今天的飛行項目比之前更具挑戰性,Leo 一早就告訴我:「今天我們要練習 Slow Flight、Basic Stall、Advanced Stall,還有 Wing Drop Stall。」87Please respect copyright.PENANAZDWgKAbxOE
87Please respect copyright.PENANAw10k7PBw5v
光是聽到「失速(Stall)」這個詞,我心裡就有些發毛。從開始學飛以來,我一直被教導要保持足夠的飛行速度,以避免失速。現在,Leo 卻要我刻意進入失速狀態?87Please respect copyright.PENANA5SegcS3jSK
87Please respect copyright.PENANA6LBchxLgea
「不用擔心,這些都是訓練飛行員如何正確應對失速。」Leo 笑著說:「如果你知道怎麼恢復,就不用害怕。」87Please respect copyright.PENANAS2GOq2CiL5
87Please respect copyright.PENANA9nvtdH8fD7
他讓我坐下,然後開始了一場 30 分鐘的簡報,簡單講解 什麼是失速(Stall),以及 哪些情況最容易發生失速。87Please respect copyright.PENANAwZFnFMFM1q
87Please respect copyright.PENANA6RGehPACBI
「失速並不是指發動機停轉,而是機翼失去升力的狀態。」Leo 在白板上畫了一架飛機的翼剖面:「當Angle of Attack, AOA超過臨界角,氣流無法順利流過機翼,升力就會急劇減少,飛機進入失速。」87Please respect copyright.PENANAnENYdZwwyS
87Please respect copyright.PENANAx7izRdVvx9
他指著翼剖面上的氣流:「Remember LIFT=IAS x AOA。當飛機速度過慢,或者機頭抬得過高時,攻角增加,升力減少,最終導致失速。 這種情況如果發生在低空,比如起飛或降落時,可能會非常危險。」87Please respect copyright.PENANAF5auaY5OyS
87Please respect copyright.PENANAZDUgj34tbG
Leo 在白板上寫下幾個關鍵時刻:87Please respect copyright.PENANAUtQ4AqazOr
起飛、轉彎、降落、過度操控,這些情況一定要特別留意。87Please respect copyright.PENANAgI674dvx9L
87Please respect copyright.PENANAzg3YaMmHrP
Leo 在白板上寫下「如何辨別失速?」然後簡單說道:「空速下降、操控遲鈍(Sluggish)、機身顫抖(Buffeting)、Stall warning horn警報響起,最後機頭或機翼可能突然下墜,這些都是失速的徵兆。」87Please respect copyright.PENANA1ZLsOJOBVO
87Please respect copyright.PENANA3eACzrX0an
Leo 放下筆,望著我:「當你注意到這些徵兆時,你就知道飛機正處於臨界點。關鍵是——你要知道如何正確恢復,而不是驚慌。」87Please respect copyright.PENANAuL9w5TZTUl
87Please respect copyright.PENANAzDaloKrRXZ
我深吸一口氣,仔細記住這些要點,然後點頭:「明白了,現在……」87Please respect copyright.PENANA5Oxg95rK55
87Please respect copyright.PENANAW27IUB1pIF
Leo 露出一抹笑意,站起身來:「沒錯,現在就讓你真正感受失速的感覺。」87Please respect copyright.PENANAbxD0xDgoyP
87Please respect copyright.PENANAW9i32MPaeB
87Please respect copyright.PENANA4aYGFWKLwT
飛機離開跑道後,我們爬升到安全高度,Leo 看著我,微微一笑:「在進行Slow Flight 和失速訓練前,我們要先做 HASELL Check,確保一切安全。」87Please respect copyright.PENANAJutvbbW9Zo
87Please respect copyright.PENANArCjPvjW6bA
H – Height:確認飛機有足夠的高度恢復失速,通常至少 2500ft以上。87Please respect copyright.PENANAmC8zR5baQ1
A – Airframe Configuration:檢查襟翼(Flaps)、起落架(Landing Gear),確認設定是否適當。87Please respect copyright.PENANA8hp0gjRzZi
S – Security:確保 Doors & Hatches 關閉,安全帶繫好。87Please respect copyright.PENANAQ5YrB26Ygb
E – Engine:檢查 Engine instruments 在綠色區域內,若低於 2000 RPM,開啟化油器加熱(Carb Heat)。87Please respect copyright.PENANAxAgbCwXG7s
L – Location:確保飛機不在人口密集區域上空,以免影響地面安全。87Please respect copyright.PENANAWRlMznhZm4
L – Lookout Turn:進行 360° 觀察,確保周圍空域無其他飛機。87Please respect copyright.PENANAOE08u0d7wR
87Please respect copyright.PENANAgL7YscmgUc
「減油門,維持飛機在接近失速的速度,但不真正進入失速狀態。」87Please respect copyright.PENANAAOmzK6UxHC
87Please respect copyright.PENANAkBF3Bj0msI
我慢慢減少油門,拉升機頭保持高度,看到空速計的指針逐漸下降,飛機開始感覺沉重,操控變得遲鈍,彷彿一切動作都被放慢了一拍。87Please respect copyright.PENANA6nXt26ZchX
