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Bell's folding rotor system allows helicopter blades to fold and unfold during operation. This technology helps reduce the aircraft's size, making transport and storage easier, especially for military missions. The system was tested on a high-speed rail rig powered by a turboshaft engine and a turbofan to simulate real... show more

Space and Technology

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This is a Deutsche Bahn Class 612 tilting train in Germany. Modern tilting train technology was widely developed and tested from the 1960s onward to help trains handle curves more smoothly and quickly by leaning inward during turns, reducing the sideways forces felt by passengers. The technology is especially useful on winding and mountainous rail routes, where building entirely new high-speed lines would be difficult or expensive, and it is still actively used today on many rail networks. 📹kilistrains

This is a Deutsche Bahn Class 612 tilting train in Germany. Modern tilting train technology was widely developed and tested from the 1960s onward to help trains handle curves more smoothly and quickly by leaning inward during turns, reducing the sideways forces felt by passengers. The technology is especially useful on winding and mountainous rail routes, where building entirely new high-speed lines would be difficult or expensive, and it is still actively used today on many rail networks. 📹kilistrains

Interesting World

627,381 Aufrufe • vor 4 Monaten

Russia is secretly helping Iran develop technology for supersonic cruise missiles that could potentially threaten U.S. aircraft carriers and other warships in the Middle East - Financial Times The cooperation is part of a secret multi-year program codenamed C430L that began in 2023 and has continued during the ongoing conflict involving Iran, the United States and Israel. It's main purpose is to help Iran to develop a ramjet propulsion system, an engine that allows a cruise missile to sustain flight at several times the speed of sound. Missile and military experts told the FT that the technology was almost certainly intended for anti-ship and land-attack cruise missiles. Iran has developed and flight-tested a ramjet engine, but there is no evidence that a cruise missile developed with Russian assistance has been deployed. However, negotiations over C430L were still continuing this summer, the leaked correspondence showed. "For the Iranians, this would provide a qualitatively new strategic weapons system capable of threatening U.S. Navy ships," former CIA military analyst Jim Lamson told the FT.

Russia is secretly helping Iran develop technology for supersonic cruise missiles that could potentially threaten U.S. aircraft carriers and other warships in the Middle East - Financial Times The cooperation is part of a secret multi-year program codenamed C430L that began in 2023 and has continued during the ongoing conflict involving Iran, the United States and Israel. It's main purpose is to help Iran to develop a ramjet propulsion system, an engine that allows a cruise missile to sustain flight at several times the speed of sound. Missile and military experts told the FT that the technology was almost certainly intended for anti-ship and land-attack cruise missiles. Iran has developed and flight-tested a ramjet engine, but there is no evidence that a cruise missile developed with Russian assistance has been deployed. However, negotiations over C430L were still continuing this summer, the leaked correspondence showed. "For the Iranians, this would provide a qualitatively new strategic weapons system capable of threatening U.S. Navy ships," former CIA military analyst Jim Lamson told the FT.

Anton Gerashchenko

91,689 Aufrufe • vor 20 Tagen

Introducing Leonidas H2O: a high-energy, high-power microwave system, validated in DoD testing to disable boat motors and drones. Built using the scalable Leonidas HPM technology platform, Leonidas H2O disabled all vessel motors it was tested against at operationally relevant ranges during the US Navy's Advanced Naval Technology Exercise. “The Department of Defense has spent years of research and development and poured tens-of-millions of dollars into developing a non-kinetic vessel stop solution, with no operational system deployed to date. With Leonidas H2O, we are bringing forth a proven technology with demonstrated effectiveness to fill this capability gap, today." - Epirus CEO Andy Lowery.

Introducing Leonidas H2O: a high-energy, high-power microwave system, validated in DoD testing to disable boat motors and drones. Built using the scalable Leonidas HPM technology platform, Leonidas H2O disabled all vessel motors it was tested against at operationally relevant ranges during the US Navy's Advanced Naval Technology Exercise. “The Department of Defense has spent years of research and development and poured tens-of-millions of dollars into developing a non-kinetic vessel stop solution, with no operational system deployed to date. With Leonidas H2O, we are bringing forth a proven technology with demonstrated effectiveness to fill this capability gap, today." - Epirus CEO Andy Lowery.

