The Horten H.IX, RLM designation Ho 229 (often called Gotha Go 229 due to the identity of the chosen manufacturer of the aircraft) was a German prototype fighter/bomber designed by Reimar and Walter Horten and built by Gothaer Waggonfabrik late in World War II. It was the first pure flying wing powered by jet engines.
It was given the personal approval of German Luftwaffen Reichsmarschall Hermann Göring, and was the only aircraft to come close to meeting his “3×1000” performance requirements, namely to carry 1,000 kilograms (2,200 lb) of bombs a distance of 1,000 kilometres (620 mi) with a speed of 1,000 kilometres per hour (620 mph). Its ceiling was 15,000 metres (49,000 ft).
Since the appearance of the B-2 Spirit flying wing stealth bomber in the 1990s, its similarities in role and shape to the Ho 229 has led many to retrospectively describe the Ho 229 as “the first stealth bomber”. A static reproduction of the only surviving Ho 229 prototype, the Ho 229 V3, in American hands since the end of World War II was later tested by the US military who found the basic shape and paint composition of the mock copy would provide for 20% reduction in detection range against the Chain Home radar of the 1940s, but no significant stealth benefit against most other contemporary radar systems.
IMHO “stealth” was not intended, but rather accidentally implemented. Yet combination of a flying wing design and jet engines was a technological masterpiece, even more under circumstances in 1944 (lack of material, destroyed production facilities).
The Jumo 004 engines proved very reliable in static testing, running up to 100hrs between maintenance. But the materials were hardly available and so they had to use inferior ones for mass-production, causing time between maintenance to drop to only about 25hrs.
In 1947 pilot Kenneth Arnold saw nine “disc shaped” objects flying by Mt. Ranier. He estimated a speed of 1,200 mph.
The objects described by him were not “flying saucers” but resembled a flying wing very much like the Horten Ho 229 built in 1944. With it’s two jet engines it would have had a top speed of about 600 mph at 39,000 ft. The only prototype surviving WW2 was ferried to the US in 1945.
Journalists created “flying saucers” out of “disc shaped objects” and it seems that these objects were just some secret, unconventional planes.
ISPs report as few as 4% of new customers are signing up for government-mandated parental control filters.
Broadband customers are overwhelmingly choosing not to use parental-control systems foisted on ISPs by the government - with take-up in the single digits for three of the four major broadband providers.
KUALA LUMPUR — Former U.S. President George W. Bush and British ex-Prime Minister Tony Blair have been found guilty at a mock tribunal in Malaysia for committing “crimes against peace” during the Iraq war.
Typically, when you’re a top executive at a major corporation that is laying off more than 10 percent of your workforce, you say a few things to the newly jobless. Like “sorry.” Or “thank you for your many years of service.” Or even “we hate doing this, but it’s necessary to help the company survive.”
What you don’t do is bury the news of the layoffs in the 11th paragraph of a long, rambling corporate strategy memo.
And yet, this was Microsoft honcho Stephen Elop’s preferred method for announcing to his employees today that 12,500 of them were being laid off. (18,000 are being laid off companywide; Elop, the former head of Nokia, oversees the company’s devices unit, which was hardest hit by the layoffs.)
How bad was Elop’s job-axing memo? Really, really bad. It’s so bad that I can’t even really convey its badness. I just have to show you.
Human Rights Watch documents ‘sting’ operations in report that raises key questions about post-9/11 civil rights
Northrop B-2 Spirit and Horten H.IX (Horten Ho 229)
Although I don’t like Nazis and their attitude, back in the late 1940’s german engineering was at it’s height. Wernher von Braun developing “reliable” rocket engines, Junkers and BMW developing “reliable” jet engines and the Horten brothers developing one of the first “stealth” bombers.
The Horten H.IX, later called Horten Ho 229, was build of a wooden frame with two Junker Jumo 004 jet engines, the same ones used in famous Messerschmidt Me262. Only three prototypes were built and flown, one of them captured by US troops. In recent years Northrop Grumman rebuilt the Ho 229 to test the radar cross-section and it showed up that this plane reduced the time of being detected by UK radar from 19 minutes before the coast to only about 8 minutes.
The requirements by the Nazis were 1000/1000/1000: 1000 kilometers of range, 1000 kilometer/hour speed and 1000 kilograms of capacity (in terms of weapons).
If that plane would have entered mass-production (together with more advanced V2 rockets) we’d have a massive problem today!
The Horten Ho 229 was years ahead of it’s time, as well as jet engines and rockets… I won’t think of the world we’re living in, if the Nazis had prevailed.
Rolls Royce Trent 900 Jet Engine Blade-Off Test
The Trent 900 is used in the Airbus A380 together with Engine Alliance GP7200.
This test shows that jet engines on modern planes are the most safe parts. It is more likely that electronics/computers fail, causing a catastrophic crash.
After the crash of Malaysian flight MH17 over Ukraine, most german mass media demand more money for militarization and a more confrontational course towards Russia.
Logical question is: Why would Russia support the downing of a civil plane? It only gives them disadvantages and more problems internationally. They won’t profit from this event. On the other hand, the NATO allies now have a reason to increase their military budgets and to blame Putin for the deaths of 298 innocent people. The US/UK are now able to pressure Germany and France to impose more sanctions on Russia or even to cut their economic relations. Something is wrong with this incident…