Angle Of Incidence Aviation Explained - [angle of attack and wing washout].

In this video, we are going to talk about the Angle of Incidence (A.O.I) in aviation,
You will learn what it is, the difference compared to the angle of attack, and how this angle varies within the Aircraft wing.
In order to understand in full this topic, we need to talk about the longitudinal axis and the chord line.
The longitudinal axis of an aircraft is the imaginary line that runs from the tail to the nose passing through the center of the fuselage, the Chord Line is the imaginary straight line that runs from the leading edge to the trailing edge of an Airfoil.
The Angle of Incidence is the angle between the Longitudinal Axis of the Aircraft and the wing chord line.
This angle is fixed, however, the angle of incidence can decrease from the wing root to the tip, this is called wing washout.
By having a smaller angle of incidence at the wingtips you will have a smaller angle of attack (angle between the wing chord line and the relative airflow) for a given phase of flight.
This is so mainly for two reasons:
1. Compensation for early stall due to a higher level of loading experienced at the wingtips.
2. Flight controls effectiveness, due to the higher angle of incidence the wing root will stall first, and since the flight controls are normally located at the wingtips you will still be able to control the plane at the early stage of the stall.
If you want to know more about aircraft climbs watch the following videos:
Vx vs Vy : • Vx vs Vy Climb Speed [...
Step Climb: • Step Climb Explained -...
Climb Gradient: • Climb Gradient Explain...
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Disclaimer:
THIS VIDEO IS FOR ENTERTAINMENT PURPOSES ONLY.
NOT FOR REAL-LIFE OPERATIONS.
PLEASE REFER TO THE OFFICIAL MANUAL AND DOCUMENTATION.
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[@marlemmagana6395]

Grazie! Very helpful!

[@PILOTCLIMB]

Let me know in the comment below if you have any questions!! Happy Landing!!

[@dwdwrap489]

Thanks captain!!

[@user-kx9im1oo1i]

Thank you brother 😊

[@PILOTCLIMB]

You are very welcome!

[@gianlucaorru2737]

Queste lezioni interattive sono fantastiche . Grazie di tutto CPT ! Well done 👍🏻

[@PILOTCLIMB]

Grazie!!! Él un piacere aiutarti

[@aayaanalisayed7790]

niceee thx

[@PILOTCLIMB]

You are very welcome

[@ahmedsmart1120]

Hello Captain, Thanks for this video. This topic is a little bit hard to undersrand. My suggestion is to prepare drawings before you make the video. The last part with flight control effectivness is difficult to imagine without drawings.

[@PILOTCLIMB]

Hey, many thanks for your feedback, I hope you are doing well.. I will take your advice into consideration for the next video!! Was the angle of Incidence explanation clear to you?? Have a great day Gabriele Pilotclimb

[@jakew9887]

Excellent presentation. Thanks

[@PILOTCLIMB]

You are very welcome

[@eyesquish485]

if you have 3 degrees angle of incidence at the root and 0 degrees at the tip, what is typical across the center of the wing? Just wondering if the tip has an abrupt change, of it is gradual across the wing ribs to the tip?

[@evanpalmerston445]

Thanks for the aerodynamics lesson. I was looking for info on the angle of incidence on RC aircraft specifically how to measure it on a factory built "Ultra Stick" above wing pattern model. In order to make the 2 piece wing seat in the wing saddles correctly I've had to modify the fuselage and the wing mounting pins (LE) in order for it to seat properly. It's a symmetrical wing design so it's capable of inverted flight and other high alpha maneuvers. How would I measure the angle of incidence? I understand that with a symmetrical wing in order to generate lift in forward flight you have to increase the angle of incident. This is the spec I need, Thank you.

[@PILOTCLIMB]

You are very welcome

[@adolfconradigharas439]

Thankyou for this brother, this is really helpful. May you always follow GOD's guidance. Keep safe.

[@PILOTCLIMB]

You are more than welcome! Thank YOU for watching!

[@raedjoiny5051]

Hi are the angel of incidence shud be in All wings types like flat bottomed wing or symmetrical wing?

[@PILOTCLIMB]

Hey, Many thanks for watching and the comment!! Usually the planes have some sort of angle of incidence, however I cannot say if there a type of Aircraft with 0 angle of Incidence..

[@rameshkundgol1625]

Sir , during descent which reference to be used to measure height above aerodrome Radio altimeter or barometric altimeter adjusting to QFE?

[@PILOTCLIMB]

During descend you should use QNH and subtract the Airfield elevation to your altitude, at low heights (below 2500ft) you could use the RA.. Thanks for watching

[@mohammedredhadjoudi1911]

What is the angle of attack during descent?

