As a licensed flight instructor (and rc modler) I must say, great video. You clearly have a good understanding of flight characteristics and can demonstrate/explain it very well. More of these kinds of videos would kick ass. Ok bye.
Excellent explanation! I was also a Grade 1 instructor and now I'm a B767 captain. A point of interest, the advanced flaps such as Fowlers, and leading edge slats, also increase the surface area of the wing and so increase the lift
Totally spot on ... For advanced learners l'd like to add ... Flaps change wing camber & above all wing chord. Meaning increasing angle of attack (AOA) by some 5 degrees despite plane staying in same orientation. Plus control surfaces lose authority at slow speeds &n controls feel mushy
lastly im glad you are making these videos. I am also glad they are simple as most people wont care about the higher complexity stuff. Just try and do a little refresher research to make sure the simplification is not misleading
I don't hobbie in RC aircraft but this is obviously applicable to full sized aircraft. Very clear and concise video with a great host. Thanks very much!
If you think about it, a propeller is nothing more than a rotating wing. It produces lift to create thrust. Bernoulli says that the low pressure area ahead of the prop sucks the plane forward to produce thrust. Newton says the the air is accelerated backward to produce thrust in the same way a jet engine does. Which is true? Both.
The Newtonian component as described around 5:18 violates the law of causality. The theory is that because the air molecule goes down AFTER passing by the wing, it ... goes back in time and pushes up on the wing? That has cause and effect backwards. An air molecule going down AFTER the plane has already gone by can't push on the wing. The lift applied to the wing has to cause the air molecule to be directed downward later. Simply because a cause always happens BEFORE the effect. So the two components are the Bernoulli portion and the AoA portion. Anything that happens later, AFTER the air has passed the wing, has to be an effect, not a cause. Folks fall into the "air goes down afterwards" mistake when they realize that the Bernoulli component can't be the only component - some planes can fly inverted. There's no need to fall into that though - you can recognize that inverted flight requires AoA. It requires that the air be forced down WHILE in contact with the wing, because the wing is angled, because the wing is positioned as a wedge while in inverted flight.
A BIG BIG BIG THUMB UP !!! - I really enjoy your videos, as a X-Plane Sim Pilot, and real life Skydiver with over 200Jumps, this is total perfectly brought to the point. Will be watching your videos in future! Keep things going on, like this! Cheers from Germany.
Fantastic Explanation! I am a multiengine and instrument rated private pilot and I have never heard such an in depth explanation about flaps before even though I have gone through years of study. Great job! Keep the videos coming. Jake from the USA.
Simply excellent Bruce! I enjoyed this very much. I just don't see how anyone could give this a thumbs down. Free and accurate information presented well. Probably five of the "Old Sore Heads" just pouting.
Bruce you gave a great presentation today on flaps. I had read an article last weekend about flaps and your pictorial explanation helped my understanding even more. Great job!
We are not asking for a physics dissertation here but an understanding that works. Your explanation gets the point across very well. Let the egg heads prepare a complex video with angle of attack and other variables that will put viewers to sleep. This certainly helped me to understand the concepts he was trying to convey and I thank him for it.
I'm trying to build a plane in ksp, and this really helped. I had no clue what flaps were for, or even what direction to angle them before watching this video.
Disregard my last comment. It wasn't your video but my computer. I tried again and it worked really good and was able to watch your video. Thanks for taking your time to share your knowledge with your subscribers.
Thank you. I learned new things today. I've always know how wing works with Bernoulli principle but for the Newton principles, it's the first time for. Very precise and clear explanation. Thank you again for this great video.
Excellent introduction to lift and flaps Bruce. Well done. yes, I know that there are assumptions and a few people are pointing those bits out. BUT you are doing a basic introduction. And that is the point. Clear, concise and fun. Congratulations and all the best, Lincolnshire Rose.
Bruce, thanks! I have been trying to figure out why my hurricane would pitch nose down when I deployed the flaps! Now I know what I need to do to get the plane to fly when using them. Great vid as always!!!
