick Beale has a spectacular aura aboutNick Beale has a spectacular aura aboutNick Beale has a spectacular aura about
Re: Invention of Radar

The way the story is usually told, Watson-Watt was actually asked to investigate the possibilty of using radio waves to damage or destroy aircraft (was a "death ray" feasible, in fact) and in responding to that enquiry from the government, it came up that radio waves were disturbed by aircraft. After that, the issue of detection was followed up.

IIRC from pritchard's book, Hülsmeyer's device was intended to give a proximity alert to ships in fog by sounding a klaxon. It wasn't, in 1904–05 giving ranges and bearings. Quite an achievement nonetheless.

I think that the cathode ray tube was invented around the same time, so sooner or later someone was going to bring the two ideas together, I guess.
Nick Beale
Reply With Quote

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Foundation for German communication and related technologies rob van den nieuwendijk Luftwaffe and Axis Air Forces 3 4th May 2007 23:57
crashed Ju188 D2 in Poland - help Andyf Luftwaffe and Axis Air Forces 24 21st December 2005 11:39
Radar Informationed needed...AN/APS-4 and AN/APS-6 Waldo.Pepper Allied and Soviet Air Forces 14 21st December 2005 10:37
Soviet Night Fighters with Radar Equipment Michal Allied and Soviet Air Forces 0 2nd October 2005 15:10
LW radar organisation in the West Jérémie Tarpon Luftwaffe and Axis Air Forces 7 21st June 2005 17:25

All times are GMT +2. The time now is 18:33.

Powered by vBulletin® Version 3.7.2
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Copyright ©2004 - 2018,