87Please respect copyright.PENANAZhRORUCIVF
「這就是 Slow Flight。」Leo 說:「現在試著轉彎,感受機翼的反應。」87Please respect copyright.PENANA3639jR1H9N
87Please respect copyright.PENANASNAXvQs3AG
我小心翼翼地轉動操縱桿,飛機開始慢慢傾斜,但很快我發現了一個明顯的變化——轉彎的半徑比平常短了很多。87Please respect copyright.PENANAZfMWZlDPbk
87Please respect copyright.PENANA1MPXwhADJl
「這是讓你學會在低速狀態下,仍然能夠控制飛機。」Leo 補充道:「降落時,或者在能見度低、迷路、失去方向的情況下,都是在這個速度範圍內進行的。」87Please respect copyright.PENANAD93wChpDgD
87Please respect copyright.PENANAQznH2rb1FY
「好,現在我們來試試真正的失速。」Leo 語氣平穩:「記住,應對失速的方法只有一個——降低 AOA。」87Please respect copyright.PENANAkE77JF5jFD
87Please respect copyright.PENANAKKrcKU0K8c
「我們回到 Clean Configuration,開始 Basic Stall。」Leo 說。87Please respect copyright.PENANARvzuYtRLos
87Please respect copyright.PENANAC83lxyuhYM
我按照指示減油門,讓飛機速度慢慢下降。很快,我開始感受到 Leo 在簡報時說過的失速徵兆——空速計指針下降、操控變得遲鈍、機身開始輕微顫抖,然後刺耳的失速警報響起。87Please respect copyright.PENANAudWm9Da4z3
87Please respect copyright.PENANARnIa1BK9oM
「嘟——嘟——嘟——」87Please respect copyright.PENANAkmzVz4fmwK
87Please respect copyright.PENANAdbYHV83PUJ
這一刻,我的大腦告訴自己:保持冷靜,按照訓練來恢復!87Please respect copyright.PENANAI1wOmOYPZb
87Please respect copyright.PENANA64jcM5JMD4
但就在機頭開始下沉的瞬間,我的身體卻下意識地拉高機頭,試圖「拉回」飛機,結果反而讓失速變得更嚴重!87Please respect copyright.PENANAYr5ecqaLF8
87Please respect copyright.PENANAIrZ38NJspL
「Release back pressure!降低 AOA!」Leo 立刻糾正。87Please respect copyright.PENANAh13DEPdUp7
87Please respect copyright.PENANAC39s7erjZG
機身突然一沉,飛機完全失去升力,機頭急速下墜——這才是真正的失速!87Please respect copyright.PENANAWZGMyzy2Gj
87Please respect copyright.PENANAIZ59jZRaRQ
我強忍著本能的恐懼,終於意識到自己的錯誤。這時候,拉高機頭只會讓攻角更大,讓失速更加嚴重。唯一的辦法,就是讓機頭自然下降,恢復正常的氣流。87Please respect copyright.PENANAsXHbrwEpam
87Please respect copyright.PENANA5byzK6mBBr
我鬆開操縱桿,輕輕向前推,讓機頭下沉。短短幾秒內,空速開始回升,我趕緊推動油門增加動力,然後感覺到操控變得靈敏,飛機開始恢復正常飛行。87Please respect copyright.PENANAMiPTgEySu6
87Please respect copyright.PENANAZBB1EZGf2a
幾秒鐘後,失速徵兆消失,機頭回到水平姿態。87Please respect copyright.PENANADnIdgYH2FQ
87Please respect copyright.PENANAluKanTTgqu
我大口喘氣,額頭滲出冷汗。這只是訓練,卻讓我感受到真正的危機感——如果剛才是在低空,結果可能完全不同。87Please respect copyright.PENANAIsZINwiQi5
87Please respect copyright.PENANANOBppo2jEH
Leo 看著我,微微一笑:「這就是為什麼訓練很重要。遇到失速時,本能地拉機頭。但現在,你知道該怎麼做了吧?」87Please respect copyright.PENANAPGtz2YAFIm
87Please respect copyright.PENANA4LRZx33ZAb
我點點頭,心跳還沒完全平復,但腦海裡只剩下一個念頭:「遇到失速,唯一的應對方法,降低 AOA。」87Please respect copyright.PENANAHnNZDHC6O0
87Please respect copyright.PENANAM9OubZkoqb
87Please respect copyright.PENANA5jBcDyInnr
「I have control。在現實飛行中,很多失速發生在降落過程中,因為這時候飛機處於低速、高攻角,襟翼放下來增加升力,但如果沒控制好,也可能讓失速變得更嚴重。」Leo 一邊講解,一邊調整油門,讓飛機爬升至安全高度。87Please respect copyright.PENANArlZy5oDEVA
87Please respect copyright.PENANAWSQuNdQkOx
「這次,我們模擬進近降落時的失速狀態。2200RPM,White Arc 放下Full Flaps,然後進入失速。」87Please respect copyright.PENANA4UUvCKKS7P
87Please respect copyright.PENANAeJTIQ86A0u
