tag:para-rigger.posthaven.com,2013:/posts The Para-Rigger 2018-06-14T15:00:02Z tag:para-rigger.posthaven.com,2013:Post/1293982 2018-06-14T15:00:01Z 2018-06-14T15:00:02Z Hey Hitler, Tojo - Union Pacific's Big Boy Is Not A Hamburger

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tag:para-rigger.posthaven.com,2013:Post/1293879 2018-06-14T03:57:19Z 2018-06-14T03:57:19Z Dorothy Sayers - A Reluctant Prophet
Dorothy Sayers - the all-time best mystery writer in the history of the known universe.  I must have fallen in love with her as a teenager; she introduced me to change ringing and the fens via Lord Peter Wimsey and The Nine Tailors.  I had no idea, of course, that she was responsible for the fall of Singapore.  
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tag:para-rigger.posthaven.com,2013:Post/1293361 2018-06-12T16:49:11Z 2018-06-12T16:49:11Z Mythical Creatures And Greek Gods Leap From Waves

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tag:para-rigger.posthaven.com,2013:Post/1292945 2018-06-11T13:46:12Z 2018-06-11T13:46:12Z Journey through the center of the earth

https://www.forbes.com/sites/startswithabang/2018/06/07/could-we-create-a-bottomless-pit-on-earth/

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tag:para-rigger.posthaven.com,2013:Post/1292878 2018-06-11T09:46:14Z 2018-06-11T09:46:15Z Special Delivery

Image result for susie clemens
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tag:para-rigger.posthaven.com,2013:Post/1292448 2018-06-09T20:46:29Z 2018-06-09T20:46:30Z Prime number portraits

http://www.pinchofintelligence.com/painting-by-prime-number/

See also, the Corpus Christi Prime:
https://friendlyfieldsandopenmaps.com/2017/09/08/the-corpus-christi-prime/

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tag:para-rigger.posthaven.com,2013:Post/1292301 2018-06-09T11:24:17Z 2018-06-09T11:24:17Z The New Yorker: Looking For Life On A Flat Earth

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tag:para-rigger.posthaven.com,2013:Post/1292017 2018-06-08T15:58:37Z 2018-06-08T16:10:10Z The US's Most-Decorated Warship
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http://www.businessinsider.com/us-navy-most-decorated-warship-sub-uss-parche-used-for-spy-missions-2018-6
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tag:para-rigger.posthaven.com,2013:Post/1291549 2018-06-07T04:38:04Z 2018-06-07T04:38:05Z Veterans on both sides talk about D-Day ]]> tag:para-rigger.posthaven.com,2013:Post/1291436 2018-06-06T20:58:30Z 2018-06-08T13:57:20Z Some Classics, Some New Photos of Operation Overlord
Image result for peanuts cartoon :snoopy wading ashore D-Day
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tag:para-rigger.posthaven.com,2013:Post/1289438 2018-05-31T10:33:10Z 2018-05-31T10:33:10Z How Does Big Ben Keep The Time?

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tag:para-rigger.posthaven.com,2013:Post/1289371 2018-05-31T03:39:33Z 2018-06-02T19:11:40Z The ladder that can't be moved ]]> tag:para-rigger.posthaven.com,2013:Post/1288695 2018-05-29T11:02:37Z 2018-05-29T11:02:38Z The Great Waikiki SPAM-Jam!

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tag:para-rigger.posthaven.com,2013:Post/1287611 2018-05-26T03:55:26Z 2018-05-26T03:55:42Z New York City in Ultra HD 12K ]]> tag:para-rigger.posthaven.com,2013:Post/1285630 2018-05-20T17:16:18Z 2018-05-20T17:21:48Z Take A Look Inside A U-Boat



