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Tejas Mk-2 rollout completed. The indigenous MWF has entered the pre flight phase, with its maiden flight scheduled for June 2026. 🇮🇳 With rollout complete, CEMILAC will issue First Flight Clearance (FFC) after certifying ground functional checks, engine ground runs, flight control laws, emergency systems, and also the low...

89,390 görüntüleme • 6 ay önce •via X (Twitter)

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NEWS: SpaceX has released a statement after today's successful 11th Starship test flight. "Every major objective of the flight test was achieved, providing valuable data as we prepare the next generation of Starship and Super Heavy. The flight test began with Super Heavy igniting all 33 Raptor engines and ascending over the Gulf. The successful first-stage ascent was followed by a hot-staging maneuver, with Starship’s upper stage igniting its six Raptor engines to continue its flight to space. Following stage separation, the Super Heavy booster completed its boostback burn to put it on a course to a pre-planned splashdown zone off the coast of Texas using 12 of the 13 planned engines. Under the same angle of attack tested on the previous flight, the booster descended until successfully igniting all 13 planned engines (including one that did not relight during the boostback burn) for the high-thrust portion of the landing burn. The booster successfully executed a unique landing burn planned for use on the next generation booster. Super Heavy hovered above the water before shutting down its engines and splashing down. After completing a full-duration ascent burn, Starship achieved its planned velocity and trajectory. During flight, Starship successfully deployed eight Starlink simulators and executed the third in-space relight of a Raptor engine, demonstrating a critical capability for future deorbit burns. Starship re-entered the Earth’s atmosphere and was able to gather extensive data on the performance of its heatshield as it was intentionally stressed to test the limits of the vehicle’s capabilities. In the final minutes of flight, Starship performed a dynamic banking maneuver to mimic the trajectory that future missions returning to Starbase will fly. Starship then guided itself using its four flaps to the pre-planned splashdown zone in the Indian Ocean, successfully executing a landing flip, landing burn, and soft splashdown. Focus now turns to the next generation of Starship and Super Heavy, with multiple vehicles currently in active build and preparing for tests. This next iteration will be used for the first Starship orbital flights, operational payload missions, propellant transfer, and more as we iterate to a fully and rapidly reusable vehicle with service to Earth orbit, the Moon, Mars, and beyond."

Sawyer Merritt

273,302 görüntüleme • 9 ay önce

What is the RAT? The RAT is a small wind turbine stowed within the aircraft fuselage and deployed automatically when certain failure conditions are met. Once extended into the airstream, it uses the forward motion of the aircraft to spin and generate power—mechanical, hydraulic, or electrical. Primary Functions of the RAT on the 787-8 1. Hydraulic Backup Power On deployment, the RAT drives a variable displacement inline hydraulic pump. It pressurizes the center hydraulic system, enabling continued operation of critical flight control surfaces such as the ailerons, elevators, and rudder. This is vital in maintaining aircraft controllability if normal hydraulic sources are lost. 2. Supplementary Electrical Power While the RAT is primarily a hydraulic power source on the 787-8, it can also, in some configurations, drive an emergency generator. This generator provides sufficient AC and DC power to support essential avionics, flight displays, and communications systems. Deployment Scenarios: When Does the RAT Automatically Deploy? The RAT on the Boeing 787-8 deploys automatically—without crew input—under the following emergency conditions: 1. Dual Engine Failure If both engines fail, resulting in the loss of engine-driven electrical and hydraulic generation, the RAT deploys to maintain critical flight control power. 2. Complete Electrical Loss to Flight Instruments If there’s a total loss of electrical power to both the captain’s and first officer’s primary flight instruments, the RAT ensures these systems remain powered. 3. Low Pressure in All Three Hydraulic Systems If all three systems—Left, Center, and Right—lose hydraulic pressure, the RAT provides emergency hydraulic power through the center system. 4. EMP Failure + Engine Loss During Takeoff or Landing If all four Electric Motor Pumps (EMPs) fail and an engine fails during takeoff or landing, the RAT deploys to sustain flight control power during these critical phases. Automatic and Autonomous Operation One of the RAT’s key advantages is its fully autonomous activation. Pilots do not need to manually deploy it; the system is designed to react immediately to predefined failure logic, reducing workload and ensuring flight-critical systems remain powered. In Summary The Ram Air Turbine (RAT) on the Boeing 787-8 is not just a backup—it's a lifesaving last resort. It deploys automatically to supply hydraulic and limited electrical power when all other power sources fail. Designed with layered redundancy in mind, it is one of the unsung heroes of modern aircraft systems, ensuring that even in worst-case scenarios, pilots retain control to guide the aircraft—and its passengers—safely to the ground.

