what makes the b-2 stealth work and why is it so freakin sweet?
597459
It was a well thought,well designed aircraft that absorbed\nradar waves.\nThe blended wing and fuselage design made it less reflective overall. The coating is absorptive and the quarter wavelength thickness makes the incident and reflective waves being canceled out each other.It's composite material is absorptive to radar waves.\nHeat emission is minimum since it is shielded and mixed with cold air outside. So the infrared detection is difficult.\nIt is so sweet because it is battle field proven,it works.\nThe B-2 's radar cross section is minimum that makes B-2 very useful and practical.It is radar elusive and evading.
486100
Missiles use passive IR/UV sensors. The missiles look for the infrared light (heat) produced by the target airplane's engines and track the airplane by following that light. The missiles also identify the UV "shadow" of the target and use that identification to distinguish the target from other heat-producing objects.\n\nIf you have read about motion detectors, you know that motion-sensing lights use passive infrared sensors. The sensors in a motion-sensing light are tuned to the temperature of a human being. They look out at the world, and when they see a sudden change in the amount of infrared light they are sensing, they assume it's because a person walked into the area, and they turn on the light.\n\nA motion-sensing light needs only one sensor. A Stinger missile needs a whole array of them, because its job is to track the target while it is flying. The nose of a Stinger missile has, essentially, an infrared digital camera in it. This camera might have an array of anything from 2x2 (in older designs) to 128x128 (in the newest Sidewinder design) infrared sensors that receive an infrared image of the scene. When the soldier gets ready to launch the missile, the missile must have the target visible in roughly the center of this sensor.\n\nWhile the missile is flying, the image of the airplane that it is trying to hit may become off-center on the image sensor. When it does, that tells the missile that it is off-course, and the guidance system in the missile has to decide how to get back on course. This is where proportional navigation comes in. The missile looks at the angle of off-centeredness and changes its angle of flight proportionally. In other words, it uses a multiplier. If the multiplier is 2, then if the guidance system thinks it is 10 degrees off course, it will change its flight direction by 20 degrees. Then, a tenth of a second later it will look at the angle again, and change again. By over-correcting this way, it lets the missile anticipate the path of the moving plane in the same way that you anticipate the path of a moving object. If you are a quarterback trying to throw a ball to a receiver running across the field, you would not throw the ball toward where the receiver is -- you would throw it toward where he will be when the ball arrives.\n\nObviously, the guidance system is more involved than this. The image sensor is riding on a rotating, gyrating missile at Mach 2, and it is trying to hit a small target that may be flying at Mach 1. It is not a simple problem. But this is the general idea.
592571
B-1 Mission Capabilities:  With its speed and maneuverability, the B-1 can penetrate low- to medium-risk threat areas and easily integrate into composite force packages.With three weapons bays, the B-1 is capable of mixed weapons loads,providing multiple target coverage from the same delivery platform.  The B-1’sperformance is optimized for low-altitude, high-speed flight using a mode that permits automatic terrain-following flight, making all weather, nightintrusions into enemy territory possible if the situation demands low-altitudepenetration.  As a result of the Nuclear Posture Review, B-1s are no longer tasked to perform nuclear missions.The B-1 operates in the high subsonic or supersonic speeds from 200feet (terrain following) to mid-30,000 feet range.\n\nB-2 Mission Capabilities: The B-2 employs low observable technology to penetrate medium to high threat enemy air defenses, holding high value targets deep inside an adversary’s territory at risk.  B-2 LO capability enables warfighting CINCs to task the B-2 to attack high value targets early in the campaign to destroy anddisrupt enemy air defense and C2 networks and assist in halting enemyforces.The B-2 operates in the high subsonic region at altitudes varying from200 feet (terrain following) up to 50,000 feet to employ all weather GPS guidedweaponry.\n\nB-52 Mission Capabilities:  The B-52H aircraft continues to fulfill the primary role of a conventional and nuclear standoff weapons carrier, with a secondary mission of delivering firepower in a low threat environment.  The B-52 carries the most diverse payload of all the bombers. Situational awareness upgrades will allow the B-52 to continue to employlong-range cruise missiles outside threat ranges, and permit employment of shorter-range missiles and direct attack munitions in air superiority/supremacy environments. \n\n Based on current operating procedures, attrition models, and service lives, the total bomber inventory is predicted to fall below the required 170 aircraft fleet by 2037.
