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Stealth Is Echo Control Stealth does not mean the aircraft stops scattering radar. It means the shape tries to keep the strongest echo from going back to the radar that sent it. Of course theres the issue of absorbing material as well. Here a pulsed radar wave hits the... show more

Mathelirium

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16,685 次观看 • 4 个月前 •via X (Twitter)

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The B-2 Spirit in action! This giant of stealth technology is capable of penetrating enemy defenses without being detected by radar. Note the detail of the landing gear and the incredible engineering of this aircraft. 📹: cupula_3.0

The B-2 Spirit in action! This giant of stealth technology is capable of penetrating enemy defenses without being detected by radar. Note the detail of the landing gear and the incredible engineering of this aircraft. 📹: cupula_3.0

Aviation

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🇺🇸 The F-22 is the stealth king of fighter jets, but why does it have 2 thrust-vectoring nozzles instead of 3 like Russia’s Su-57? Because 3 nozzles require a round exhaust, and round shapes reflect radar straight back, making the jet easier to detect. The F-22 uses 2 flat, rectangular exhausts, which scatter radar waves away and help keep the jet stealthy. The trade-off: a bit less extreme maneuverability, but far better stealth, which is why it’s still one of the most advanced fighters in the sky. Source: Aviation Insider

🇺🇸 The F-22 is the stealth king of fighter jets, but why does it have 2 thrust-vectoring nozzles instead of 3 like Russia’s Su-57? Because 3 nozzles require a round exhaust, and round shapes reflect radar straight back, making the jet easier to detect. The F-22 uses 2 flat, rectangular exhausts, which scatter radar waves away and help keep the jet stealthy. The trade-off: a bit less extreme maneuverability, but far better stealth, which is why it’s still one of the most advanced fighters in the sky. Source: Aviation Insider

Mario Nawfal

210,276 次观看 • 6 个月前

🇺🇸 The B-2 “stealth bomber” is the only tailless bomber active in military service today, anywhere in the world. Why exactly is that? Well, a vertical tail acts as a reflector, bouncing enemy signals back like a mirror, and making them highly visible on radar. Engineers designing the B-2 made a radical decision: remove the tail entirely and accept the aerodynamic downsides that come with it. The B-2 instead relies on quadruplex-redundant, computer-controlled flight systems. Instead of a mechanical tail, computers make thousands of micro-adjustments per second to keep it stable. No human pilot could do this manually. But stability is the price worth paying for total invisibility. Source: Military Mind YT

🇺🇸 The B-2 “stealth bomber” is the only tailless bomber active in military service today, anywhere in the world. Why exactly is that? Well, a vertical tail acts as a reflector, bouncing enemy signals back like a mirror, and making them highly visible on radar. Engineers designing the B-2 made a radical decision: remove the tail entirely and accept the aerodynamic downsides that come with it. The B-2 instead relies on quadruplex-redundant, computer-controlled flight systems. Instead of a mechanical tail, computers make thousands of micro-adjustments per second to keep it stable. No human pilot could do this manually. But stability is the price worth paying for total invisibility. Source: Military Mind YT

Mario Nawfal

42,033 次观看 • 3 个月前

Trump has more to worry about! China has transferred its long-range YLC-8B anti-stealth radar to Iran, which can detect 5th gen, stealth fighter jets and B-2 bombers. Each radar system can detect targets up to 700 kilometres away. The YLC-8B is specifically engineered to counter stealth aircraft and ballistic missile threats through UHF-band low-frequency surveillance, undermining the effectiveness of radar-absorbent shaping used by platforms such as the F-35 Lightning II and B-2 Spirit. It’s also a compliment to the Chinese anti-stealth sensor JY-27A, that Iran already has. This tech transfer is part of the 25-year, China-Iran comprehensive strategic partnership agreement encompassing military tech exchange, joint exercises, and energy-for-security arrangements.

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Truth_teller 🇷🇺

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A towbarless aircraft tug is used to push an aircraft back from the gate. Instead of using a towbar, it drives up to the nose wheels, clamps them in place and lifts the nose landing gear slightly off the ground.

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This aircraft is designed to fly straight through the world's deadliest air defenses... and this was its very first flight. 👀 Meet the B-21 Raider—America's next-generation stealth bomber. Every line of its flying-wing design is engineered to minimize radar detection, allowing it to penetrate heavily defended airspace where most aircraft wouldn't survive. After years behind closed doors, the Raider finally took to the skies, marking the beginning of the aircraft expected to become the backbone of the U.S. bomber fleet for decades. The future of stealth isn't coming...It's already flying✈️🔥

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The J20 is an ex Soviet design, the MiG 1.44. The whole idea is to develop a very high profile and visible “stealth” aircraft. In the end, it became a white elephant for graft with bad engines and are able to be detected by the drying rack of a radar.

