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。」105Please respect copyright.PENANAag2qEL9PPu
105Please respect copyright.PENANAmLmTHSNEp9
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?105Please respect copyright.PENANAqjr9H8NJMr
105Please respect copyright.PENANAqGpgbzTbcJ
「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。」105Please respect copyright.PENANAgTsybhmBZh
105Please respect copyright.PENANAAADsU09cd8
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。105Please respect copyright.PENANAGALfCtm1cL
105Please respect copyright.PENANATOpa2JwNKB
「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。」105Please respect copyright.PENANAY4BJLUPQAe
105Please respect copyright.PENANA3J0xeLMyUw
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。」105Please respect copyright.PENANAjUu3f51oYr
105Please respect copyright.PENANA42l3Ec7oAc
Leo 在白板上寫下幾個關鍵時刻:105Please respect copyright.PENANAi3NJT1UTkN
起飛、轉彎、降落、過度操控,這些情況一定要特別留意。105Please respect copyright.PENANAYnIUBZMNZz
105Please respect copyright.PENANArcXxQZtUNQ
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。」105Please respect copyright.PENANAsDd1uP9Zwf
105Please respect copyright.PENANADzdOONa1DX
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。」105Please respect copyright.PENANAycBs5G2tYD
105Please respect copyright.PENANA1HwekSX4HG
我深吸一口氣,仔細記住這些要點,然後點頭:「明白了,現在……」105Please respect copyright.PENANA7v5VzTfnbb
105Please respect copyright.PENANA9IXDG1pQev
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。」105Please respect copyright.PENANAHVDK3xlwsM
105Please respect copyright.PENANAkCFElrp7yj
105Please respect copyright.PENANAXmzx3X77xW
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。」105Please respect copyright.PENANAH34xGVYw9G
105Please respect copyright.PENANA0Sg4IV7ZH1
H – Height:確認飛機有足夠的高度恢復失速,通常至少 2500ft以上。105Please respect copyright.PENANAmpKDQk7aTy
A – Airframe Configuration:檢查襟翼(Flaps)、起落架(Landing Gear),確認設定是否適當。105Please respect copyright.PENANAnKboFPsrKA
S – Security:確保 Doors & Hatches 關閉,安全帶繫好。105Please respect copyright.PENANAjIKqusm1CZ
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)。105Please respect copyright.PENANAqi472MjeTq
L – Location:確保飛機不在人口密集區域上空,以免影響地面安全。105Please respect copyright.PENANAXB6xsatiNo
L – Lookout Turn:進行 360° 觀察,確保周圍空域無其他飛機。105Please respect copyright.PENANAtvvfWKZaWk
105Please respect copyright.PENANAZqztj4q1QZ
「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。」105Please respect copyright.PENANA726KKGzDWd
105Please respect copyright.PENANA2qTmq3UmOU
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。105Please respect copyright.PENANAFiPH7HBedG
105Please respect copyright.PENANAv3DDCDEURB
「這就是 Slow Flight。」Leo 說:「現在試著轉彎,感受機翼的反應。」105Please respect copyright.PENANAlLRbkAWYan
105Please respect copyright.PENANALoZ3wtAUcv
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。105Please respect copyright.PENANARF0EmxkBoL
105Please respect copyright.PENANA9GqtNRZIIg
「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。」105Please respect copyright.PENANAGqaRKRMMAE
105Please respect copyright.PENANAO6ffIocyQT
「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。」105Please respect copyright.PENANAgW4CgZR4g2
105Please respect copyright.PENANAGLXggZzDZ9
「我們回到 Clean Configuration,開始 Basic Stall。」Leo 說。105Please respect copyright.PENANAFUaXrYB3Tr
105Please respect copyright.PENANAtZqDmiQtg6
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。105Please respect copyright.PENANA7X0bcn03gS
105Please respect copyright.PENANAbmtGcbFWxJ
「嘟——嘟——嘟——」105Please respect copyright.PENANAuY3Klz0M7c
105Please respect copyright.PENANAlhvFLxO9uS
這一刻,我的大腦告訴自己:保持冷靜,按照訓練來恢復!105Please respect copyright.PENANABnVbSFVpqi
105Please respect copyright.PENANAwVVrVrDJjQ
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!105Please respect copyright.PENANA4Yij8NZAO5
105Please respect copyright.PENANAFD3Tdgvhka
「Release back pressure!降低 AOA!」Leo 立刻糾正。105Please respect copyright.PENANA6KOgItAQW8
105Please respect copyright.PENANAj5yfTlRnn2
