{"id":3596,"date":"2011-02-20T15:11:33","date_gmt":"2011-02-20T19:11:33","guid":{"rendered":"http:\/\/www.divetalking.com\/?p=3596"},"modified":"2011-02-20T15:11:33","modified_gmt":"2011-02-20T19:11:33","slug":"dr-christian-j-lambertsen-layed-to-rest","status":"publish","type":"post","link":"https:\/\/www.divetalking.com\/?p=3596","title":{"rendered":"Dr. Christian J. Lambertsen layed to rest."},"content":{"rendered":"<div id=\"article_body\">\n<p>I tribute to a forgotten and perhaps an unknown hero.<\/p>\n<p>[singlepic id=123 w=320 h=240 float=]<\/p>\n<p>Christian J. Lambertsen, who as a medical student in 1939 invented a  revolutionary underwater breathing system used by the military in World  War II and who later helped coin the popular acronym to describe his  device and others like it &#8211; scuba &#8211; died of renal failure Feb. 11 at his  home in Newtown Square, Pa. He was 93.<\/p>\n<div id=\"body_after_content_column\">\n<p>In 1939, Dr. Lambertsem invented the <strong>L<\/strong>ambertsen <strong>A<\/strong>mphibious <strong>R<\/strong>espirator <strong>U<\/strong>nit, or <strong>LARU<\/strong> which was turned down by the military for its use.<\/p>\n<p>Dr. Lambertsen&#8217;s LARU let divers swim freely and stealthily. It used   pure oxygen and was a closed system. Equipped with a carbon dioxide   filter, it enabled the diver to re-breathe the air he exhaled while   underwater, which made the system bubbleless. Dr. Lambertsen built a rebreather.<\/p>\n<p>Prior to World War II, military divers wore heavy metal helmets that   pumped breathable air pumped down through hoses tethered to boats on the water&#8217;s   surface<\/p>\n<p>Then in 1952, Dr. Lambertsen and a colleague wrote a paper for the National  Academy of Sciences describing his &#8220;Self Contained Underwater Breathing  Apparatus,&#8221; which they shortened to scuba.<\/p>\n<p>After the Navy rejected his device at first, Dr. Lambertsen demonstrated  the LARU in the swimming pool of the Shoreham Hotel in Washington in  1942 to the Office of Strategic Services, the World War II predecessor  of the CIA.<\/p>\n<p>Not only was the OSS impressed with the invention, the nascent spy  agency saw great potential in the young medical student, who was also an  experienced diver.<\/p>\n<p>After he graduated from medical school in 1943, Dr. Lambertsen joined  the Army Medical Corps and was recruited to the OSS.<\/p>\n<p>He helped train members of a newly formed OSS maritime unit in the use  of his underwater breathing system in the pool at the U.S. Naval Academy  in Annapolis.<\/p>\n<p>One of the men Dr. Lambertsen trained was able to swim more than a mile  underwater in the Potomac River and remain submerged for 48 minutes.<\/p>\n<p>Dr. Lambertsen&#8217;s device was further tested in Operation Cincinnati, in  which OSS swimmers clandestinely infiltrated the heavy defenses of the  U.S. Navy harbor at Guantanamo Bay, Cuba, and blew up an old barge.<\/p>\n<p>The mission was a resounding success, a top-secret government report  later concluded, because &#8220;Navy sound detection gear did not reveal the  presence of underwater swimmers.&#8221;<\/p>\n<p>Dr. Lambertsen was deployed during World War II to Burma, where he  worked with OSS units on underwater infiltration and espionage missions.  Maj. Gen. William J. Donovan, the leader of the OSS, awarded him the  Legion of Merit.<\/p>\n<p>After the OSS was disbanded in 1945, Dr. Lambertsen arranged to  demonstrate LARUs to the different military branches.<\/p>\n<p>In 1948, he began training the Navy&#8217;s elite underwater demolition teams,  the precursor of the Navy SEALs, to use the system.<\/p>\n<p>During one training exercise near St. Thomas in the U.S. Virgin Islands,  Dr. Lambertsen and another swimmer made the first exit and re-entry  from a submarine.<\/p>\n<p>In the 1950s and 1960s, collaborating with the J.H. Emerson Co., Dr.  Lambertsen developed an advanced version of his underwater breathing  system. It was used by Navy special operations units until the 1980s.<\/p>\n<p>In 2009, Dr. Lambertsen received the distinguished service award from  the OSS Society, which honors the old intelligence service.<\/p>\n<p>Presenting the award, Adm. Eric Olson, commander of the U.S. Special  Operations Command, said Dr. Lambertsen and his LARU enabled the OSS to  conduct &#8220;previously impossible missions.&#8221;<\/p>\n<p>Christian James Lambertsen was born May 15, 1917, in Westfield, N.J. He  graduated in 1938 from New Jersey&#8217;s Rutgers University.<\/p>\n<p>He conducted his first experiments on underwater breathing systems  during vacations to the Jersey shore, using contraptions rigged with  hoses and a bicycle pump.