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🇺🇸 The GBU-57: the bomb built to kill what nothing else can reach 30,000 pounds. Dropped from a B-2 at extreme altitude. GPS-guided fins adjust its trajectory in real time as it falls. On impact, it buries itself over 200 feet through reinforced concrete before detonating. The B-2 that carries it has no rudder, no vertical stabilizer, nothing to reflect radar. Its skin is coated in classified radar-absorbing material worth $1 billion per aircraft. It carries 40,000 pounds of ordnance and Iran never sees it coming. This is the weapon that cracked open Iran's underground missile cities. Source: AiTelly on YT

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🚨 PRESIDENT TRUMP JUST LAID IT STRAIGHT: "[The Strait of Hormuz] will open itself at a certain point!" "But we've defeated the enemy and they are an enemy. There is sick group of people. The leadership is gone. The Navy is gone. The Air Force is gone. The anti-aircraft equipment that they have, the radar they have is all gone." "Everything's gone. The Strait itself, the actual Strait. We're doing a good job, but it would be nice if the countries including China, if the countries that use it, China uses it 90% of their energy." "Japan is 95% of the energy. It would be nice if those countries would get involved."

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Boeing NT-43A RAT55 / NASA522 departing Palmdale Rare sighting of an incredibly secretive aircraft! The heavily modified Boeing 737-200 NT-43A (serial 73-1155), better known by its callsign RAT55 or now NASA522, lifts off from the Palmdale area. This unique radar testbed is equipped with large nose and tail radomes and is used to measure the radar cross-section of stealth aircraft in flight — a critical tool for validating low-observable designs and coatings. In the past, sightings of RAT55 outside the restricted ranges of Nevada are uncommon, so catching it operating at Plant 42 was incredible! It also flew as NASA522 in support of the last Artemis mission. Yesterday it flew as LORA21. Thanks for watching!

maurer8photography

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🇺🇸 The MQ-9 Reaper is a large military drone. Its body is made from special lightweight materials that are still very strong. The landing gear uses tough titanium parts so it can handle landings better. At the front is a small sensor called the Angle of Attack sensor. It tells the drone how the air is moving around it so the drone can fly smoothly and stay stable. Right behind that are the GPS units for navigation and the batteries that supply power. Further back is the Lynx SAR radar. Normal cameras need light to see, but this radar does not. It sends out radio waves downward. When those waves hit something on the ground like a vehicle or a building, they bounce back. Source: AI Telly

Mario Nawfal

175,715 次观看 • 4 个月前

In 1996, James Sethian showed something almost unfair...you can find shortest routes through a messy world by letting a wave expand once...no trial paths, no search beams, just one growing front. Here’s how: we solve for an arrival-time field T(x,y) so that T literally means how long the wave needs to reach this point. The rule is ||∇ T|| = 1/F, where the medium is fast (F large) the front sprints, where it’s slow it trudges, and obstacles are speed ≈ 0, so the front wraps around them because that’s the only way forward. Then comes the satisfying part: once T exists, a path doesn’t need to search at all...drop a bead anywhere and let it follow ẋ ∝ -∇ T, it slides downhill on the time landscape and traces a globally fastest route back to the source. This “wave = optimal control” viewpoint is exactly what Tsitsiklis (1995) made precise from the Hamilton-Jacobi side...compute the value/arrival-time function and the optimal trajectories fall out from it. #FastMarching #EikonalEquation

In 1996, James Sethian showed something almost unfair...you can find shortest routes through a messy world by letting a wave expand once...no trial paths, no search beams, just one growing front. Here’s how: we solve for an arrival-time field T(x,y) so that T literally means how long the wave needs to reach this point. The rule is ||∇ T|| = 1/F, where the medium is fast (F large) the front sprints, where it’s slow it trudges, and obstacles are speed ≈ 0, so the front wraps around them because that’s the only way forward. Then comes the satisfying part: once T exists, a path doesn’t need to search at all...drop a bead anywhere and let it follow ẋ ∝ -∇ T, it slides downhill on the time landscape and traces a globally fastest route back to the source. This “wave = optimal control” viewpoint is exactly what Tsitsiklis (1995) made precise from the Hamilton-Jacobi side...compute the value/arrival-time function and the optimal trajectories fall out from it. #FastMarching #EikonalEquation

Mathelirium

766,230 次观看 • 8 个月前