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!105Please respect copyright.PENANAHiviQpmcit
105Please respect copyright.PENANA3Qgoa6swfz
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。105Please respect copyright.PENANADuuXcUKsI0
105Please respect copyright.PENANA2gE1ydso1e
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。105Please respect copyright.PENANAaaN9O4U2dy
105Please respect copyright.PENANAs3CYvTbeFd
幾秒鐘後,失速徵兆消失,機頭回到水平姿態。105Please respect copyright.PENANAiqM9MDuqym
105Please respect copyright.PENANASwK4qTDg4p
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。105Please respect copyright.PENANA1aAPg10ZbU
105Please respect copyright.PENANAWc8Xib7ypd
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?」105Please respect copyright.PENANACoE5qEbVRV
105Please respect copyright.PENANAaMbNcR2UQC
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。」105Please respect copyright.PENANAAZCuKZiFP3
105Please respect copyright.PENANAibHmDS0f1i
105Please respect copyright.PENANAKVJaOfKSl3
「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。105Please respect copyright.PENANAwWyn0Dt3ZK
105Please respect copyright.PENANAXUSef9XR3L
「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。」105Please respect copyright.PENANA1sBCBoAItV
105Please respect copyright.PENANAL70Qa5qaxY
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。105Please respect copyright.PENANA9geicwjpi7
105Please respect copyright.PENANAUdynmwgjAY
Leo 說道:「恢復方法還是一樣——降低 AOA,推油門,讓空速回升!」105Please respect copyright.PENANAtcGQjAvgpl
105Please respect copyright.PENANA7TQyTMvUl3
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。105Please respect copyright.PENANAGY88x3Kxh6
105Please respect copyright.PENANAQyihbOs5LD
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。105Please respect copyright.PENANAtmMN4XLIqF
105Please respect copyright.PENANAGtMsxw6Orf
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。」105Please respect copyright.PENANA85xQPfACne
105Please respect copyright.PENANAzQzHPeyeei
「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。」105Please respect copyright.PENANAShwZF60PCJ
105Please respect copyright.PENANAeRgaZchc2O
105Please respect copyright.PENANAtkuqVj82a0
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。105Please respect copyright.PENANAVYuzR6ggD3
105Please respect copyright.PENANAir82FrZLbE
「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。105Please respect copyright.PENANA80unrQij5y
105Please respect copyright.PENANA0A7pUWzTEs
「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。」105Please respect copyright.PENANAf4kvmjLnD6
105Please respect copyright.PENANAjCydxiO8rT
105Please respect copyright.PENANAL3LrSLz41j
「準備好了嗎?」Leo 問道。105Please respect copyright.PENANAPxRkB6Ta3c
105Please respect copyright.PENANAAIhiOwW5SJ
「準備好了!」我回應,心跳稍微加快,但這次,我知道該如何應對。105Please respect copyright.PENANAuWzN6ktB4w
105Please respect copyright.PENANAZAsd4GSKqq
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!105Please respect copyright.PENANAck4Tj1W3RU
105Please respect copyright.PENANAlv9GYkBigi
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。105Please respect copyright.PENANA6MdalRdAPT
105Please respect copyright.PENANAHgS6CykcWf
「降低 AOA,High Rudder!」Leo 提醒。105Please respect copyright.PENANAYomeBeey0i
105Please respect copyright.PENANAr2tt26EpWN
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。105Please respect copyright.PENANAqm0ofyNKfq
105Please respect copyright.PENANAVY1go1trlD
「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!」105Please respect copyright.PENANAjXFhS3YtZ5
105Please respect copyright.PENANAV3N9hTPkwV
105Please respect copyright.PENANAAWSJQTsJj1
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。105Please respect copyright.PENANAYaujrgEIn8
105Please respect copyright.PENANAKGZBYZM2RE
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。105Please respect copyright.PENANAAgfJkWJRSq
105Please respect copyright.PENANAL1iLuYKh2H
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。105Please respect copyright.PENANAB3nA5HlAX5
105Please respect copyright.PENANAOTcLVHd8Jr
這一天,我比昨天更加接近真正的飛行員了。