Great video, I am just getting back into model airplanes and my Dynam Hawksky 4 CH motor glider needs flaperons, it glides so well, I need an acre and a half just to land ! Your whiteboard and ability to hold 4 colored markers while talking and drawing is remarkable. I know I needed flaps, I can now explain why to someone else, that is the lesson learned today.
Brilliant informative video on lift theory and flaps, particularly pitch difference between low wing and high wing configurations, should be compulsory viewing for all new rc pilots.
Wait a minute. I thought extra lift with a flap generates extra lift behind a CG and that causes pitching down moment. I am an inactive full scale pilot and I believe I had to trim up as flaps go down whether it was a low wing Piper or high wing Cessna. Quickly tried MSFS. C172 definitely gives huge pitch up. Mooney showed minimal change, and Learjet gives huge pitch down. I always use flaps as it costs nothing extra, and 3D planes pitch up because those big control surfaces adds extra lift in front of CG is how I've been understanding it.
hi , bruce just my idea , i had always understood deploying flaps increases the area of wing , and as lift equation suggests increasing the area of wing increases the lift of an a/c.
I appreciate that you at least mention that the Bernulli effect as a explanation of why air-planes fly is at least disputed. The Newtonian explanation makes so much more sense and I'm convinced it is responsible for the majority of the lift created.
Great explanation Bruce, particularly since you spoke about the Newtonian part of it. The explanations I used to read as a kid really confused me as they made out that lift is only created by a wing with an airfoil shape, but I had model aircraft with no airfoil's or symmetrical airfoil's (control liners). When I studied engineering I learned that the Bernoulli effect is basically a statement of the law of conservation of energy.
Aaron, The change in airflow over the horizontal stabilizer (HS) with flaps deployment is the largest determinant of how the airplane will react. An airplane with a HS that is lower than the wing will generally have a nose up tendency, where an airplane with a HS that is higher than the wing will generally have a nose down pitching tendency.
great job, bruce. obviously, there is more to it, but that was the best overall explanation i've heard in a long time. would love more on coanda, though. thanks for all you do!
the drag that occurs after deploing the flaps is real! i mean i once was flying in a passinger jet and when it was time to land i was sitting next to the wing and when the pilot engaged the flaps the plane felt like it was pitching downword, its amazing to see class phisyics in the real worl.
Hi Bruce, Wasn't sure I'd learn anything, but I like your vids and decided to watch the new 'teaching' segment. I never thought about position of the wing and center of gravity and resulting pitch when flaps are deployed. So I did learn something. Thank you.
Mate...loved your presentation and it was so very helpful. Have always wondered the importance of flaps and you have explained it simply and easy to understand. Hat off to you and will be watching many more of your vids.. GREAT WORK...
I'm a Private Pilot. When I fly a Cessna 172 (high wing) and deploy flaps, i have to trim nose up because with adding flaps, the nose wants to drop and I have to maintain pull on elevator yoke to keep plane on glide slope therefore, i need to trim nose up to balance forces on yoke.
Well done Bruce. I enjoyed this presentation. I am looking forward to technical Tuesday or theory Thursday I think the new studio will be a great asset to what you're doing. I have been following your videos for quite some time. I find them both educational and entertaining. Donation to help with the studio (and my future education) on its way. Keep up the good work Bruce
Absolutelly impressive, Mr. RC! I am also an aviation teacher here in Brazil and you Sir will be my inspiration! Great class!
As a licensed flight instructor (and rc modler) I must say, great video. You clearly have a good understanding of flight characteristics and can demonstrate/explain it very well. More of these kinds of videos would kick ass. Ok bye.
Excellent explanation! I was also a Grade 1 instructor and now I'm a B767 captain. A point of interest, the advanced flaps such as Fowlers, and leading edge slats, also increase the surface area of the wing and so increase the lift
Am excited to hear that you are a captain
Totally spot on ... For advanced learners l'd like to add ... Flaps change wing camber & above all wing chord. Meaning increasing angle of attack (AOA) by some 5 degrees despite plane staying in same orientation. Plus control surfaces lose authority at slow speeds &n controls feel mushy
since the presentation begin with a FLAWED visual aid, 'spot on' is not what i would Call it.
