WW2 German stealth fighter rebuilt

[Swoop]

http://news.nationalgeographic.com/news/2009/06/090625-hitlers-stealth-fighter-plane.html

[nipper]

They're going to have to widen that door to get it out.

[Denholm]

No, I don't think so.

[Nefarious]

The Wings fold up...

[stroker71]

That's pretty!  Heard it was going to be added in 2 weeks too!!!! WOOOT

DuHasst

[Captfish]

I told you Batman was real! he's gonna be upset they painted german markings all over his Bat Jet. 

[moot]

[Sabre]

Watched an interview with the producer, and have to say that he's poorly informed in at least one regard.  Specifically, he stated that the US was not working on anything remotely similar until the 1970's, but that is patently false.  Jack Northrup began working on a flying wing concept much earlier.  In fact, his multiengine flying wing bomber was in competition with the B-36, well before the 70's.  It lost out. Stated reason as I recall was a concern about stability; this was before the fly-by-wire technology that aids the F117 and the B-2 pilot in controlling their aircraft.  However, my dad (retired aerospace defence contractor that actually saw the Northrup flying wing during test flights) believe it was just too radical looking for the USAF bomber mafia.

The 229 would have been a pilot killer, as it also would have suffered from some serious stability issues.  The flying wing design's primary draw at the time was not stealth, but fuel efficiency and payload capacity.  However, it certainly would have been more stealthly than it's comtemporaries.  Had they had stealth in mind (and understood it as we do today), they would have had metalized the cockpit and burried the engines in the wings (snaking or baffling the intakes to prevent specular reflection off the engine face).  The intakes and the cockpit are the most broadly EM scattering features.  Doing that would have reduced the radar scross section by 50% over it's contemporaries, instead of the 20% estimated from the testing they did on this model.

[Jenks]

I seem to recall them saying in the show that Northrop had been designing flying wings BEFORE the german brothers. What was their name? Started with an H.   

Also, it did kill its test pilot when an engine flamed out.(according to the show)

And, I read that the Air Force loved the idea of the flying wing. However the stability problem was just too much to overcome. I guess if you stalled the thing at high speed you were toast.

[moot]

Cross-post from Toad..

Above and Beyond: Too Much, Too Soon

    * By General Robert L. Cardenas, U.S. Air Force (Ret.) As told to James P. Busha
    * Air & Space Magazine, July 01, 2009

In 1941, When it appeared that Britain’s battle against Germany might fail, the U.S. Army Air Forces called for a bomber that could fly 10,000 miles with a 10,000-pound payload. Northrop responded with the XB-35 Flying Wing; Consolidated offered the XB-36 Peacemaker.

In 1947, my boss, Colonel Albert “Bullet” Boyd, chief of the Army Air Forces Flight Test Division at Wright Field in Ohio, sent Glenn Edwards, Danny Forbes, and me—“los tres amigos”—to the barren California wasteland known as Muroc Army Air Field, along with civilian flight test engineer Richard Smith. We shared Danny as copilot. We had all the fun of flying, and Dick Smith had all the work of reducing our collected data into readable form.

The YB-49 demonstrated that putting jet engines on an airframe designed for piston engines made the aircraft faster but not better.

I was supposed to have flown the propeller-driven version of the Flying Wing, the XB-35. But I had told Colonel Boyd that any engineer who put a propeller on the trailing edge of a wing did not deserve his diploma. The air flowing over the top of the wing has a different temperature, velocity, and dynamic pressure than the air flowing under it, so those little propeller blades had to cut through two different air masses in microseconds, and the difference caused flutter.

The Army Air Forces decided the XB-35 needed jet engines, so Northrop converted two -35s to YB-49 all-jet Flying Wings. No. 42-102367 was instrumented for stability and control; no. 42-102368 was built for performance flight tests. In early 1948, my crew—copilot Danny and flight engineer William Cunningham—flew no. 368 from the Northrop factory in Hawthorne to Muroc to begin performance tests.

Early tests consisted of finding the best speed for takeoff, climb, stall, opening the bomb bay doors, and landing. Each test had its own set of problems—some minor, some that almost killed me. On my first takeoff, the airplane accelerated too rapidly, causing the gear doors to blow off. I could either pull the Flying Wing up at a high angle of attack on takeoff or pull back on the power and wait the 90 seconds for the gear to retract. The problem was that the jet-powered Wing was designed around the propeller-driven XB-35, which operated at slower speeds. Northrop had simply swapped prop engines for jets, and of course the speed of the aircraft increased.
After leveling off, I would be rocked back and forth in my seat in unison with the sloshing of the fuel that was stored behind me in a big rubber bag, with no baffles, buried in the wing. I tried opening the bomb bay doors—they were sucked right off.

Concerned about the upcoming stall tests, I consulted Paul Bikle, chief of the Flight Test Division’s performance engineering branch, who told me I would not get a clean stall with the YB-49—I’d get a wingtip stall. He said that unlike the airflow over a standard wing, air over the Flying Wing would be pushed sideways, or span-wise, and as the flow increased toward the tip, lift at the wingtip would rapidly decrease, causing the wing to pitch up. The split flaps were on the wingtips with the rudders, and he advised me that I might get a full wing stall if I were to trim the entire split flaps either up or down, rather than use the yoke.