Turbine Traveller

293,307 görüntüleme • 1 yıl önce

💥 This is an online briefing circulating about the incident (The incident site was only about four miles from Zhongnanhai) : Incident No.: 2026-06-26-STFS-01 Incident Type: Suspected crash after loss of contact during general aviation local training Date of Incident: June 26, 2026 Time of Incident: 17:30–17:40 Location: Beijing Shifosi General Aviation Airport and the airspace near the East Fifth Ring Road to its west Operating Unit: Dongshi Shuangyue (Beijing) General Aviation Co., Ltd. Aircraft Information: Registration No. B-12PP Flight Personnel: Liu Junhua, a club member conducting a local solo flight I. Flight Overview This was a solo training flight by a club member within the local airspace, with the planned training subject being local takeoffs and landings. At 17:30, the aircraft took off normally from Shifosi Airport. At 17:40, as the crew prepared to return for landing and join the westbound traffic pattern for Runway 18, abnormal control behavior occurred. The aircraft did not properly enter the local traffic pattern. Instead, it continued maintaining a heading of 270 degrees due west and flew beyond the local controlled airspace. Local ADS-B monitoring continued until the aircraft reached the area near Beijing’s East Fifth Ring Road, after which its signal disappeared. The ground control tower then coordinated with regional approach control and Air Force control authorities, making repeated radio calls, but received no response. The aircraft lost contact. II. Key Timeline At 17:30, B-12PP took off from Shifosi Airport for a local solo training flight. At 17:40, it prepared to join the west-side traffic pattern for Runway 18 for approach and landing. The aircraft’s heading became abnormal, continuing on a 270-degree heading and flying westward out of the local airspace. The flight track reached the area near the East Fifth Ring Road, where the ADS-B signal was lost. Approach control and Air Force control were contacted, but the aircraft never responded by radio and was considered missing. III. Preliminary Risk and Problem Analysis Insufficient solo-flight control: The member was flying alone, without instructor monitoring, meaning there was no condition for intervention or emergency handling once a special situation occurred. Severe deviation from the flight pattern: During the approach phase, the aircraft failed to fly according to the standard traffic pattern. Its heading continued to deviate, causing it to cross the boundary and enter sensitive airspace over the city. Complete failure of communication and surveillance: ADS-B and radio communication failed, creating extremely high risk. Serious airspace safety hazard: A low-altitude general aviation aircraft crossed the boundary into the airspace above a built-up urban area, posing major safety risks on the ground. IV. Possible Causes Pending confirmation by official investigation Human factors: Pilot error, spatial disorientation, physical incapacitation, etc. Mechanical failure: Failure of the flight control system, engine, or electrical system, causing the heading to become uncorrectable and communication/surveillance to be interrupted. Equipment failure: Failure of ADS-B or the radio transponder, resulting in loss of signal and inability to establish contact. Some people online also found a photo of a Liu Junhua who is deputy general manager of the Discretionary Mandate and Solutions Department at CITIC Bank’s Asset Management Business Center, and claimed that she was the aircraft’s pilot. The building that was struck, China Zun — also known as CITIC Tower — is precisely where CITIC Group is headquartered. However, others have come forward saying that the pilot was not the Liu Junhua from CITIC. There are also two LinkedIn photos of Liu Junhua from CITIC in the comment section.

Inconvenient Truths — Jennifer Zeng Reports

433,155 görüntüleme • 1 ay önce

Qatar Airways is expanding its international flight network, with services to over 150 destinations from 16 June 2026, connecting more passengers to more of the world this summer. The updated schedule, valid until 15 September 2026, introduces new routes and increased frequencies to and from Doha, offering passengers greater flexibility as they plan for the summer season. To view the schedule, visit Passengers with confirmed bookings on a flight in the new schedule will be notified directly with updated flight information. Qatar Airways recommends checking its website or app regularly and ensuring that contact details are kept up to date. As a reminder, if you have a confirmed booking with a travel date between 28 February and 15 September 2026, you are eligible for: · Complimentary date changes to a new travel date up to 31 October 2026 when rebooking on flights operated by Qatar Airways, subject to availability and fare seasonality. · If your flight is impacted, you remain eligible for further fee-free changes until 31 October 2026, or · Refund of the unused ticket value (Please note that refunds may take up to 28 working days to be processed). Passengers are kindly reminded not to proceed to their departure airport unless they hold a valid, confirmed ticket for travel. Please note: Flight schedules are subject to change or cancellation owing to operational, regulatory, safety, or other circumstances beyond our control. For further assistance, please visit our