Easily best teacher I've ever seen.. been in school for a long time.
lastly im glad you are making these videos. I am also glad they are simple as most people wont care about the higher complexity stuff. Just try and do a little refresher research to make sure the simplification is not misleading
You did a fantastic job. Explained two reasons for lift, and drag component of flaps. Score of 100 out 100. Need teachers like you.
I hope my teacher in aviation when I grow up will be like you, you're really good and I got the lesson fast!
I don't hobbie in RC aircraft but this is obviously applicable to full sized aircraft. Very clear and concise video with a great host. Thanks very much!
I know this is not a new video, but I found it very helpful to confirm what I had already suspected. Thank you Bruce!
How did I miss the Newtonian component all these years? It was right in front of me but I never had someone explain it so well.
Its ok, you're not the only one.
SYMMETRIC AIRFOILS & FLAT PLATE AIRFOILS work on ONLY NEWTONIAN LIFT PRINCIPLE ..NO FANCY BERNOULLI LIFT
Having only taken up flying on retirement at age 75 I have a lot to learn .your videos put things simply so that my senile brain can understand .
If you think about it, a propeller is nothing more than a rotating wing. It produces lift to create thrust. Bernoulli says that the low pressure area ahead of the prop sucks the plane forward to produce thrust. Newton says the the air is accelerated backward to produce thrust in the same way a jet engine does. Which is true? Both.
The Newtonian component as described around 5:18 violates the law of causality. The theory is that because the air molecule goes down AFTER passing by the wing, it ... goes back in time and pushes up on the wing? That has cause and effect backwards. An air molecule going down AFTER the plane has already gone by can't push on the wing.
The lift applied to the wing has to cause the air molecule to be directed downward later. Simply because a cause always happens BEFORE the effect.
So the two components are the Bernoulli portion and the AoA portion. Anything that happens later, AFTER the air has passed the wing, has to be an effect, not a cause.
Folks fall into the "air goes down afterwards" mistake when they realize that the Bernoulli component can't be the only component - some planes can fly inverted. There's no need to fall into that though - you can recognize that inverted flight requires AoA. It requires that the air be forced down WHILE in contact with the wing, because the wing is angled, because the wing is positioned as a wedge while in inverted flight.
A BIG BIG BIG THUMB UP !!! - I really enjoy your videos, as a X-Plane Sim Pilot, and real life Skydiver with over 200Jumps, this is total perfectly brought to the point. Will be watching your videos in future! Keep things going on, like this!
Cheers from Germany.
I'm a beginner and this video helped me a lot. It's perfect for people like me.
Fantastic Explanation! I am a multiengine and instrument rated private pilot and I have never heard such an in depth explanation about flaps before even though I have gone through years of study. Great job! Keep the videos coming. Jake from the USA.
Simply excellent Bruce! I enjoyed this very much. I just don't see how anyone could give this a thumbs down. Free and accurate information presented well. Probably five of the "Old Sore Heads" just pouting.
Grade 6 student here. I was extremely confused by this topic, thank goodness I came across your channel!
Bruce you gave a great presentation today on flaps. I had read an article last weekend about flaps and your pictorial explanation helped my understanding even more. Great job!
I knew very little about how flaps and how other items on an airplane worked but this presentation was very very good and understandable to me.
I've been confused by how flaps work on planes,finally got an answer after 2 years of looking
Well said, your center of gravity comparison was very enlightening, thank you.
yes!
Then why didn't he said about planes with a wings AT the center of mass?
Do they exist?
more please Bruce as a newbie found it interesting and informative and for a man of more advanced years and into this hobby for the first time
We are not asking for a physics dissertation here but an understanding that works. Your explanation gets the point across very well. Let the egg heads prepare a complex video with angle of attack and other variables that will put viewers to sleep. This certainly helped me to understand the concepts he was trying to convey and I thank him for it.