  httpwwwwarhistoryonlinecomwp-contentuploads201606boat-1jpg The U-Boat War The Battle of the Atlantic was a vital arena of the Second World War. A protracted campaign that lasted for most of the war, German vessels tried to sink Allied supply ships. By far the most effective tools were the U-boats, the German submarines.It was a campaign shaped by intelligence gathering and by repeated misjudgments on both sides.Focus on Surface VesselsThe first mistake had happened before the war began.Both sides believed the way to stop merchant shipping was heavily armed surface vessels. Restrictions on German naval armament concentrated on these, rather than on U-boats. Similarly, Hitler focused on building the most impressive ships possible, leading to battleships such as the Bismarck.U-Boat PoliticsThe politics behind the scenes of the Nazi regime played into this. Admiral Dönitz, Commander-in-Chief of the U-boats, pressed for more of U-boats to be built. Admiral Raeder, the overall Commander-in-Chief of the German Navy, was more interested in surface ships. They were both competing for resources with the prestigious Luftwaffe.As a result, in 1939 Dönitz lacked the U-boats he needed to dominate the Atlantic and halt British shipping.a                                        hrefhttpswwwgoodfreephotoscomrelnofollowPhoto CreditaSeamen raise the White Ensign over a captured German U-boat in World War II. ConvoysSome in Britain remembered the threat U-boats had posed in the previous war. Winston Churchill, as First Lord of the Admiralty, asked for information on how many U-boats the Germans had. Fearing attacks on shipping, the Admiralty swiftly set up a convoy system, to enable ships to provide support and protection for each other.Hunter-Killer GroupsEager for battle, the Royal Navy set up hunter-killer groups, teams of ships assigned to chase down U-boats.It proved much less effective than they had hoped. They did not have radar good enough to detect U-boats at a distance. Insufficient aircraft and escort boats also hampered their operations. As they chased around the ocean, the U-boats slid past to attack convoys.httpwwwwarhistoryonlinecomwp-contentuploads201701torpedoed_merchant_ship-640x396jpgA U-boat shells a merchant ship which remained afloat after being torpedoed. Unknown date Forward BasesThe war on the ground helped the Germans at sea. The capture of Norway and western France gave them better access to the Atlantic Ocean. U-boats no longer had to sail from the Baltic through the British-controlled waters north of Scotland before reaching their hunting grounds. It saved time and meant there was less risk of being detected on the way.Control and DetectionU-boat efforts were initially helped and later hindered by central control.Dönitz maintained a system of tight control over the U-boats and their activities. In the early days, when convoys were short of escort vessels, it helped him make the most of any opportunities. Directing the U-boats using the knowledge of central command made them efficient, balancing the initial shortage of boats.It also had a downside. Central control meant regular radio contact. If the Allies detected those signals, they could tell where the boats were. At first, it was a price worth paying. After late 1942, when the Allies had learned to decrypt the signals, it meant they knew exactly where the U-boats were going. Central control went from being a benefit to a liability.The Submarine Tracking RoomAllied efforts to tackle the U-boats benefited hugely from the preparedness of the Royal Navy. The only arm of the British Military to take military intelligence seriously in the build-up to the war, the Navy set up a center specializing in intelligence gathering and analysis.Part of this was the Submarine Tracking Room. Led by Rodger Winn, this dedicated analytical center made incredible use of the available information. The Tracking Room became the mastermind behind the British submarine war.Enigma and EvasionOne of the most important sources of data for the Tracking Room was Ultra. It was a program of high-level intelligence analysis which decrypted the Enigma cipher, the system used to code Germany’s highest level communications.httpwwwwarhistoryonlinecomwp-contentuploads201701enigmas-640x275jpgA selection of seven Enigma machines and paraphernalia exhibited at the USA’s National Cryptologic Museum. By Robert Malmgren – CC BY-SA 3.0 There were different versions of Enigma, and the Allies did not break them all. When the system changed, they could be left in the dark for months on end. Those were the times when they suffered their heaviest losses to the U-boats.When Enigma could be cracked, it was hugely helpful.Having made the initial mistake of focusing on fighting the U-boats, the Allies shifted to avoiding them. Using Enigma information and Tracking