Category: Aviation

Pilot sharing and group work

This evening, I deeply thanks that a pilot shared with us by using scenario and group work. Let me briefly type what I have learnt this evening ~ CLEAR model Clarify the issue or question – ident problem Look for options Evaluate the options – factors including safety, legality, pax comfort, OTP and Cost. Action Read More

2024-2025 I will, I am going to achieve it!

齊腳, Fly beyond! 2024-2025 I will, I am going to achieve it! 2024-2025 We will, We are going to achieve it! Read More

ETOPS ? EDTO?

https://www.flightglobal.com/cathay-etops-okay/10579.article The timestamp of this article disclosed that CX A330 has already obtained ETOPS 120 in 1996. https://simpleflying.com/etops-banned-areas/ This article gave us some background information about ETOPS, and told us one of the reasons why B747 was popular in 1980s: Before 1985, all twin aircraft had to remain within 60 minutes of a suitable diversion airport. This Read More

口訣勿背錯: True Direction – Magnetic Direction – Compress Direction

Magnetic Direction 東減西加 轉 Compress Magnetic Direction 東加西減 轉 True   Tommy = M+E C = M-E (我無左E就係死屍)   Read More

What’s coffin corner?

Reference:https://airwaysmag.com/coffin-corner-aviation/ , https://www.boldmethod.com/learn-to-fly/aerodynamics/coffin-corner-where-vne-and-mmo-meet/ Ans: Coffin Corner can be explained by using below illustration. It is talking about when when the aircraft fly to an altitude where the aircraft reduces the speed, it will stall while the aircraft increase its speed, it will over the Mmo. Therefore, the margin for error is low.The coffin corner is Read More

What’s Triangle of veolocities?

Reference : HKU Space materials Ans: it is using a vector concept to explain the relationship between HDG/TAS, TMG/GS and WV   Since the wind ‘blows’ the aircraft from its air position (expected final position) to its ground position (actual final position), it is acceptable to assume that if the air position and the ground Read More

What’s fix ? Pinpoint ?

Refer HKU SPACE materials Ans: Fix – the geographical position of an aircraft at a specific time determined by either visual reference to the ground or by navigation aids Pinpoint – fix determined by direct observation of the ground. Read More

Air Navigation

What is the 5 basic elements in air navigation? Ans:  Direction Distance Speed Wind Time   Air navigation can be basically divided into 2 part: Flight Planning and Flight Monitoring. It is talking about foresee and actual! Flight planning First of all, we need to set a route (where are we going to fly to) Read More

How can we know the variation? 

Reference: HKU Space material Ans: get the variation from chart   Isogonal(s) are the lines on map showing equal magnetic variation. Both FAA and Airservices Australia have issued “aeronautical chart user guide”.   Variation in Australia Chart Variation in USA Chart   What’s Variation, Deviation? Read More

What’s Variation, Deviation?

Reference : HKU Space Material True poles are the location of the geographic poles. Rightly, the true north pole is not at same location of magnetic north pole. Variation : angular difference between true direction and magnetic direction Deviation : angular difference different between magnetic direction and compass direction   How can we know the variation?  Read More

Quick fact: Date, Time, Direction in aviation industry

Reference : HKU Space Material Date, Time are taking reference from coordinated universal time (UTC), also known as “Zulu” Time Date: three pair of digit – year-month-day (e.g 010131 -> 2001 Jan 31) TIme: four-figure group – HH:MM (e.g 2300Z, 2359Z, 0000Z) Direction: three way to describe direction – True direction, Magnetic direction, Compass direction; Read More

What’s Heading? What’s Track?

Reference: HKUSPACE Course Heading? Ans: Heading (HDG) refers to the direction in which the aircraft is pointing.   Track? (= Track Required, TR) Ans: Direction over the ground in which the aircraft is required to travel   Read More :- 10 *** Important: Drift is NOT the Track Error. Drift is the difference between heading Read More

What’s UTC?

Reference : HKUSPACE Course Material UTC – coordinated universal time – the time is based on the prime (or 0 degree meridian of longitude) through Greenwich near London. Read More

What’s CAVOK , What’s NCD, NSC

Reference source: https://skybrary.aero/articles/weather-observations-aerodromes CAVOK The visibility, RVR, weather and cloud groups are replaced by CAVOK (Cloud And Visibility OK) when the following conditions exist simultaneously: If there is no cloud below 5000 ft or below the highest minimum sector altitude (whichever is greater) and there is no towering cumulus or cumulonimbus, ‘NSC’ is reported. Note: Read More

一次搞懂 Minimum Safety Altitude, Decision Height and “Go-around Decision Point”

Reference : Skybrary,Boldmethod 話說今晚又飛機友聚會攞到d 靈感,今晚就學幾個生字啦~ Decision Altitude/Height (DA/DH) https://skybrary.aero/articles/decision-altitudeheight-dadh Definition The Decision Altitude (DA) or Decision Height (DH) is a specified altitude or height in the Precision Approach or approach with vertical guidance at which a Missed Approach must be initiated if the required visual reference to continue the approach has not been established. (ICAO Annex 6) Decision altitude (DA) is Read More

How to pronounce “ARFF” – Aircraft Rescue and FireFighting

Ans : 1:30 音係After 既 “Aft” Read More

Fun fact: Why Some Airbus A320s Have Extra Wheels

Read More

What’s landing gear bogie?

Reference: FAA Aviation Maintenance Technician Handbook-Airframe Volume 2 Chapter 13, https://en.wikipedia.org/wiki/Undercarriage_arrangements Multiple wheels spread the weight of the aircraft over a larger area. They also provide a safety margin should one tire fail. Heavy aircraft may use four or more wheel assemblies on each main gear. When more than two wheels are attached to a Read More

Aircraft Recognition

Reference source: https://www.aircraftrecognitionguide.com/ The parts of an aircraft that can be used for recognition: Nose Landing gear Tail cone Wing Engine   B777 B777 major feature: flat, squared off tail cone Boeing 777 has six wheels per leg (main landing gear) typical flat, squared off tail cone Boeing 777-200, -200ER and 300 are not raked Read More

Service ceiling v.s Absolute altitude

Service ceiling 指飛機無再多MAP for climb; Critical altitude 指turbocharged engine 發揮最大壓縮空氣能力既高度 As a normally aspirated aircraft climbs, it eventually reaches an altitude where the MAP is insufficient for a normal climb. This altitude limit is known as the aircraft’s service ceiling Critical altitude is the maximum altitude at which a turbocharged engine can produce its rated Read More

1 7 8 9 10 11
wpChatIcon