Semih Tok
simple yet concise. much better understanding now thanks
Super helpful, as an aspiring aviation simulator and someone going for my PPL license I greatly appreciated this.
now i am learning more then i thought, which was nothing. great videos. love them
I'm trying to build a plane in ksp, and this really helped. I had no clue what flaps were for, or even what direction to angle them before watching this video.
Another great video! Making a complex topic easy to understand.
Your real good teacher thanks.
Dave Flysitall he needs better teachers
@@grizzmcsammiches6136 is
*You’re a
and you’re welcome 😉
best
Just started working at an aerospace company. First day was deburring clutch plates for these flaps. So awesome.
Thanks for making it easy to understand for a noob to rc planes!
Great video. I learned that I had the wrong idea about flap deployment, but now I got the idea. Thanks!
Thank you a lot, please keep making videos of HOW IT WORKS. Cant wait till you will start explaining the electronics, please do not miss anything.
Great video. You make it all seem very easy to understand. Thank you
Disregard my last comment. It wasn't your video but my computer. I tried again and it worked really good and was able to watch your video. Thanks for taking your time to share your knowledge with your subscribers.
Sir, perfect explanation. I am starting my training in half a year from now and I am glad i found Your content. Hope you are doing well!
Fantastic video!!!! Well done! Greetings from a student pilot from Germany!
You teach like you invented aeroplane. I will like to make you my mentor. Great job done.
You sir are a fine instructor! I like both of your channels.
i now understand flaps ,thanks to you , keep up the very good work you do sir , all the very best .
Fantastic new segment. Great explanation.
Thanks for the video. I always learn something new watching them.
Another great video. Clear explanation. I won't need to look anywhere else, I think I've got it. Thanks for taking the time.
you are better than my own aircraft instructor explanation ...thank you teacher
Thank you. I learned new things today. I've always know how wing works with Bernoulli principle but for the Newton principles, it's the first time for. Very precise and clear explanation. Thank you again for this great video.
Sir, pls more of such theories videos !!! This was really helpful !! we want more of "THEORY TUESDAYS"
Excellent introduction to lift and flaps Bruce. Well done. yes, I know that there are assumptions and a few people are pointing those bits out. BUT you are doing a basic introduction. And that is the point. Clear, concise and fun. Congratulations and all the best, Lincolnshire Rose.
I thought I had a pretty good understanding of flaps before but this did widen my understanding, thank you! :)
Great video. Nice and simple explanation and I've gains a better understanding than I had.
You're the best my friend! We are learning so much from you!
Thanks Bruce! You are just an amazing asset to this hobby.
Bruce, thanks! I have been trying to figure out why my hurricane would pitch nose down when I deployed the flaps!
Now I know what I need to do to get the plane to fly when using them.
Great vid as always!!!
Great instruction and illustration Bruce.Thanks!
Perfect teaching for me. Is simple to understand! Thanks young man!
Great video, I am just getting back into model airplanes and my Dynam Hawksky 4 CH motor glider needs flaperons, it glides so well, I need an acre and a half just to land ! Your whiteboard and ability to hold 4 colored markers while talking and drawing is remarkable. I know I needed flaps, I can now explain why to someone else, that is the lesson learned today.
Loud & very clear explanation. Thank you for sharing..
You did a great job explaining everything. Thank you soo much for simplifying aerodynamics
amazing...
its been a while but you had been teaching and explaining RC plane to us.
Good job and thank you for the hard effort.
Really clear explanation of flaps - I have a much better understanding now, thank you!!
Thank you!! It is going to help me use my flaps on my Challenger, your explanation is very easy to understand.
Brilliant informative video on lift theory and flaps, particularly pitch difference between low wing and high wing configurations, should be compulsory viewing for all new rc pilots.
Wait a minute. I thought extra lift with a flap generates extra lift behind a CG and that causes pitching down moment. I am an inactive full scale pilot and I believe I had to trim up as flaps go down whether it was a low wing Piper or high wing Cessna. Quickly tried MSFS. C172 definitely gives huge pitch up. Mooney showed minimal change, and Learjet gives huge pitch down. I always use flaps as it costs nothing extra, and 3D planes pitch up because those big control surfaces adds extra lift in front of CG is how I've been understanding it.