Room analysis, convoys steered clear of the hunting grounds prowled by Dönitz’s packs of submarines.German Interception and Its LimitsThe Allies were not the only ones decrypting enemy codes. The German Beobachtungsdienst (B-Dienst), the radio monitoring service, quickly broke down the initial convoy code and the later Naval Cipher No. 3. It let them listen in on most signals about the convoys.The British Admiralty, unable to believe their codes had been cracked, took years to change the cipher. It was only in June 1943 that B-Dienst were shut out by a more secure cipher.httpwwwwarhistoryonlinecomwp-contentuploads201701bundesarchiv_bild_101ii-mw-4222-01a_-enigma-_auf_u-boot_u-124-640x426jpgEnigma radioman aboard U-124 March 1941. By Bundesarchiv – CC BY-SA 3.0 de Potential Air PowerOne of the great British errors in the Battle of the Atlantic came not from the Navy but the Royal Air Force (RAF).RAF Bomber Command was convinced the most efficient use of its planes was in bombing German industry. They refused to hand over the planes requested for use in the Atlantic. They could have been incredibly useful in protecting convoys and destroying U-boats. Instead, they were used in operations now believed to have been massively ineffective.An Ever-Shifting BalanceMany factors played into the ever-changing balance of power in the Atlantic. Intelligence gathering, technical innovation, political decisions, and ammunition supplies all played their part. Each side spent months at a time dominating, before being knocked down again by their opponent.Ultimately, the Allies prevailed, and vital supplies got through. They achieved victory but made as many misjudgments as their opponents along the way.Pictures – U-995German submarine U-995 was a German Type VIIC/41 U-boat of the Kriegsmarine. She was laid down on 25 November 1942 in Hamburg, Germany, and was commissioned on 16 September 1943 with Oberleutnant Walter Köhntopp being the commanding officer.At the end of the war on 8 May 1945, she was stricken at Trondheim, Norway and she was surrendered to the British.She was then transferred to Norwegian ownership in October 1948. In December 1952 U995 became the Norwegian submarineKaura until 1965 when she was stricken by the Royal Norwegian Navy. She was then sold for the symbolic price of one Deutsche Mark to Germany where, in October 1971, she became a museum ship at Laboe Naval Memorial.Many thanks to foto6x7.livejournal.com for this awesome gallery.6388863_origU-995 7535188_origU-995 8466160_origU-995 9463035_origU-995 4150136_origU-995 4448162_origU-995: the massive diesel engines 5547525_origU-995: Torpedo 1708772_origU-995: Close up of the torpedo loading mechanism 4568339_origU-995 824806_origU-995 Torpedo launch tubes Type VII was based on earlier German submarine designs going back to the World War I Type UB III and especially the canceled Type UG, designed through the Dutch dummy companyIngenieurskantoor voor Scheepsbouw den Haag (I.v.S).Which was set up by Germany after World War I in order to maintain and develop German submarine technology and to circumvent the limitations set by the Treaty of Versailles, and was built by shipyards around the world.1321150_origU-995 6743246_origU-995: Toilets 7843303_origU-995 Crew Quarters 6041678_origU-995: Door to the toilets 9248660_origThere wasn’t much space for the crew! 5230394_origRadio and map room  9620484_origRadios 8535500_origCaptains cabin? 5702729_origLooking toward the radio room 6928403_origLooking toward the radio room The Finnish Vetehinen class and Spanish Type E-1 also provided some of the basis for the Type VII design. These designs led to the Type VII along with Type I, the latter being built in AG Weser shipyard in Bremen, Germany.The production of Type I was cut down only after two boats; the reasons for this are not certain and range from political decisions to faults of the type.9812050_origNerve center of the U-Boat 8682217_origLooking up in the conning tower 8824486_origPersiscope 4885338_origLot’s of valves 7430798_origSteering the U-Boat 1847850_origI’m pretty sure that is not the coffee machine 9234716_origMap table 801746_origU995 main control area 9317222_origMain control area 5524575_origMain control area The design of the Type I was further used in the development of the Type VII and Type IX. Type VII submarines were the most widely used U-boats of the war and were the most produced submarine class in history, with 703 built. The type had several modifications.The Type VII was the most numerous U-boat type to be involved in the Battle of the Atlantic.1148457_origCrew quarters. 2314662_origCrew quarters 3894157_origCrew quarters 2327467_origThe galley 589223_origThe bog, again 766017_origEngine room 5846877_origMassive diesel engine 9329078_origEngine control. 3903828_origEngine control 90514_origU-995