201530
Attach a falcon to the prototype.. Think it will fly high! :-)
952996
my grandfather worked in area 51 for 3 years. my own grandma didnt even know it until after he died. the secrets run deep out there, but what she figured out was they were testing experimental aircraft. the secrecy is for our national security. my grandfather designed electrical blueprints for aircrafts. the stealth bomber was one of his "projects".
221571
Very Nobel interest. If you can build it then let me know. Here are the tips from me. Use FM band to for the controls, if you can have a digital control system then you can operate that with a high and low pulse from the ground. And if its a toy plane then there shouldn't be more then 3 or 4 controls which should be easier to design. contact me let me know the further update on your this project and any assistance.
616896
Area 51 is a secret Air Force base in southern Nevada.  What the other posters have said is correct.\n\nArea 51 has a REPUTATION, deservedly so, because from the early 1960's to the early 1990's, very secret aircraft were used and developed there.  Throughout the 1960's and 1970's, the SR-71 Blackbird aircraft (which flew above 60,000 feet at Mach 2.3) flew reconaissance missions, especially over the Soviet Union.  The Blackbird was so fast it could OUTRUN surface-to-air missiles.\n\nThe F-117 Stealth fighter was tested and proven in Area 51 as was the B-2 Stealth bomber.  These are very important technolgical advances, two important reasons we won the cold war.\n\nSo for a very long time is was a secret, legendary airbase for top secret aircraft.  The government isn't going to take you on a tour and show you that there are no martians or flying saucers there, so rumours have flourished.\n\nIn the mind of a gossip, these things merge into fascinating forms.  A brillian rumor is that there is a succssfor for the SR-71 Blackbird, the Mach 6 "Aurora" aircraft, and that when people see UFO's in the western US, this is what they are seeing.  There was a good "X Files" episode on this theme, too.
687613
stick with the foam 3D decoy.  the 2D is a gimmick.
590426
A beam of laser light is shined on the target either by a ground unit in the area or by the aircraft which is targeting the place you want to bomb, then when the bomb is dropped it 'sees' the reflected laser light and maneuvers towards it with great precision (usually) by manipulating small movable fins on the bomb itself which guide it towards the intended target. BOOM, it's Miller time.
936113
I'm on a destroyer and we have had our CIWS train on seagulls before.  Ha!  Yours is probably a Block 1B or greater, and has probably had some software upgrades that will enable it to track objects that small.  When you consider that it's designed to counter antiship cruise missiles (the nose-on aspect of which is only slightly larger than a mortar round) you shouldn't have much to worry about as far as the radar.  From my experience though, it's a really buggy system especially if you have the pneumatic drive vice the hydraulic system.  You get 4500 rounds a minute, but the tradeoff is less reliability.  What's more important?  Keep your head down out there, dude.
1054442
Back in the 60's? We used to see those blimp things a lot then (airships they call them now) the army and air-force used them a lot for paratroop training and weather observation. They were very quiet unless you were directly under one. When they turned away from you they just disappeared because of the optical effect of the skin they were made from, plus they were mostly grey so they blended into the clouds very easily. We lived near a base where they flew three of them from and they often seemed to disappear (sometimes as you were watching them!). This would be my guess!
789340
Doorbells, i can't use them.  They scare the hell out of me, i know it sounds ridiculous.  I can jump out of a perfectly good plane to go skydiving, but i can't ring a doorbell.  I can't explain it either, its just always bugged me.