Qatar Airways

101,553 görüntüleme • 3 ay önce

Following the Airbus A320 emergency airworthiness action, everyone will be talking about the ELAC (Elevator Aileron Computer) manufactured by Thales, which caused a sudden pitch-down without pilot input on JetBlue 1230 back in October. So here’s everything you need to know about ELAC. The ELAC System in the Airbus A320: The Brains Behind Pitch and Roll Control At the heart of the sophisticated fly-by-wire flight control system of the Airbus A320 lies the ELAC (Elevator Aileron Computer). This crucial component acts as one of the primary computational units that translate pilot commands into precise movements of the aircraft’s fundamental control surfaces: the elevators and the ailerons. ELAC plays a pivotal role in ensuring the aircraft’s stability and enabling smooth, safe, and efficient flight. What is ELAC? ELAC stands for Elevator Aileron Computer. On the A320, there are two main ELAC computers—ELAC 1 and ELAC 2—which operate together as essential elements of the aircraft’s fly-by-wire architecture. This system relies on electrical signals, rather than traditional mechanical cables, to transmit control inputs from the cockpit to the flight control surfaces. Key Functions of the ELAC System: Elevator Control: The elevators are control surfaces located on the horizontal tailplane of the aircraft. They govern movement around the lateral axis (pitch), determining whether the aircraft ascends or descends. ELAC receives signals from the pilot’s sidestick and translates them into precise commands to move the elevators, achieving the desired pitch attitude. Aileron Control: Ailerons are control surfaces situated on the trailing edge of the wings. They manage movement around the longitudinal axis (roll), controlling the aircraft’s banking to the left or right. The ELAC processes pilot inputs and moves the ailerons to achieve the intended bank angle. Implementing Flight Control Laws: One of ELAC’s most critical responsibilities is enforcing the pre-programmed flight control laws embedded within the Airbus computers. These laws ensure the aircraft responds to pilot commands in a calculated and safe manner, providing protection against maneuvers that could exceed operational limits (such as overspeed or critical angles of attack). Fault Monitoring and Redundancy: The ELAC system includes a high degree of redundancy to ensure safety. If one ELAC computer malfunctions, the other can seamlessly take over. ELAC also continuously monitors the performance of control surfaces and associated systems, issuing warnings to the crew if any anomalies are detected. ELAC 1 and ELAC 2: Distribution and Responsibility ELAC 1: Primarily controls the ailerons and certain elevator functions, especially those relying on the blue hydraulic system. ELAC 2: Primarily controls the elevators and the Trimmable Horizontal Stabilizer (THS), utilizing the green and yellow hydraulic systems. Info via Ashraf Yehia, Aircraft Structure Repair Engineer/LinkedIn.

Turbine Traveller

486,797 görüntüleme • 8 ay önce

🇨🇳🇺🇲CHINA says New Y-30 Transport Will Outperform U.S. C-130J in Payload and Power. China's state-affiliated media and a recent analysis in Aerospace Knowledge (published by Beihang University) have highlighted the Y-30 as a next-generation medium-lift tactical transport aircraft intended to outperform the Lockheed Martin C-130J Super Hercules in several key areas. The Y-30 is a four-engine turboprop developed by Shaanxi Aircraft Industry Corporation (under AVIC). It completed its maiden flight in December 2025 and remains in the early prototype/testing phase, with no publicly confirmed production schedule or final operational specifications from official Chinese sources. According to the Chinese analysis, the Y-30 is positioned to surpass the C-130J in: 🔺️Engine power — Powered by four indigenous AEP-500 (or EP-500) turboprops, claimed to deliver significantly higher output than the C-130J's Rolls-Royce AE2100D3 engines. 🔺️Payload capacity — Targeted at around 30 tonnes (some reports mention up to 35 tonnes in certain configurations), compared to the C-130J's typical maximum payload of roughly 19–21 tonnes. 🔺️Structural design and materials — Extensive use of composites for reduced weight and improved strength, versus the C-130's more traditional all-metal airframe. 🔺️Avionics and flight control software — Modern integrated systems offering potential advantages in automation and performance.

Global Surveillance

31,051 görüntüleme • 3 ay önce