有趣視頻之： 點解飛機引擎有d small holes ?
August 7, 2025
Normal aspirate vs Turbocharger Engine?
August 7, 2025
今個早上繼續努力 讀書 我要做飛機師 🙈 首先，engine air induction 空氣有分normal aspirate and turbocharger 之後，就算turbo engine 都再分 supercharge and turbocharge, let’s get started 🙃🤪 Turbo vs Supercharger 先睇車既 https://youtu.be/DhTxCA65KWo https://youtu.be/iS0XxIcdcu4 再睇飛機既 https://youtu.be/o_MQ-5-Gii8 https://youtu.be/Xp0Vx8rVISc
Engine Detonation & Pre-Ignition
August 4, 2025
今日溫書…繼續Engine先~ 睇一下上年差吾多時間既發文…再收集一下新野: 溫故知新~ 我要揸飛機 XDDD 有一句說話好真…書第一次讀係知…第二、三、四、五次讀先會識…以前我真係讀書…知道佢UP咩…但未識…今晚一個人安靜下…睇返之知自己入左誤區都吾知 >3<” 今晚就一文搞清楚某D Terms 既分別! Reciprocating Engine v.s Turbine Engine Reciprocating and turbine engines differ primarily in their mechanism for converting fuel energy into motion. Reciprocating engines use pistons that move back and forth in cylinders, converting combustion pressure into rotational motion. Turbine engines, on the other hand, use
Types of Precipitation?
July 27, 2025
今日又溫下書…到底有咩類型既precipitation? 首先， what’s precipitation? 根據FAA PHAK chapter 12 (天氣果課書）： Precipitation refers to any type of water particles that form in the atmosphere and fall to the ground. 睇返之前 收集既一個wmo網頁，天氣現象大致分為：水、光、電、塵相關 Types of meteors (WMO) 而同水有關既可以睇呢個網： https://cloudatlas.wmo.int/en/hydrometeors.html Precipitation 係指 11類 falling particles (b) Falling particles (precipitation) 1. Rain : water droplets, but not drizzle
Change status of water
July 26, 2025
#Solid #liquid #gas #melting #evaporation #condensation #freezing #sublimation #deposition
點解會落雹 What’s hail?
July 26, 2025
話說琴晚黃昏就收到天文台特別天氣提示話會落雹可能，難道有冤情？ 🙂 都可能係 就係點解我仲未做到飛機師 因為我讀書未夠？ 咁就溫下書～ Hail is formed in strong thunderstorms when supercooled water droplets freeze onto ice pellets, which are then carried by powerful updrafts within the storm cloud. These ice pellets, or hailstones, grow larger as they repeatedly collide with more supercooled water droplets, eventually becoming too heavy to be supported by the updraft
Cloud formation: Bergeron-Findeisen theory (Icing) v.s Coalescence theory (Water droplet)
July 20, 2025
https://youtu.be/6WjU0kwu_ew?si=Kvf5LqleDUzpKo8b Cloud Formation
Cloud Formation
July 20, 2025
https://youtu.be/q87Ekar3emA?si=EN2zl3qUX1OmIcsh Read More https://www.britannica.com/video/process-cloud-formation-factors-surface-air-water/-203821 Cloud formation: Bergeron-Findeisen theory (Icing) v.s Coalescence theory (Water droplet) Cloud formation 夠竟係吸定放latent heat? Clouds 雲
Oktas – reporting the amount of cloud in the sky
July 20, 2025
https://worldweather.wmo.int/oktas.htm Oktas Definition Category 0 Sky clear Fine 1 1/8 of sky covered or less, but not zero Fine 2 2/8 of sky covered Fine 3 3/8 of sky covered Partly Cloudy 4 4/8 of sky covered Partly Cloudy 5 5/8 of sky covered Partly Cloudy 6 6/8 of sky covered Cloudy 7 7/8 of
點解ATIS 要點Temperature and Dew Point?
July 20, 2025
今日打風溫書…簡接溫故知新~ 下面有個ATIS 實例…有T 28 /DP 26 要推算Cloud Base = T-DP * 400 = (28-26)*400 = 2* 400 = 800 feet AGL 再反推Relative Humidity (RH) = 100 – (T-D) *5 = 100 – (28-26) * 5 = 100 – 10 = 90% 呢兩條Rule of thumb 係work 既~
Calculation of Freezing Height
July 20, 2025
The Bradbury Rule Example: OAT 10 degree C ; DP 7 degree C Calculate Cloud Base T – DP * 400 = (10-7) * 400 = 1200 feet AGL Calculate Freezing layer DP / 1.8 * 1000 = 7/1.8 * 1000 = 3889 feet AGL Freezing height 1200 + 3889 = 5089 feet AGL This