Epirus

126,762 Aufrufe • vor 1 Jahr

What was old is new again! See our Axisymmetric Vectoring Exhaust Nozzle (AVEN) technology, first demonstrated on the F110 engine in the 1990s, as it comes back to life for Shield AI AI’s X-BAT and helps advance autonomous flight. #FutureOfFlight #Defense

What was old is new again! See our Axisymmetric Vectoring Exhaust Nozzle (AVEN) technology, first demonstrated on the F110 engine in the 1990s, as it comes back to life for Shield AI AI’s X-BAT and helps advance autonomous flight. #FutureOfFlight #Defense

GE Aerospace

31,511 Aufrufe • vor 6 Tagen

The Bloodhound LSR is a British engineered land speed car powered by a Rolls-Royce EJ200 jet engine and designed to reach extreme speeds. It was tested in 2019 in South Africa, where it reached about 628 mph using a mix of jet power and advanced sensors for data tracking. The project aims to hit 800 mph using a hybrid rocket system and break the world land speed record set by Andy Green.

The Bloodhound LSR is a British engineered land speed car powered by a Rolls-Royce EJ200 jet engine and designed to reach extreme speeds. It was tested in 2019 in South Africa, where it reached about 628 mph using a mix of jet power and advanced sensors for data tracking. The project aims to hit 800 mph using a hybrid rocket system and break the world land speed record set by Andy Green.

Space and Technology

18,292 Aufrufe • vor 5 Monaten

India is on track to power the future with its first indigenous hydrogen-powered train. 🚆 A 10-coach Hydrogen Fuel Cell train will operate on the Jind–Sonipat section in Haryana, powered by a 1200 kW hydrogen fuel cell propulsion system and running at a maximum speed of 75 kmph. The train emits only water vapour, making it a clean, energy-efficient alternative to conventional fossil fuel-based rail transport. With this milestone, India joins an elite group of nations, including Germany, Japan, China and the United States, exploring hydrogen fuel cell technology for sustainable rail operations. Designed and developed in India, the project is backed by indigenous hydrogen storage and refuelling infrastructure at Jind, marking another significant step towards #AtmanirbharBharat and a greener transportation future. #HydrogenTrain #IndianRailways #GreenMobility #ViksitBharat

India is on track to power the future with its first indigenous hydrogen-powered train. 🚆 A 10-coach Hydrogen Fuel Cell train will operate on the Jind–Sonipat section in Haryana, powered by a 1200 kW hydrogen fuel cell propulsion system and running at a maximum speed of 75 kmph. The train emits only water vapour, making it a clean, energy-efficient alternative to conventional fossil fuel-based rail transport. With this milestone, India joins an elite group of nations, including Germany, Japan, China and the United States, exploring hydrogen fuel cell technology for sustainable rail operations. Designed and developed in India, the project is backed by indigenous hydrogen storage and refuelling infrastructure at Jind, marking another significant step towards #AtmanirbharBharat and a greener transportation future. #HydrogenTrain #IndianRailways #GreenMobility #ViksitBharat

Amit Malviya

11,883 Aufrufe • vor 2 Monaten

India is on track to power the future with its first indigenous hydrogen-powered train. 🚆 A 10-coach Hydrogen Fuel Cell train will operate on the Jind–Sonipat section in Haryana, powered by a 1200 kW hydrogen fuel cell propulsion system and running at a maximum speed of 75 kmph. The train emits only water vapour, making it a clean, energy-efficient alternative to conventional fossil fuel-based rail transport. With this milestone, India joins an elite group of nations, including Germany, Japan, China and the United States, exploring hydrogen fuel cell technology for sustainable rail operations. Designed and developed in India, the project is backed by indigenous hydrogen storage and refuelling infrastructure at Jind, marking another significant step towards #AtmanirbharBharat and a greener transportation future. #HydrogenTrain #IndianRailways #GreenMobility #ViksitBharat

India is on track to power the future with its first indigenous hydrogen-powered train. 🚆 A 10-coach Hydrogen Fuel Cell train will operate on the Jind–Sonipat section in Haryana, powered by a 1200 kW hydrogen fuel cell propulsion system and running at a maximum speed of 75 kmph. The train emits only water vapour, making it a clean, energy-efficient alternative to conventional fossil fuel-based rail transport. With this milestone, India joins an elite group of nations, including Germany, Japan, China and the United States, exploring hydrogen fuel cell technology for sustainable rail operations. Designed and developed in India, the project is backed by indigenous hydrogen storage and refuelling infrastructure at Jind, marking another significant step towards #AtmanirbharBharat and a greener transportation future. #HydrogenTrain #IndianRailways #GreenMobility #ViksitBharat