[@PILOTCLIMB]

The same as the angle of attack during climb or cruise

[@mohamedkassim1515]

is wash out referring to the way the AC is manufactured, like the root of the wing is built to have a lesser angle of incidence? And can you also explain the term "wash in" as well as the difference of the two. Thank you

[@mohamedkassim1515]

And is wash in and wash out accomplished by use of ailerons??

[@PILOTCLIMB]

Hey, many thanks for watching! Sorry for answering you late! So, the wing wash out of a specific aircraft is made by the manufacturer. You have a wing washout when the angle of incidence at the wingtip is LOWER than the angle of incidence of the wing root. The wash in is the opposite of the wash out. So, the wing tip will have a higher angle of incidence compared to the wing root. Let me know if I answered you question! I wish you a great weekend

[@mohamedkassim1515]

@@PILOTCLIMB is this referring to how the aircraft was manufactured or the use of flight controls?

[@fabrinotturno6831]

Salve Gabriele! Immagino tu sia italiano, per cui ne approfitto per scriverti in italiano, altrimenti possono riscrivere il messaggio in inglese: sono uno studente che sta preparando l’esame di aerodinamica all’università ed i tuoi video mi sono molto utili. Tuttavia, in merito all’angolo di attacco, ho un piccolo dubbio: l’angolo di attacco è, come giustamente hai detto, l’angolo che vi è tra la corda dell’ala e la direzione della corrente asintotica che colpisce l’ala. Mi stavo chiedendo però una cosa. Sappiamo che la corrente d’aria non ha necessariamente una direzione orizzontale, che corrisponderebbe per forza a quella dell’orizzonte, ma, se l’aereo per esempio è in salita, può avere anche una direzione inclinata, o addirittura può essere verticale se consideriamo un aereo da caccia o uno Shuttle che volano in verticale per esempio. Quindi, sia che stia in orizzontale, in salita, o in verticale, non vi dovrebbe essere un differenza di angolo d’attacco, perché, nel frattempo che cambia l’inclinazione dell’ala e quindi della relativa corda, è cambiata anche la direzione da cui proviene l’aria che la colpisce e quindi l’angolo rimane lo stesso. Ma allora qual è il momento preciso in cui l’angolo d’attacco cambia? Da quel che ho capito, dovrebbe cambiare non appena si compie una manovra di beccheggio per sollevare o abbassare il muso dell’aereo, cioè in quello spazio ristretto di tempo che porta appunto un aereo da stare per esempio in orizzontale a stare stabilmente inclinato di un certo angolo, dopodiché, una volta acquisito il nuovo assetto, l’angolo d’attacco potrebbe tornare come prima. Tu mi confermi? Però, anche se fosse così, immaginando un aereo che riceve una spinta da un getto nella parte posteriore, come mai, non appena si compie una manovra di beccheggio per portare il muso, che è davanti, in alto, e quindi il getto, che è dietro, verso il basso, la direzione della corrente d’aria non cambia immediatamente? Se, non appena ho ruotato l’aereo, il getto punta leggermente inclinato verso il basso, dovrebbe subito spingermi inclinato verso l’alto, e quindi dovrei avere subito un cambiamento della direzione della corrente che ne consegue. Invece non accade subito, altrimenti non ci sarebbe il cambiamento dell’angolo di attacco. Perché non accade subito? Anche qui ho supposto che, a causa dell’inerzia, per passare da un assetto a un altro, ci voglia un po’ tempo, quel tempo necessario affinché appunto l’angolo d’attacco cambi. Volevo sapere se avessi ipotizzato bene. Ti ringrazio moltissimo dell’attenzione e della risposta in anticipo!

[@PILOTCLIMB]

Ciao, bella demanda.. Per risolvere il tuo dubbio prova a pensare al flusso relativo... Quando avanzi, con angolo d' attacco 0 diciamo, hai il flusso orizzontale che bagna il tuo profilo, in salita hai una parte di flusso relativo (quella che già avevi in precedenza) e una parte parte che sarà sempre parallela al tuo assetto... prova a fare una ricerca sui flussi relativi di un aereo in salita...spero averti aiutato

[@fabrinotturno6831]

@@PILOTCLIMB Grazie davvero per la risposta! Va bene, proverò a cercare!

[@goodboyringo9716]

If he only would have slowed down just a little .

[@Mia-mf2us]

how do you calculate angle of incidence?

[@PILOTCLIMB]

The optimum angle of incidence for a specific aircraft is calculated by the manufacturer..

[@peterlazuric5641]

Don't be so hard on yourself about your aircraft drawing. It kind of looks like the profile of an F-117 🤣

[@PILOTCLIMB]

I'm getting better!!😀Veeery slowly... Many thanks for watching!! I hope the video helped you..