859754
No active US base anywhere in the world, other than testing facilities "classifies" what type of aircraft operate there...\n\nB-52's fly missions to Iraq and Afganistan out of Diego Garcia.  B-2's do stop-overs there as well.  The airstrip is huge, one of the world's longest.\n\nThere is a British "embassy" on the island as it is a protectorate of the British Empire.\n\nThere are also military supplies (ammunition, etc.) stored here in case they are needed in some remote spot
478008
called a rebreather and it circulates your air and scrubbs it clean so you have air to breathe , closed loop system. its a large backpack thing and it requires special training. james bond thing is cool but non existent.
857373
B-2 Bomber are designed to fly higher in order not to be detected by radar, hit by missiles and attacked by enemy planes.
563463
The concept behind the stealth technology is very simple. As a matter of fact it is totally the principle of reflection and absorption that makes aircraft "stealthy". Deflecting the incoming radar waves into another direction and thus reducing the number of waves does this, which returns to the radar. Another concept that is followed is to absorb the incoming radar waves totally and to redirect the absorbed electromagnetic energy in another direction. What ever may be the method used, the level of stealth an aircraft can achieve depends totally on the design and the substance with which it is made of. \n\nRAS \nRAS or Radar absorbent surfaces are the surfaces on the aircraft, which can deflect the incoming radar waves and reduce the detection range. RAS works due to the angles at which the structures on the aircraft's fuselage or the fuselage itself are placed. These structures can be anything from wings to a refueling boom on the aircraft. The extensive use of RAS is clearly visible in the F-117 "Night Hawk". Due to the facets (as they are called) on the fuselage, most of the incoming radar waves are reflected to another direction. Due to these facets on the fuselage, the F-117 is a very unstable aircraft.\n\nThe concept behind the RAS is that of reflecting a light beam from a torch with a mirror. The angle at which the reflection takes place is also more important. When we consider a mirror being rotated from 0o to 90o, the amount of light that is reflected in the direction of the light beam is more. At 90o, maximum amount of light that is reflected back to same direction as the light beam's source. On the other hand when the mirror is tilted above 90o and as it proceeds to 180o, the amount of light reflected in the same direction decreases drastically. This makes the aircraft like F-117 stealthy. \n\nRAM \n\nRadar absorbent surfaces absorb the incoming radar waves rather than deflecting it in another direction. RAS totally depends on the material with which the surface of the aircraft is made. Though the composition of this material is a top secret. The F-117 extensively uses RAM to reduce its radar signature or its radar cross section. \n\nThe RAS is believed to be silicon based inorganic compound. This is assumed by the information that the RAM coating on the B-2 is not waterphttp://www.totalairdominance.50megs.comroof. This is just a supposition and may not be true. What we know is that the RAM coating over the B-2 is placed like wrapping a cloth over the plane. When radar sends a beam in the direction of the B-2, the radar waves are absorbed by the plane's surface and is redirected to another direction after it is absorbed. This reduces the radar signature of the aircraft. \n\nIR \n\nAnother important factor that influences the stealth capability of an aircraft is the IR (infrared) signature given out by the plane. Usually planes are visible in thermal imaging systems because of the high temperature exhaust they give out. This is a great disadvantage to stealth aircraft as missiles also have IR guidance system. The IR signatures of stealth aircraft are minute when compared to the signature of a conventional fighter or any other military aircraft. \n\nIf reducing the radar signature of an aircraft is tough, then reducing the IR signature of the aircraft is tougher. It will be like flying a plane with no engines. The reduced IR signature totally depends on the engine and where the engine is placed in an aircraft. \n\nEngines for stealth aircraft are specifically built to have a very low IR signature. The technology behind this is top secret like others in stealth aircraft. Another main aspect that reduces the IR signature of a stealth aircraft is to place the engines deep into the fuselage. This is done in stealth aircraft like the B-2, F-22 and the JSF. The IR reduction scheme used in F-117 is very much different from the others. The engines are placed deep within the aircraft like any ste
760624
Russian designers and Russian technology in general has over the years been vastly underestimated. In the west, especially the US over hype and promote their weapons systems as though they were a feature film! The Russian ministry of defence gives away very little and this has always been the case. I wouldn't be too surprised at what these systems can do. Also if they are showing these aircraft at parades and issuing them to stunt teams, just think about the weapons which will not show you!!!