Force involved on airframe
May 16, 2024
Compression v.s Tension (in between bending) Shear v.s Torsion
Why commercial airline pilot?
May 15, 2024
https://www.facebook.com/share/r/NYyyXRShUyjJgiH7/?mibextid=xCPwDs
Sustainable Aviation Fuel
May 14, 2024
https://youtu.be/04XFMjMOymk?si=1Zj2nOzHij02ZW5D https://youtu.be/oqma_OmJ1vE?si=PJAeg2H3Kz2FAljH
Bus Captain, Airbus Captain?
May 13, 2024
Passenger’s safety is always of the utmost importance. When a doctor makes a mistake, only one patient dies, while a pilot’s mistake can impact the lives of hundreds. We don’t need a hero, but we need a trustworthy operator! We are duty-bound, morally and professionally, to operate the plane (bus) as safely as possible. I
Good judgment
May 12, 2024
Good judgment comes from experience; experience comes from mistakes; and mistakes are often a result of bad judgment.
Communication skills
May 12, 2024
What skills do a pilot need? https://youtu.be/ZEPngQzXWe0?si=vyj5WzrfaKLR77Yx
Toxic
May 11, 2024
Carbon monoxide Feature: colorless odorless tasteless non-irritating Symptoms: drowsiness loss of muscular power unconsciousness coma and death Pilot actions: shut off heating (cabin heat), and open fresh air vents Ref: https://www.boldmethod.com/learn-to-fly/systems/avoid-carbon-monoxide-poisoning-on-winter-flights/
Hyperventilation
May 11, 2024
Ref: https://skybrary.aero/articles/hyperventilation Symptoms of hyperventilation Tingling stiffening spasm visual impairment anxiety dizziness unconsciousness Hyperventilation vs Hypoxia below 10,000 feet in general (in contrast, hypoxia at high level) Treatment administer oxygen paper bag method
Hypoxia
May 11, 2024
Four (4) major types of hypoxia –> Cause: Hypoxic Hypoxia –> Altitude insufficient O2 in breathing air Hypaemic (Anaemic) Hypoxia –> Blood Reduction in the O2 carrying capacity of the blood Stagnant Hypoxia –> Circulation inadequate circulation (e.g during positive-G manoeuvres) Histototic Hypoxia –>Drug alcohol, certain poisons Symptoms of hypoxia peripheral vision -> blur
Human Factor
May 11, 2024
History of human factors It’s better to lose one minute of your life than losing your life in one minute Examples: Germanwings Flight 9525 Crash Tenerife 1977 Asiana Flight 214
Crew Resource Management (CRM)
May 10, 2024
CRM – Crew Resource Management The application of team management concepts in the flight deck environment. It was initially known as cockpit resources management, but as CRM programs evolved to include cabin crews, maintenance personnel, and others, the phrase crew resource management was adopted. This includes single pilots, as in the most general aviation aircraft.
Mach Crit (Mcrit)?
May 10, 2024
Ref FAA PHAK 5-45 What’s Mcrit – Mach Crit? Ans: airflow over any part of the aircraft or structure under consideration first reaches (but does not exceed) Mach 1.0. Design of increase Mcrit (delay occurrence of shock wave) ? Thin airfoil (reduce the thickness) drawbacks: reduce the wing tank volumn Sweepback drawbacks: need to
Sweepback
May 10, 2024
Ref FAA PHAK What’s sweepback? Ans: the wind tilted backward Feature of sweepback? sweep back design is common for modern airliner (for transonic flight) sweep back design has significance on the movement around longitudinal axis (lateral stability) Important: don’t mix up “Sweepback” with “Taper” Taper: decrease of thickness and/or chord from wing root to wing
Shock wave
May 10, 2024
Ref FAA PHAK 5-47 What’s Shock wave? Ans: The boundary between the region of compressed air and undisturbed air. Or we can say it is the boundary between supersonic and subsonic range. Ref: https://youtu.be/N3SwZzb5EpA?si=HIXfwRaunRA7VfxQ
Mach number – Sonic, subsonic, transonic?
May 10, 2024
Ref FAA PHAK 5-44 to 5-51 Mach number is a kind of true airspeed indication method, it makes relationship with local speed of sound (LSS). Mach number = True Airspeed / Local Speed of Sound (LSS) LSS = 39 x sq root of Temperature (K) Note: C + 273 = K By FAA book’s
Question: if you are a load control officer, forward CG or aft CG is better for performance?
May 6, 2024
Provided that the aircraft remain with safe envelope, in general, aft CG (load cargo at rear compartment) has better performance. An aft center of gravity position/hold loading, for aircraft (especially jet/swept wing) with a nose-up en route attitude will allow it to achieve its maximum possible range. An aft center of gravity position, normally is
Comparison of modern airliner
May 6, 2024
https://www.flightglobal.com/analysis/analysis-can-the-a350-1000-live-up-to-airbuss-expectations/123250.article https://www.flightglobal.com/air-transport/airbus-details-range-expectations-from-latest-a350-1000-weight-increase/155580.article Airbus details range expectations from latest A350-1000 weight increase The airframer is raising the take-off weight to 322t – an increase of 3t – and says this will stretch the aircraft’s range to some 8,900nm at maximum passenger payload. https://www.cathaypacific.com/cx/zh_HK/inspiration/cathay-stories/cathay-pacifics-airbus-a350-things-to-know.html 國泰航空空中巴士A350-1000: 你需要知道的一切
Cathay Pacific becomes second operator of the A350-1000 widebody
May 6, 2024
https://www.mroglobal-online.com/cathay-pacific-becomes-second-operator-a350-1000-widebody/ Paul Loo, Cathay Pacific Chief Customer and Commercial Officer, says: “We already have one of the youngest long-haul fleets in the sky, and with the arrival of the A350-1000, our fleet is only going to get younger. The aircraft follows the successful entry of the A350-900 variant which has enabled us to expand our
