Category: Aviation

Learn from “stupid” question

https://youtu.be/vjDYfvPW4mA https://youtu.be/78-SDJJ9WOA https://youtu.be/h2xjww7Z0hw https://youtu.be/HSRmfNDk87s https://youtu.be/dveUKRVmKTw https://youtu.be/oAHbLRjF0vo https://youtu.be/dSZpwO30lkg https://youtu.be/53wtpyUwvH8 https://youtu.be/b9P1uQziovs 每條問題都可以有啟發…所以以前或者會有話人「咩你條問題咁on9」 但家下讀左aviation 耐左 ,明白到 “no stupid question” 溫故知新 🛫💪🏻 Read More

Tail configuration

https://youtu.be/cU1I7qbWosg 繼續bookmark吾錯既片 日後再睇或者又有啟發 Read More

Pitot-Static instrument

溫返d basic d既野先 https://youtu.be/kdFGbUouE_4 Read More

A350 系列

今晚搵到條好正既片 先從A350 hydraulic system 開始 https://youtu.be/10GaHtTpg-g 睇睇下吾對路 要多d認識再睇 bookmark先 Read More

Engine Displacement

https://youtu.be/90uUdwJBEu4 Read More

Torque v.s Horsepower

https://youtu.be/a3LYCsG02IM https://youtu.be/MBXpB4bDp_o Read More

有趣視頻之: 點解飛機引擎有d small holes ?

https://youtube.com/shorts/cRL6MBTXm3Y?si=oBSMJbAxW4v35m6s Read More

Normal aspirate vs Turbocharger Engine?

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 Read More

DA42 Engine

人地比隻飛機你”玩” 點都要比D誠意…到底DA42既engine 係點? Read More

Engine Detonation & Pre-Ignition

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 Read More

Start the engine

好…家下又溫下aicraft 既engine…到底飛機Engine 點著嫁呢? 呢個問題可以再細分為startup procedure and the working principle of the engine…當然細機同大機有不同原理! 由於每隻機 (吾同Model)都有少少分別…溫下theory~   小型飛機 Ref : https://www.boldmethod.com/learn-to-fly/systems/how-does-a-plane-start/ ; https://www.faa.gov/sites/faa.gov/files/09_phak_ch7.pdf 小型飛機通常有一個Starting System (Ignition system) 去start the engine. It consists of the battery, ignition switch, and a starter motor. Of course, you may say the electrical circuit (lines and switch) is important. In general, we Read More

Hand Propping

Ref: https://www.faa.gov/sites/faa.gov/files/regulations_policies/handbooks_manuals/aviation/airplane_handbook/03_afh_ch2.pdf Hand Propping General aviation aircraft can be hand-propped (manually started) due to a few key reasons: some aircraft are older and lack electric starters, others may have battery issues, and it’s also a method to check for potential hydraulic lock in the engine, according to aviation publications. While electric starters are common, hand-propping remains a Read More

Skid and Slip (on rolling)

通常講skid and slip, 我地都好易聯想起在turn 既時候uncoordinated turn 果個 skid and slip…但實際在rolling 既時候都可能有skid and slip…今日又做下溫習~   我地知道skid and slip係有分別…但點解家下普通airliner 配備既係”anti-skid system” 而不是”anti-slip system”? 呢個問題係幾有趣…首先…我地要從學揸車開始! Understeer (推頭) =  Slip Oversteer (甩尾) = Skid Ball-out Skid Ball-in Slip   之後就要睇下下面呢條片2:39 當braking force 增加到某個程度就會引致Skid (而在飛機進入Skid 之前一定會有一斷slip既時間…但Slip 反而有助stopping the aircraft!) https://youtu.be/TQrBwJWzmAc?si=2as89SBGnTdyz0X7   要睇下家下D飛機既設計! https://youtu.be/vZmS661zijo?si=KGdV4sVmJrRthnP2   https://youtu.be/F3uqUDGKsZQ?si=DH8Zuk60jZdJsyQe Btw…turning after airborne 果個skid and Read More

溫故知新之飛機BRAKE!

過去好似收集過吾同Brake 有關既post…不過好似有D亂…今日一早就睇下吾同”交通工具/載具”既Brake! Private Car: Disc Brake by normal spring mechanism! Bus and Truck : Drum / Disc brake power by compressed air! General Aircraft :  disc brake powered by Hydraulic (but only a master cylinder)! B777, A350 : Carbon Fibre Brakes (disc brake) powered by Hydraulic! B787, A220 : electrically activated braking system – electro-mechanical Read More

Wingtip device : winglet v.s wing fences

https://youtu.be/zWjrEGkpqiE?si=pY-v4dWnjAD7BzBl https://youtu.be/FNqXf6t7e-w?si=0DLCW8ZPclADGnIH Read More

Maximum Distance v.s Maximum Endurance

星期六…下雨天…今日不做運動就又溫下書…每日一點點麻 … Best distance speed (Maximum distance speed) No matter we use distance and range to describe how far the aircraft can fly, we are literally talking about the horizontal distance that the aircraft can cover. Best Glide Speed? (Best Range speed when losing engines) When the aircraft lost its engine(s), the speed and configuration Read More

High Lift Devices

註冊後既呢個禮拜超充實,先係要招待外訪貴賓(LD),又要做系統性風險評估既review, 再玩埋兩日車車,今日係時候準備返做飛機師,晨讀一下~ What’s High Lift Devices? High-lift devices are components on aircraft wings that increase lift, especially during takeoff and landing. Examples? Principles? or Mechanisms? Everything is designed revolving around “lift formula” , for example, movable trailing edge flaps can further divided into various categories: What about leading edge devices? thx for the internet, we can Read More

What’s AOI (Angle of Incidence)?

angle of incidence (AOI) is the angle between the wing’s chord line (an imaginary line from the leading edge to the trailing edge of the wing) and the aircraft’s longitudinal axis (a line running from the nose to the tail). It’s a fixed angle built into the aircraft’s design, unlike the angle of attack, which Read More

Standard Mean Chord (SMC)/ Mean chord line v.s Mean Aerodynamic Chord (MAC)?

SMC / Mean chord line often used in aircraft design, is a geometric parameter representing the average chord length of a wing. It’s calculated by dividing the wing’s surface area by its span, effectively representing the chord of a rectangular wing with the same area and span. While SMC relates to the wing’s overall geometry, Read More

Folding wingtip 777-X

https://youtu.be/K9k0Y8t9NOU?feature=shared https://youtu.be/y_9gUT2Tk8o?si=0e2sjnahm6EBZnIB https://youtu.be/RcpL7wzYRng?si=c2J_lCPNqNHHhIsm Read More

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