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tag:para-rigger.posthaven.com,2013:Post/1284878 2018-05-18T14:42:27Z 2018-05-18T14:42:28Z Pan Am 1941...The Long Way Around

Image result for pan am clippers in honolulu
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tag:para-rigger.posthaven.com,2013:Post/1282709 2018-05-12T05:18:25Z 2018-05-12T05:18:25Z Bye, Bye, Blackbird!

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tag:para-rigger.posthaven.com,2013:Post/1282297 2018-05-11T03:21:59Z 2018-05-11T03:22:00Z Is Pluto a planet again?

https://www.sfgate.com/news/article/Yes-Pluto-is-a-planet-12893841.php

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tag:para-rigger.posthaven.com,2013:Post/1281570 2018-05-08T14:38:57Z 2018-05-08T14:38:57Z 1955 - America's Nuclear Reactor meltdown

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tag:para-rigger.posthaven.com,2013:Post/1281224 2018-05-07T04:27:46Z 2018-05-07T04:27:46Z The Nikola Tesla of cooking oil ]]> tag:para-rigger.posthaven.com,2013:Post/1281157 2018-05-06T23:30:05Z 2018-05-06T23:30:05Z Mama Polar Bear Avec Keikis

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tag:para-rigger.posthaven.com,2013:Post/1280675 2018-05-05T15:42:42Z 2018-05-05T15:42:43Z Some Wonderful Aerial Photographs

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tag:para-rigger.posthaven.com,2013:Post/1279695 2018-05-02T20:20:29Z 2018-05-02T20:20:29Z Teslas...From Start To Finish! And Thank Heavens They Aren't Called Edisons!
                                   http://www.youtube.com/embed/8 _lfxPI5ObM

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tag:para-rigger.posthaven.com,2013:Post/1279458 2018-05-02T10:04:30Z 2018-05-02T10:04:31Z Skyscraper Constructors

                           http://www.youtube.com/embed/7QCYDzsQ_yM?rel=0


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tag:para-rigger.posthaven.com,2013:Post/1279175 2018-05-01T16:22:07Z 2018-05-01T16:22:08Z Hearing Alexander Graham Bell's voice again, thanks to particle physics

https://spectrum.ieee.org/tech-history/dawn-of-electronics/particle-physics-resurrects-alexander-graham-bells-voice

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tag:para-rigger.posthaven.com,2013:Post/1278060 2018-04-29T00:33:30Z 2018-04-29T00:33:30Z The Negative Impact Of The #MeToo Movement

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tag:para-rigger.posthaven.com,2013:Post/1275765 2018-04-22T20:58:37Z 2018-04-22T21:07:17Z The Mighty...Mantis Shrimp!

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tag:para-rigger.posthaven.com,2013:Post/1274693 2018-04-19T19:04:02Z 2018-04-19T19:04:03Z The Saga Of Chris "Wildman" Magee Hero, Fighter Ace, Bank Robber

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tag:para-rigger.posthaven.com,2013:Post/1274137 2018-04-18T09:27:52Z 2018-04-18T09:27:52Z Some Really Bad-A-- Cucumber Harvesting Going On Here!
Image result for cucumber harvesting machinery 
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tag:para-rigger.posthaven.com,2013:Post/1274077 2018-04-18T01:17:52Z 2018-04-18T01:17:52Z Mussolini's 1:240 Model of Ancient Rome At Its Peak

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