I'm voting for "white board Wednesday".
Love your videos by the way.
Very well done Bruce.
Both are awesome. Thank goodness for variety!
hi , bruce just my idea , i had always understood deploying flaps increases the area of wing , and as lift equation suggests increasing the area of wing increases the lift of an a/c.
I appreciate that you at least mention that the Bernulli effect as a explanation of why air-planes fly is at least disputed.
The Newtonian explanation makes so much more sense and I'm convinced it is responsible for the majority of the lift created.
I love this theory and praxis explanations! It´s like going again to school or university :D
Enjoyed the lesson. Can't wait to see what is next. Thanks!
Good explanation of the basics.
Very nice Bruce; Looking foreward to many more of these.
Thanks Bruce, excellent tuition!
Man!
Awesome video on flaps.
I have watched you since I've started RC
Great video very informative.Thanks.
Great explanation Bruce, particularly since you spoke about the Newtonian part of it. The explanations I used to read as a kid really confused me as they made out that lift is only created by a wing with an airfoil shape, but I had model aircraft with no airfoil's or symmetrical airfoil's (control liners). When I studied engineering I learned that the Bernoulli effect is basically a statement of the law of conservation of energy.
Aaron,
The change in airflow over the horizontal stabilizer (HS) with flaps deployment is the largest determinant of how the airplane will react. An airplane with a HS that is lower than the wing will generally have a nose up tendency, where an airplane with a HS that is higher than the wing will generally have a nose down pitching tendency.
Enjoyed this very much! Looking forward to the next one!
great vid Bruce.Looking fwd to some more.
Great video, has been much needed!
great job, bruce. obviously, there is more to it, but that was the best overall explanation i've heard in a long time. would love more on coanda, though. thanks for all you do!
the drag that occurs after deploing the flaps is real! i mean i once was flying in a passinger jet and when it was time to land i was sitting next to the wing and when the pilot engaged the flaps the plane felt like it was pitching downword, its amazing to see class phisyics in the real worl.
Hi Bruce,
Wasn't sure I'd learn anything, but I like your vids and decided to watch the new 'teaching' segment. I never thought about position of the wing and center of gravity and resulting pitch when flaps are deployed. So I did learn something. Thank you.
This video is more than adequate to help people understand flap use.
Excellent explanation! Very clear and informative! Great teacher!
Excellent Bruce
Very good tutorial, keep good work up. I will certainly send the link to a couple of my friends thank you.
Gavin
Thanks Bruce. I'm 56 and new to this that was great.
Excellent. You are a great teacher.
Briliant. I was struggling with the concept of centre of gravity and that added it all up.
Me too bro
Great video and thanks for the explanation.
Fantastic Explanation.
Sir! this is an amazing explanation! Thank you for your work!
Mate...loved your presentation and it was so very helpful. Have always wondered the importance of flaps and you have explained it simply and easy to understand. Hat off to you and will be watching many more of your vids.. GREAT WORK...
I'm a Private Pilot. When I fly a Cessna 172 (high wing) and deploy flaps, i have to trim nose up because with adding flaps, the nose wants to drop and I have to maintain pull on elevator yoke to keep plane on glide slope therefore, i need to trim nose up to balance forces on yoke.
On some craft there is up pitch and others have down pitch. Depends on several things.
Well done Bruce. I enjoyed this presentation.
I am looking forward to technical Tuesday or theory Thursday
I think the new studio will be a great asset to what you're doing.
I have been following your videos for quite some time. I find them both educational and entertaining.
Donation to help with the studio (and my future education) on its way.
Keep up the good work Bruce
Wonderful Teacher!!! Very nicely explained!!! Thanks a lot!!!
great info,thank you.and a big thanks for your comments on our site.
Nice - exactly what I needed to hear.
great video. finally understand them now
what a great lesson, it really cleared up my understanding about the flaps for different plane model
Excellent explanation does the same in my piper cub....Cheers to the white board....
I see forward to the next one, have a good one Bruce