PUDSUC – 口訣 : pitot static blockages
Reference: Instrument failure: the test of trust | Flight Safety Australia PUDSUC A pitot blockage will cause airspeed to underread on descent (vice versa on climb). A static blockage will cause airspeed to underread on climb (vice versa on descent).
[GA piston engine] What’s full throttle height?
Full throttle height – Depending on the power setting, as an aircraft climbs (fitted with a fixed-pitch propeller), a height is reached eventually where the throttle will be fully open to maintain that power setting. Important concept: An aicraft can have various power setting! Each power setting has a full-throttle height! Read more
[GA Piston Engine] Effect of Increasing Height on Power Output
(On a ‘standard’ day) Aicraft climbs / fly high –> output of the engine decreases for two reasons: decrease in atmospheric pressure – reduces the manifold pressure and thus the flow of air into the cylinders (a similar effect to closing the throttle) – can be compensated for by progressively opening the throttle decrease in
Too lean, Too rich, CCM, Best power, Best economy
Notes: The carburettor measures the weight of air passing through the induction manifold and uses this measurement to regulate the amount of fuel discharged into the air stream (according to a predetermined schedule). What’s rich, lean and CCM? Rich: 1:8 Chemically Correct fuel/air Mixture (CCM): 1:15 Lean: 1:20 In theory, the ‘correct’ quantity
Cathay Stories: A pilot explains the art of the go-around
A pilot explains the art of the go-around | Cathay (cathaypacific.com)
Cathay Stories: Why (and how) we select alternate airports before departure
How we fly: choosing alternate airports | Cathay (cathaypacific.com)
CX fuel – Greener Together: Switching to Sustainable Aviation Fuel (SAF)
Also ref: Cathay Pacific launches Asia’s first major Corporate Sustainable Aviation Fuel (SAF) Programme – Cathay Pacific April 20, 2022 — Cathay Pacific is launching its pilot Corporate Sustainable Aviation Fuel (SAF) Programme, the first major programme of its kind in Asia. The SAF used for the launch of this programme is made from used
CX Management Team
Reference: Management team | Cathay Pacific Patrick Healy has been Cathay Group Chair since November 2019. He is also Chair of Swire Coca-Cola Limited, a Director of John Swire & Sons (H.K.) Limited and a Non-Executive Director of Swire Properties Limited. Prior to his appointment, Patrick was Managing Director of Swire Coca-Cola Limited in Hong Kong,
飛機既避雷針叫咩？
Static wick Static wicks, also called static dischargers or static discharge wicks, are devices used to remove static electricity from aircraft in flight. They take the form of small sticks pointing backwards from the wings, and are fitted on almost all civilian aircraft.
Region of “Reverse Command”
Speed region below the speed for minimum power/maximum endurance is called the region of reverse command. In the region of ‘reverse command’, if speed is increased (by decreasing the angle of attack), then unless engine power is reduced, the aeroplane will climb (due to the surplus of engine power at the higher speed).
