溫故知新系列之: 點解新飛機都係黃黃綠綠 (Aircraft Structure)

August 24, 2025

星期天又是輕鬆得黎要認真既一日, 溫下書…又學多一點點~

Unpainted Boeing 767 Freighter Aerial View

點解新飛機都係黃黃綠綠?

The paint used is a green zinc chromate or zinc phosphate primer, which manufacturers apply to newly built aircraft to prevent corrosion.

無意中又發現，原來HX (Hong Kong Airline) 係A350 launch airline

https://www.airbus.com/en/newsroom/press-releases/2017-09-hong-kong-airlines-becomes-new-operator-of-the-a350-xwb

好…今日就簡單溫下 Chapter 3 : Aircraft Construction

咩係Aircraft? (又係back to basic 系列?) …突然唸返讀AOM 果陣學既野!

https://applications.icao.int/postalhistory/annex_7_aircraft_nationality_and_registration_marks.htm#:~:text=According%20to%20Annex%207%20%2D%20Aircraft,heavier%2Dthan%2Dair%20craft.

Aircraft is defined as any machine that can derive support in the atmosphere from the reactions of the air other than the reactions of the air against the earth’s surface

According to Annex 7 – Aircraft Nationality and Registration Marks to the ICAO Chicago Convention, an aircraft is defined as any machine that can derive support in the atmosphere from the reactions of the air other than the reactions of the air against the earth’s surface. It is a generic term.

The classification of different types of aircraft is provided hereafter according to the same Annex 7:

Lighter-than-air aircraft: Any aircraft supported chiefly by its buoyancy in the air. It includes:
Non-power-driven balloons (free balloons, and captive or tethered balloons), and
Power-driven airships.
Heavier-than-air: Any aircraft deriving its lift in flight chiefly from aerodynamic forces. It includes:
Non-power-driven aircraft (gliders and kites), and
Power-driven aircraft (aeroplanes, rotorcrafts such as gyroplane and helicopters, and ornithopters).

Many classifications of aircraft are conceivable. On the basis of ICAO’s classification, let’s define a few words taken from Chapter 1 of Annex 7. An aeroplane or airplane is an aircraft, deriving its lift in flight chiefly from aerodynamic reactions on surfaces which remain fixed under given conditions of flight; it is the generic term describing most heavier-than-air craft.

嘩…搞到好複雜…簡單D… my words: a heavier-than-air machine which can maintain in the atmosphere from aerodynamic reactions

至於點解要搬ICAO 條 Chicago Convention 出黎…係因為香港第448章《民航條例》Cap. 448 Civil Aviation Ordinance根本無定義過咩係aicraft…但有提Power to give effect to Chicago Convention and regulate air navigation

https://www.elegislation.gov.hk/hk/cap448!en-zh-Hant-HK

Chicago Convention (《芝加哥公約》) means the Convention on International Civil Aviation which, on 7 December 1944, was opened for signature at the International Civil Aviation Conference held at Chicago;

至於少少BACKGROUND TIM 啦… International Civil Aviation Organization (ICAO) is the International Civil Aviation Organization is a specialized agency of the United Nations that coordinates the principles and techniques of international air navigation, and fosters the planning and development of international air transport to ensure safe and orderly growth.

以USA 為例，每一隻出廠既飛機都由FAA cert左 – Type Certificate (TC) : means the aircraft complies with the applicable airworthiness standards. When the TC is issued, a Type Certificate Data Sheet (TCDS) is generated that specifies the important design and operational characteristics of the aircraft, aircraft engine, or propeller. The TCDS defines the product and are available to the public from the FAA website at www.faa.gov.