BJP

31,048 Aufrufe • vor 2 Monaten

The 1937 Herrick HV-2A Vertaplane is considered one of the first convertiplanes and one of the earliest examples of VTOL technology. It was a biplane that allowed the upper wing to be unlocked—either on the ground or mid-air—to spin as an autogyro rotor, enabling short take-offs and landings. Powered by a 125 hp Kinner B-5 radial engine, it successfully demonstrated ground and in-flight transitions between 1937 and 1939, before retiring. It is now preserved at the Smithsonian National Air and Space Museum.👀

The 1937 Herrick HV-2A Vertaplane is considered one of the first convertiplanes and one of the earliest examples of VTOL technology. It was a biplane that allowed the upper wing to be unlocked—either on the ground or mid-air—to spin as an autogyro rotor, enabling short take-offs and landings. Powered by a 125 hp Kinner B-5 radial engine, it successfully demonstrated ground and in-flight transitions between 1937 and 1939, before retiring. It is now preserved at the Smithsonian National Air and Space Museum.👀

Aviation Archive - Tim Farmer

33,431 Aufrufe • vor 7 Monaten

Absolutely wild footage, this is a real world engine failure in a MD500 (Think Magnum P.I. helicopter) over Kauai, Hawaii out on a tour flight. You’ll probably have to watch this a few times but the video starts out with the helicopter under power and then the engine sound goes silent. The beeping you hear is the engine-out audio beep to inform the pilot that engine power has been lost. This maneuver that pilot is doing is called a Autorotation and the way to think about helicopter flight, the engine is turning this big fan (rotor blades) on top of the body and sucking in air from the top and projecting it downward to overcome the force of gravity. When engine power is lost, you experience a reverse in airflow because now gravity takes over and the air flow is coming from the bottom of the main rotor disk. The only thing the pilot can really do is to make sure the rotors keep spinning by changing the pitch of the rotor blades through the use of the “collective” which is a lever next to the pilot’s left leg and it only moves up and down. The pilot has to manipulate the collective during an auto rotation to make sure the blades keep spinning. If the pilot pulls up too much on the collective, the rotor blades will bite too much of air causing a resistance and slow the rotors down. If the pilot doesn’t pull enough collective.. the blades will speed up and potentially cause a catastrophic failure. The other control the pilot has is called the cyclic. This cyclic sits between the pilots legs and and manipulates individual pitch of the rotor blades to tilt the rotor disk aka “big fan” and make the helicopter go forward, backwards, left, right. So essentially in this type of emergency, you have to manipulate the controls in a delicate balance because no matter what, gravity is taking you to the ground because the engine is no longer producing power. The pilot did an outstanding job here given the geography and limited amount of flat terrain to put the helicopter on the ground. Thankfully it sounds like no souls were lost and only one injury according to a news report (see the link below)👇 Of course there is a lot more to helicopter aerodynamics but I’m trying my best to put this in simpler to digest terms. Big thanks to Combat Learjet for sharing and definitely worth a follow!

