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38,455 次观看 • 1 个月前 •via X (Twitter)

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😓 Air India 🇮🇳 Flight AI171 with fully loaded Boeing 787-7 Dreamliner fatal accident: I‘m an airline pilot with >15‘000h of experience and a physics institute: My brief PRELIMINARY analysis of the visible facts from the video of the takeoff: * The flaps are only slightly extended, presumably to position 1 instead of 5. * The landing gear is still extended, which should have been retracted at this altitude and causes additional drag. * The aircraft is at a high angle of attack, which confirms the insufficient flap setting. * From the video and witness accounts, only low engine noise is audible. * Neither smoke nor fire is visible. * An engine failure is less likely. The most probable cause is presumably a human factor, an incorrectly chosen, insufficient flap setting for takeoff, and consequently an inadequately selected thrust. In this context, the correlated speeds were too low because they were calculated for a larger flap setting or a lighter aircraft. As a result, the aircraft took off with insufficient speed and intentionally but falsely derated thrust, was therefore on the unstable side, and rapidly lost more speed and altitude due to the additional failure to retract the landing gear in a timely manner, leading to a subsequent stall at low altitude and crash. For the experts: the aircraft got onto the wrong side of the speed vs drag curve and maneuvered itself into a corner from where there is no escape. Another possible cause could also have been an incorrect input of a wrong takeoff weight into the Flight Management System, resulting in too low thrust and too low speeds. The pilots got startled after takeoff, couldn’t wrap their head around what went wrong and incorrectly prioritized making an emergency call instead of flying the aircraft first, manually increasing thrust immediately to maximum, and retracting the landing gear. In summary of this very early and preliminary assessment (your confidence level should be as low as mine): The most probable cause is human error 😓 - as most of the time these days. Not because the pilots got worse (although that effect can be observed as well with prioritization of diversity over competence) - but because technology got so much better.

Iven‘s Dad

2,786,812 次观看 • 1 年前

Made with Seedance on Runway. Prompt: 👇 CAMERA: Handheld vintage consumer camcorder footage. First-person footage recorded entirely by RILEY as she documents an afternoon working on an old sports car inside a small independent garage. The camera remains physically handheld throughout. Natural hand tremors, crooked framing, occasional autofocus hunting, abrupt zooms, accidental lens obstruction, shaky low-angle shots and quick selfie transitions. She frequently places the camera momentarily on nearby surfaces before picking it back up, creating imperfect improvised compositions. The physical camera is never visible. LOOK: Authentic late-1990s DV home-video aesthetic. Soft slightly degraded image, mild tape noise, subtle chromatic imperfections, occasional exposure shifts, muted highlights, realistic skin tones and warm fluorescent garage lighting. Slightly nostalgic color reproduction without looking artificially stylized. STYLE: Relaxed DIY car-project vlog with a spontaneous, slightly chaotic atmosphere. Riley talks directly to the camera, jokes about mistakes and gets increasingly excited as the repair progresses. The footage feels completely unscripted and personally recorded. CHARACTER: RILEY — a charismatic woman in her late 20s with short messy auburn hair, freckles, expressive eyes and a practical appearance. She wears faded blue mechanic overalls over a plain white T-shirt, worn sneakers and work gloves. A few strands of hair fall across her face while working. Her clothes become slightly dusty and greasy during the repair. SETTING: A cramped independent automotive workshop on a sunny afternoon. Old tool cabinets, hanging fluorescent lights, shelves of spare parts, hydraulic equipment, scattered tools and an iconic vintage sports car occupying the center of the garage. Sunlight enters through a partially open garage door, creating bright patches on the concrete floor. STORYBOARD: (~2s, low-angle handheld shot) The camera enters the garage while RILEY's footsteps approach the old sports car. RILEY (off-camera): “Today we're finally getting this thing running.” (~2s, quick selfie) She crouches beside the car and grins at the lens. RILEY: “Hopefully.” (~2s, fast whip pan) The camera swings across the engine bay, tool bench and piles of spare parts before settling on the open hood. (~2s, close POV) Her gloved hands work on a stubborn component. The camera moves too close and briefly loses focus. RILEY (off-camera): “Come on…” (~2s, sudden handheld reaction shot) The component finally comes loose. RILEY pulls her hand back triumphantly. RILEY: “YES!” (~2s, camera placed on a toolbox) A static-but-imperfect wide shot captures RILEY leaning into the engine bay while she works. She occasionally glances toward the camera. (~2s, low handheld tracking shot) She climbs into the driver's seat. The camera follows awkwardly through the open door. (~2s, dashboard-level POV) The engine suddenly starts. RILEY freezes for a second, then laughs in disbelief. RILEY: “No way. No WAY!” (~2s, excited selfie) She jumps out of the car holding the camera, grinning with dirty hands and grease on her cheek. RILEY: “Okay, I definitely wasn't expecting that.” The camera shakes as she laughs and reaches toward the lens, ending the recording.

awesome_visuals

19,135 次观看 • 21 天前