<\/p>\n<p>His prototypes evolved during medical school, and he made a major  breakthrough by adding carbon dioxide filters from anesthesia equipment.<\/p>\n<p>In 1943, Jacques Cousteau and another French diver invented an improved  scuba system called the &#8220;Aqua-Lung,&#8221; which let swimmers dive deeper and  stay underwater longer.<\/p>\n<p>Dr. Lambertsen joined the medical faculty at the University of  Pennsylvania in 1946 and became a professor of pharmacology in 1952.<\/p>\n<p>His wife, Naomi Hill Lambertsen, died in 1985.<\/p>\n<p>Survivors include four sons, Christian J. Lambertsen Jr. of Chapel Hill,  N.C., David Lambertsen and Richard Lambertsen, both of Easton, Md., and  Bradley Lambertsen of Wallingford, Pa.; and six grandchildren.<\/p>\n<p>BIO:<\/p>\n<p><strong>Christian James Lambertsen<\/strong>, (born 15 May 1917, Died 11  February 2011) is an <a href=\"http:\/\/www.facebook.com\/pages\/w\/112463092102121\">American<\/a> <a href=\"http:\/\/www.facebook.com\/pages\/w\/108081399216900\">environmental<\/a> and <a href=\"http:\/\/www.facebook.com\/pages\/w\/115620028452400\">diving  medicine<\/a> specialist who was principally responsible for developing  the <a href=\"http:\/\/www.facebook.com\/pages\/w\/109978745694912\">United  States Navy<\/a> <a href=\"http:\/\/www.facebook.com\/pages\/w\/111609572199426\">frogmen<\/a>&#8216;s <a href=\"http:\/\/www.facebook.com\/pages\/w\/103119643061688\">rebreather<\/a>s  in the early 1940s for underwater warfare. It was the first device to be  called <a href=\"http:\/\/www.facebook.com\/pages\/w\/109536242405859\">SCUBA<\/a>.  The US Navy considers him to be &#8220;the father of the Frogmen&#8221;.<\/p>\n<p><strong>Education<\/strong><br \/>\nLambertsen  attended <a href=\"http:\/\/www.facebook.com\/pages\/w\/112452195432796\">Rutgers  University<\/a> in <a href=\"http:\/\/www.facebook.com\/pages\/w\/108188925868598\">New Brunswick,  New Jersey<\/a>, graduating in 1939 with a bachelor of science degree. He  graduated from medical school at <a href=\"http:\/\/www.facebook.com\/pages\/w\/112520115426955\">University of  Pennsylvania<\/a>, <a href=\"http:\/\/www.facebook.com\/pages\/w\/106057446092618\">Philadelphia<\/a>,  <a href=\"http:\/\/www.facebook.com\/pages\/w\/105528489480786\">Pennsylvania<\/a> in 1943.<\/p>\n<p>Lambertsen was awarded Honorary Doctor of Science Degree  from <a href=\"http:\/\/www.facebook.com\/pages\/w\/112331748780082\">Northwestern  University<\/a> in 1977.<\/p>\n<p><strong>Army career<\/strong><br \/>\n<a href=\"http:\/\/www.facebook.com\/pages\/w\/137846306244844\">Major<\/a> Lambertsen served in the <a href=\"http:\/\/www.facebook.com\/pages\/w\/106274569409921\">U.S. Army Medical  Corps<\/a> from 1944 to 1946 where he did a detached service in  underwater operations with the <a href=\"http:\/\/www.facebook.com\/pages\/w\/112453768765812\">Office of  Strategic Services<\/a> (OSS). After joining OSS, he was vital in  establishing the first cadres of U.S. military operational <a href=\"http:\/\/www.facebook.com\/pages\/w\/107797169240978\">combat swimmers<\/a> during late <a href=\"http:\/\/www.facebook.com\/pages\/w\/109429592416229\">World  War II<\/a>.<\/p>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>I tribute to a forgotten and perhaps an unknown hero.<br \/>\n[singlepic id=123 w=320 h=240 float=]<br \/>\nChristian J. Lambertsen, who as a medical student in 1939 invented a  revolutionary underwater breathing system used by the military in World  War II and who later helped coin the popular acronym to describe his  device and others like it &#8211; scuba &#8211; died of renal failure Feb. 11 at his  home in Newtown Square, Pa. He was 93.<\/p>\n<p>In 1939, Dr. Lambertsem invented the Lambertsen Amphibious Respirator Unit, or LARU which was turned down by the military for its use.<br \/>\nDr. Lambertsen&#8217;s LARU let divers swim freely and stealthily. It used   pure oxygen and was a closed system. Equipped with a carbon dioxide   filter, it enabled the diver to re-breathe the air he exhaled while   underwater, which made the system bubbleless. Dr. Lambertsen built a rebreather.<br \/>\nPrior to World &#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[40,32,31],"tags":[],"class_list":["post-3596","post","type-post","status-publish","format-standard","hentry","category-featured","category-reference","category-report"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.1 (Yoast SEO v27.4) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Dr. Christian J. 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