Along with getting the Flying Wing to stall, I also got the ride of my life.

I leveled the YB-49 at 20,000 feet, pulled back on the throttles, and waited for it to stop flying. Because most of the shudder you get in a stall comes from the tail, not the wing, I knew I wouldn’t get a big shudder. Sure enough, when the tailless airplane quit flying, instead of the normal shudder just before the nose drops, I experienced a violent pitch forward into a negative-G tumble, which pulled my rear end out of the seat. In a microsecond, I realized that I had no aerodynamic flow over any control surface that would allow me to recover. It was as if you took a nice, crisp, clean dollar bill out and let it go; it would go spinning around its center. The engineers later called it a lateral roll and said I had encountered inertial coupling.

Fortunately, the throttles were mounted up above my head, not down on the console where they normally are. There were two handles, one for the four left engines and one for the four right, just an arm’s length away. I was able to grab the left throttle and apply full power, which caused the aircraft to cartwheel. I was thrown into an inverted spin—one thing I knew how to get out of. I recovered at about 800 feet. After I landed, I wrote a brief report: “This aircraft is never to be intentionally stalled.” Later that night, I went to Pancho’s Happy Bottom Riding Club for a drink.

On June 5, 1948, Glenn Edwards and Danny Forbes were killed at Muroc while flying YB-49 no. 368. It hit the ground upside down, so flat it didn’t have much of a sideways motion. The wing areas outboard of the engines were found 15 miles downstream. Colonel Boyd told me to finish the tests in the other airplane.

In the fall of 1948, I flew no. 367 in a series of stability and control tests. The YB-49 was beautiful—it was just like flying a fighter. But it was not a bomber, and it had many deficiencies: The biggest problem was that it was way ahead of its time, well before the advent of computers. The sensory and response capabilities of a human were too slow to keep up with the Flying Wing’s ever-changing dynamics. I’ve been accused of saying the YB-49 was unstable, but what I actually said was that it was marginally stable about all three axes and could go unstable at aft-center-of-gravity loadings. That’s why I would not sign off on the airplane. The YB-49 would have to wait for technology to catch up.

In November 1948, I briefed Air Force generals about my concerns. In the audience was Jack Northrop. After I spoke, he stood and said, “I have the highest regard for Major Cardenas and his abilities as a test pilot. Obviously I have not been kept informed.” He looked at the people he brought with him. “It looks like Northrop has a lot of work to do,” he said. An engineer in the audience said, “You have an impossible task,” to which Mr. Northrop replied, “General, I’m surprised you have people in your employ who think the impossible really is impossible.” That sort of broke up the hearing.

On February 9, 1949, I was ordered to fly the YB-49 to Andrews Air Force Base, near Washington, D.C., for President Harry Truman’s air power demonstration. We flew nonstop to Andrews in four hours and 20 minutes, setting a transcontinental speed record. President Truman inspected the Flying Wing and even climbed up in the cockpit. While I was showing him the interior, he turned to me and said, “Looks pretty good to me, son. I think I’m going to buy some.” I bit my tongue and just smiled. The president asked the chief of the Air Force, “Why don’t you have this young whippersnapper fly this down Pennsylvania Avenue at treetop level? I want the people to see what I’m going to buy.” I knew my boss was never going to order me to fly a huge experimental aircraft at treetop level over the heart of the nation’s capital.

Well, he did.

As I dodged radio towers, I lost track of Pennsylvania Avenue along the way. I never realized how heavily forested Washington was. All the trees made it very hard to see straight ahead  as I roared low over the city. Toward the end of my flight I thought I was in the clear—until the big white dome of the Capitol filled my canopy. I abruptly pulled up to avoid smashing into it.

General Boyd sent Major Russ Schleeh out to spot-check some of the flight data that Glenn and I had collected. After Russ made three flights in the Wing, he confirmed our data points and concurred with our thoughts on the YB-49. On a later flight attempt, the nose gear collapsed out on a Muroc lakebed, destroying the last of the test aircraft and almost killing Russ. That ended the program.

Robert Cardenas retired from the U.S. Air Force after 34 years of service.
A police detective lieutenant by day and an aviation writer by night, Jim Busha takes frequent breaks in his 1943 Aeronca L-3.

[Captfish]

This aircraft, the first true flying wing produced in the United States, was developed during 1939 and 1940, and first flew on 3 July 1941 at Baker Dry Lake in California. Unstable and underpowered, but basically sound, the N-1M paved the way for Northrop's later flying wings

[Ack-Ack]

Also have a few pictures of it flying, just have to find them.


ack-ack

[Selino631]

well, when u see in the news "UFO SIGHTING" we'll all know what it is lol


I saw a show on The History Channel awhile back about this plane, it the germans ever completed the Atomic Bomb that they were reaserching they would have made a larger scale version of this plane equipt to carry the bomb and extra fuel, and it was intended to fly a non-stop flight from Germany to New York City to deliever its payload.


Thanks for posting Swoop, this is very intresting 

[DiabloTX]

This should be added to the planeset IMMEDIATELY!1!!1!1oneoenoneeleventyone!1

[jay]

when it comes out people in 262's will freak