Absolutely wild footage, this is a real world engine failure in a MD500 (Think Magnum P.I. helicopter) over Kauai, Hawaii out on a tour flight. You’ll probably have to watch this a few times but the video starts out with the helicopter under power and then the engine sound goes silent. The beeping you hear is the engine-out audio beep to inform the pilot that engine power has been lost. This maneuver that pilot is doing is called a Autorotation and the way to think about helicopter flight, the engine is turning this big fan (rotor blades) on top of the body and sucking in air from the top and projecting it downward to overcome the force of gravity. When engine power is lost, you experience a reverse in airflow because now gravity takes over and the air flow is coming from the bottom of the main rotor disk. The only thing the pilot can really do is to make sure the rotors keep spinning by changing the pitch of the rotor blades through the use of the “collective” which is a lever next to the pilot’s left leg and it only moves up and down. The pilot has to manipulate the collective during an auto rotation to make sure the blades keep spinning. If the pilot pulls up too much on the collective, the rotor blades will bite too much of air causing a resistance and slow the rotors down. If the pilot doesn’t pull enough collective.. the blades will speed up and potentially cause a catastrophic failure. The other control the pilot has is called the cyclic. This cyclic sits between the pilots legs and and manipulates individual pitch of the rotor blades to tilt the rotor disk aka “big fan” and make the helicopter go forward, backwards, left, right. So essentially in this type of emergency, you have to manipulate the controls in a delicate balance because no matter what, gravity is taking you to the ground because the engine is no longer producing power. The pilot did an outstanding job here given the geography and limited amount of flat terrain to put the helicopter on the ground. Thankfully it sounds like no souls were lost and only one injury according to a news report (see the link below)👇 Of course there is a lot more to helicopter aerodynamics but I’m trying my best to put this in simpler to digest terms. Big thanks to Combat Learjet for sharing and definitely worth a follow!

Thenewarea51

5,859,628 Aufrufe • vor 2 Jahren

Automatic Helicopter Landings on Naval Ships Landing a helicopter on a moving naval ship is one of the most demanding tasks in aviation. The flight deck continuously changes its position, attitude, and velocity with the sea, requiring precise relative positioning throughout the approach. The landing sequence uses two navigation systems. During the approach, Differential GPS (DGPS) guides the helicopter along a calculated flight path. Near the flight deck, navigation switches to a laser guidance system, providing centimeter-level relative positioning for the final hover and touchdown. During the automatic hover, the flight control system continuously compensates for ship motion, wind, and turbulence to maintain a stable landing position. This significantly reduces pilot workload and can safely complete the landing even if the pilot becomes incapacitated. The system entered operational service on the JMSDF SH-60K Seahawk, becoming the world's first operational system capable of fully automatic landings of a manned helicopter on a moving naval ship. It was developed by Mitsubishi Heavy Industries.

Automatic Helicopter Landings on Naval Ships Landing a helicopter on a moving naval ship is one of the most demanding tasks in aviation. The flight deck continuously changes its position, attitude, and velocity with the sea, requiring precise relative positioning throughout the approach. The landing sequence uses two navigation systems. During the approach, Differential GPS (DGPS) guides the helicopter along a calculated flight path. Near the flight deck, navigation switches to a laser guidance system, providing centimeter-level relative positioning for the final hover and touchdown. During the automatic hover, the flight control system continuously compensates for ship motion, wind, and turbulence to maintain a stable landing position. This significantly reduces pilot workload and can safely complete the landing even if the pilot becomes incapacitated. The system entered operational service on the JMSDF SH-60K Seahawk, becoming the world's first operational system capable of fully automatic landings of a manned helicopter on a moving naval ship. It was developed by Mitsubishi Heavy Industries.

Tengiz

41,135 Aufrufe • vor 1 Monat

On New Shepard's 23rd flight the booster's engine failed causing the capsule to trigger it's launch escape system. Luckily this flight was flying scientific payloads and not crew, although a crew would have been safe thanks to the escape system.

On New Shepard's 23rd flight the booster's engine failed causing the capsule to trigger it's launch escape system. Luckily this flight was flying scientific payloads and not crew, although a crew would have been safe thanks to the escape system.

Booster 10

20,614 Aufrufe • vor 1 Jahr

Watch: World Largest Helicopter lifting off a Chinook The Mi-26 is the world's largest and most powerful helicopter, built by Russia's Mil Moscow Helicopter Plant for both military and civilian missions. It stands as tall as a three-story building, its massive rotor diameter is comparable to the wingspan of an Airbus A320. Its lifting capability allows it to transport troops, armored vehicles, oversized cargo, and heavy equipment that most helicopters simply can't carry. Beyond transport, the Mi-26 is also used for evacuations, firefighting, disaster relief, and other demanding missions where sheer lifting power makes all the difference.

Watch: World Largest Helicopter lifting off a Chinook The Mi-26 is the world's largest and most powerful helicopter, built by Russia's Mil Moscow Helicopter Plant for both military and civilian missions. It stands as tall as a three-story building, its massive rotor diameter is comparable to the wingspan of an Airbus A320. Its lifting capability allows it to transport troops, armored vehicles, oversized cargo, and heavy equipment that most helicopters simply can't carry. Beyond transport, the Mi-26 is also used for evacuations, firefighting, disaster relief, and other demanding missions where sheer lifting power makes all the difference.

