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NEWS 📰 GE Aerospace and Shield AI have successfully completed integration, actuation, and engine light-off testing of the advanced Axisymmetric Vectoring Exhaust Nozzle (AVEN) for Shield AI’s X-BAT aircraft, a critical milestone in the program's path to vertical flight. Engineers from both companies modified and integrated the AVEN into...

39,808 просмотров • 1 месяц назад •via X (Twitter)

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This is the most powerful commercial jet engine currently flying on an operational airliner. The GE90-115B was built by GE Aerospace specifically for the Boeing 777-300ER. It weighs around 8.3 tonnes, has a 3.25 metre wide fan and produces up to 512 kN (115,000 lbf) of thrust from a single engine. To understand the sheer scale of that output, it produces roughly 2.7 times the thrust of the F135 jet engine powering the F-35, the most powerful fighter engine currently in service. The enormous fan at the front uses just 22 carbon fibre composite blades with titanium leading edges. At maximum thrust, it pulls in roughly 1.4 tonnes of air every second, with nearly 90% bypassing the core rather than passing through the combustor. At around 150 knots during takeoff, its 512 kn of thrust corresponds to roughly 39.5 MW of propulsive power, or in automotive terms around 53,000 hp from one engine. And it burns roughly 4-5 kg of jet fuel every second at maximum power conditions. Two of these engines are enough to power a fully loaded 777-300ER weighing more than 350 tonnes. Even if one engine fails after the critical point during takeoff, the aircraft is certified to continue the takeoff and climb on the remaining one GE90 engine. Each engine costs around $35-40 million. More than 2,500, GE90s engines have been built, and the GE90 family has accumulated nearly 130 million flight hours. And this is precisely why companies like GE Aerospace remain so difficult to displace in jet engines. There is never one breakthrough. GE spent roughly $2+ billion developing the GE90, chasing small gains across hundreds of systems, efficiency, materials, reliability and component life.

Ammanichanda

53,005 просмотров • 1 месяц назад

Canada's first orbital-class rocket engine is now being manufactured! Our patent pending Hadfield-150 engine is the largest and most powerful rocket engine ever built in Canada, and the first known Canadian orbital-class engine to make it to this stage. The Hadfield-150 builds on everything we learned after years of painstakingly designing, manufacturing, and testing the Hadfield-10 series, our first regeneratively cooled and additively manufactured liquid rocket engine. Every engine test, both successful and unsuccessful on our Darkhorse test stand at Area 66, retired risk that's now carried straight into Hadfield-150 and sovereign orbital launch for Canada. A few details about the Hadfield-150 engine series: ✅ Designed to power Tundra and Tundra+, our light and medium-lift launch vehicles, and built to scale to Tempest, our larger reusable medium lift vehicle ✅ Manufactured entirely in-house, from design to print to test, for true sovereign launch capability ✅ Produced at Rocket Factory 1, on our expanding fleet of metal additive manufacturing systems at the AMA Lab, including the largest known metal 3D printer in Canada ✅ Designed for reusability and medium-lift scale from the outset, and built to significantly cut the time, infrastructure, manufacturing and cost iterative engine testing usually requires, with room to scale to even larger engines by leveraging the same design ✅ Capable of engine-out functionality, so losing one on an early flight doesn't have to mean losing the mission ✅ Optimized for Canada's Launch the North initiative, to deliver sovereign operational capability in a time and cost efficient manner Initial testing starts later this year at our new Blackhawk orbital engine test cell at Area 66, our private test range in Ontario. Stacked, integrated vehicle testing comes later at the Atlantic Spaceport Complex, our spaceport in Newfoundland and Labrador. Stay tuned for some exciting and fiery milestones ahead! 🚀🇨🇦 National Defence Defence Research and Development Canada Canadian Space Agency Transport Canada NGen Canada

NordSpace 🇨🇦

27,784 просмотров • 2 месяцев назад

Following the Delta A330-323(N813NW) engine failure after departure from São Paulo (GRU), many are asking: what actually happens if an airliner loses an engine just after takeoff? As passenger in the cabin watching this scenario unfold, the panic is understandable. Seeing flames from an engine is alarming. But this is exactly the kind of scenario pilots are trained for repeatedly in simulators. Modern multi-engine aircraft are designed to fly safely on one engine. In fact, losing one engine is a certification requirement during testing. Here’s what happens: At liftoff, pilots target V2 speed—the minimum safe speed that guarantees the aircraft can continue climbing even with one engine inoperative. If an engine fails: • The MASTER FIRE warning light will illuminate in the cockpit and the fire warning bell will sound, alerting the pilots on the affected engine (they will close the fuel, hydraulic shutoff, and engine bleed air valves, and also discharge the related fire bottle to extinguish the engine fire). Of course, they will be careful NOT TO shut down the wrong engine (this has happened before). • Maximum thrust is applied on the remaining engine. • Rudder input keeps the aircraft straight (countering asymmetric thrust) • The aircraft climbs straight ahead for best performance (turns reduce climb rate unless required) Once above a safe altitude (typically ~1,500 ft / Minimum Flap Retraction Altitude(MFRA): • The aircraft accelerates • Flaps are retracted (“cleaning up”) • Crew assesses the situation and plans a return or diversion Even at very low altitude, the aircraft remains controllable by design. It may not climb aggressively, but it will climb. Bottom line: What looks catastrophic from the cabin is a scenario pilots are highly trained to handle—and aircraft are engineered to withstand. Hope this helps any nervous flyer. Flying is safe, and the chances of this happening have reduced due to lessons learned from previous incidents. And if you ever find yourself in this situation, trust that the pilots will act according to their training—because that’s their job.

Turbine Traveller

42,927 просмотров • 6 месяцев назад

Airbus A350F completes two Rejected Take-Off tests ahead of maiden flight The first Airbus A350F prototype, MSN700, has completed two high-speed Rejected Take-Off (RTO) tests at Airbus’s Toulouse facility, marking another major milestone as the new-generation freighter moves toward its first flight. An RTO test deliberately accelerates the aircraft along the runway and then commands a rejected take-off, allowing engineers to validate the aircraft’s ability to decelerate safely from a high-speed take-off condition. The testing places significant demands on the wheel brakes, landing gear, tires, braking control systems, steering and overall thermal management. Airbus identifies rejected take-offs as part of the certification flight-test programme for new aircraft. 🔧 What makes the A350F test campaign significant? The A350F is not simply an A350-1000 converted into a freighter. Airbus says its unique fuselage configuration combines the forward fuselage length of an A350-900 with the rear fuselage and wings of the A350-1000, creating a new aerodynamic model and different ground-handling characteristics. The first prototype, MSN700, is specifically equipped for aerodynamic, performance and handling-quality testing, including a tail skid/bumper for take-off performance testing. Airbus plans around 400 flight-test hours for the programme, with a second aircraft, MSN701, dedicated largely to systems testing. The A350F will be powered by Rolls-Royce Trent XWB-97 engines and is designed to carry around 109–111 tonnes of payload, depending on the specification cited, with a range of roughly 8,800 km (4,700 nm) at maximum structural payload. 🚀 With the RTO tests now completed, the A350F is moving into the final preparations for its maiden flight, a key step toward Airbus's planned certification campaign and first customer deliveries. 🎥Credit: BIG JET TV/ BIG JET TV #A350F #A350Freighter #Aviation #FlightTest #RejectedTakeOff #RTO #Freighter #Aerospace

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