我慢慢放下襟翼,感覺飛機的升力增加了一點,但也變得更容易飄忽不定。我再次拉高機頭,讓空速下降,這次的過程與之前有所不同——由於襟翼會降低失速速度(Stall Speed),所以警報反而比之前更晚才響起。87Please respect copyright.PENANAAxMi7lAZEl
87Please respect copyright.PENANA1b7TkhVqwI
Leo 說道:「恢復方法還是一樣——降低 AOA,推油門,讓空速回升!」87Please respect copyright.PENANAhEGI5asljo
87Please respect copyright.PENANANgF77Xz54q
我立刻鬆開操縱桿,推油門增加動力,等待飛機回復升力,幾秒後,機頭回復可控狀態,飛機恢復正常飛行。87Please respect copyright.PENANARcSNrkFBW9
87Please respect copyright.PENANA1ezYJraS9X
我長長地吐了一口氣,這次的失速比剛才更劇烈,但至少我已經知道該怎麼應對。87Please respect copyright.PENANAw3NUOenVbG
87Please respect copyright.PENANAkApq4ri7Rj
Leo 沒有停下來,而是繼續指示:「現在,我們來試試 Wing Drop Stall,這是很多新手飛行員最容易犯錯的地方。」87Please respect copyright.PENANANEBLQyAvTK
87Please respect copyright.PENANAGkldznKQuX
「這次,我們一樣進入失速,但會刻意製造不對稱的失速,看看機翼如何反應。」87Please respect copyright.PENANAPHU9K7t1EL
87Please respect copyright.PENANAOUm8KiXLPH
87Please respect copyright.PENANAgOx0r8KazZ
Leo 在飛行前簡報中,特別強調了 Wing Drop Stall(機翼下墜失速) 的應對方法。87Please respect copyright.PENANAi14yVLo205
87Please respect copyright.PENANAHPSXVD0Iqb
「當其中一側機翼比另一側先失速時,飛機會開始不對稱下墜,這就是 Wing Drop Stall。很多飛行員的本能反應是用Ailerons來糾正滾轉,但這其實會讓問題變得更糟!」Leo 指著白板上的示意圖。87Please respect copyright.PENANAmZhkIg58rU
87Please respect copyright.PENANAfTJS4XJlWk
「真正的應對方法只有三個步驟:降低 AOA,用Rudder修正滾轉,油門補充動力。」87Please respect copyright.PENANAs353VDvQNC
87Please respect copyright.PENANA31LC1meiIU
87Please respect copyright.PENANAELmwlLEDEv
「準備好了嗎?」Leo 問道。87Please respect copyright.PENANApWXfBTxNoV
87Please respect copyright.PENANAfjpxFsbc5L
「準備好了!」我回應,心跳稍微加快,但這次,我知道該如何應對。87Please respect copyright.PENANAnpKt0eotX0
87Please respect copyright.PENANAcOm2vt8K5j
我推滿油門,拉高機頭,模擬進近降落時的失速狀態,並放下 Full Flaps(全襟翼)。這次,我們故意製造不對稱的失速條件——當飛機進入失速時,左翼率先失速,導致機身向左翻滾!87Please respect copyright.PENANAwC1EiS9TBs
87Please respect copyright.PENANAWitoHM2MXb
幾乎是一瞬間,我感受到飛機快速向左側下墜,機頭朝地面傾斜,旋轉的感覺讓人不由自主地想抓緊操縱桿。87Please respect copyright.PENANATsmkHXMGdf
87Please respect copyright.PENANAbOTzRaNsTC
「降低 AOA,High Rudder!」Leo 提醒。87Please respect copyright.PENANAXZCQHy5KAQ
87Please respect copyright.PENANANrTQcIm8kh
這次,我沒有慌張,而是按照剛才學到的步驟——幾秒後,飛機穩定下來,回復正常飛行。87Please respect copyright.PENANA6QNdcM43bv
87Please respect copyright.PENANAYbL9wp2FoB
「做得好!這就是正確的應對方式!」Leo 露出滿意的笑容:「剛才如果你用副翼修正,飛機可能已經進入Spin了。方向舵才是你最好的工具!」87Please respect copyright.PENANAGmldI3xY1i
87Please respect copyright.PENANAEOuFOGvU1t
87Please respect copyright.PENANAQ8kjjriT26
這次的訓練比我想像中更具挑戰性,但也讓我學到了最重要的一課——正確的反應,勝過本能的反應。87Please respect copyright.PENANAuX7HOgCU9D
87Please respect copyright.PENANANYqCnxUt82
當飛機穩穩降落在跑道上,我才發現,我的雙手已經比剛才穩定了許多。87Please respect copyright.PENANA4X7mh1RpxF
87Please respect copyright.PENANAdH9ODa6qHS
今天,我不僅學會了如何應對 Power-On Stall,還掌握了 Wing Drop Stall 的正確處理方式。87Please respect copyright.PENANApu3BobotRt
87Please respect copyright.PENANAf7XSF7yLF1
這一天,我比昨天更加接近真正的飛行員了。