Aviation Reporter

630,538 Aufrufe • vor 2 Monaten

"The ramjet‑powered engine will double the range of the baseline PrSM, while maintaining compatibility with existing HIMARS and M270 launchers. Following extensive engine ground testing in both booster and ramjet modes, a flight test this year will demonstrate near-tactical range performance and a mature propulsion technology for future long-range strike missions" ~ Lockheed Martin (🎥L3Harris)

"The ramjet‑powered engine will double the range of the baseline PrSM, while maintaining compatibility with existing HIMARS and M270 launchers. Following extensive engine ground testing in both booster and ramjet modes, a flight test this year will demonstrate near-tactical range performance and a mature propulsion technology for future long-range strike missions" ~ Lockheed Martin (🎥L3Harris)

Air-Power | NatSec Ledger

58,169 Aufrufe • vor 16 Tagen

🚀 Breaking New Ground in Supersonic Flight! Carried by a Starfighters F-104 aircraft, last week GE Aerospace announced it has successfully completed supersonic captive carry flight tests of its ATLAS Flight Test Vehicle, marking a major milestone in advancing solid fuel ramjet (SFRJ) propulsion technology. 🌍✈️ The system reached supersonic speeds during three successful flights at Kennedy Space Center. This achievement showcases the potential of air-breathing propulsion to extend the range of munitions and paves the way for future high-speed systems. See more on how the team is continuing to evolve and grow the technology.

🚀 Breaking New Ground in Supersonic Flight! Carried by a Starfighters F-104 aircraft, last week GE Aerospace announced it has successfully completed supersonic captive carry flight tests of its ATLAS Flight Test Vehicle, marking a major milestone in advancing solid fuel ramjet (SFRJ) propulsion technology. 🌍✈️ The system reached supersonic speeds during three successful flights at Kennedy Space Center. This achievement showcases the potential of air-breathing propulsion to extend the range of munitions and paves the way for future high-speed systems. See more on how the team is continuing to evolve and grow the technology.

GE Aerospace

18,190 Aufrufe • vor 11 Monaten

Often referred to as the Fulton surface-to-air recovery system (STARS), Operation Skyhook was a Cold War-era method used by the CIA and US military to extract personnel from the ground without landing. A specially modified Lockheed P2V Neptune was the primary aircraft used to develop and test this daring retrieval system.

Often referred to as the Fulton surface-to-air recovery system (STARS), Operation Skyhook was a Cold War-era method used by the CIA and US military to extract personnel from the ground without landing. A specially modified Lockheed P2V Neptune was the primary aircraft used to develop and test this daring retrieval system.

Aviation Archive - Tim Farmer

95,522 Aufrufe • vor 3 Monaten

The 1947 Bombardier B12 was a large, tracked snow vehicle, often called a "snow bus" or "snow cat," designed for transporting passengers and cargo in snowy conditions. It was powered by a Chrysler engine and featured a unique design with skis for steering and a rear track system for propulsion, making it popular for use as a winter school bus, ambulance, or for mail delivery.

The 1947 Bombardier B12 was a large, tracked snow vehicle, often called a "snow bus" or "snow cat," designed for transporting passengers and cargo in snowy conditions. It was powered by a Chrysler engine and featured a unique design with skis for steering and a rear track system for propulsion, making it popular for use as a winter school bus, ambulance, or for mail delivery.

truthache

167,826 Aufrufe • vor 10 Monaten

Crashed during a low-altitude test flight : Zhonglian F-27 helicopter made a dramatic crash landing in Changzhou, China, leaving two injured. The tail section of the helicopter built by Changzhou Zhonglian Aviation Technology Co., Ltd. in China, snapped, causing the aircraft to shake and spin violently and uncontrollably. #helicopter

Crashed during a low-altitude test flight : Zhonglian F-27 helicopter made a dramatic crash landing in Changzhou, China, leaving two injured. The tail section of the helicopter built by Changzhou Zhonglian Aviation Technology Co., Ltd. in China, snapped, causing the aircraft to shake and spin violently and uncontrollably. #helicopter

FL360aero

47,255 Aufrufe • vor 3 Monaten