Flight Simulator Lesson 3: Aerodynamics

[@aliken91]

It seems you incredibly mastered the subject to the extent of settting it out with a totally easy-to-understand video. Impossible to stay away from your videos.

[@bregul]

I'm a combat flight simmer. Play DCS and il. I learned alot from your videos that these games don't cover very well. watched all your videos but video 4 in one sitting. Thank you for making them.

[@dichromatic6003]

Again i thought i was sitting in an ATP flight school.. Awesome I really learned alot. Keep the videos coming Pleeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeaaaaaaaaaaaaaaaasssssssssssssssseeeeeeeeeee.

[@jimbob7218]

Thanks Matthew for taking the time to produce these videos. Great work!

[@JDvorak2009]

I'm totally interested in the "why" of how air plains get off the ground and fly. I thank you very much for you astute explanation of all the mechanics of it! Thanks for the lessons.

[@ceebeebeats1077]

I just started my ground glass some weeks ago and by watching your videos it really helped me alot and I feel I'm in a much better position. thank you so much.!!!

[@flighttrajectory]

Awesome, I'm glad my videos were helpful!

[@ceebeebeats1077]

+flighttrajectory helpful always

[@geraldrembert8321]

Just started your classes 4 days ago. I'm going to stick stick with it until I get my Pilots license.

[@Florida-Ken]

FT, I'm glad I found you on youtube yesterday when looking for instrument gauge information. You are a very good teacher and your videos are excellent, I'm looking forward to viewing more of your work in the near future! And maybe I'll purchase some of your products one day soon when they're available. Take care and good luck with the dream.

[@flighttrajectory]

Thanks Sunny Jax! I just uploaded Lesson 4 today; check it out and let me know what you think! :)

[@Florida-Ken]

I think watched them all, funny I did notice a wide date range. I actually was trying to practice stalls on the sim recently and liked what you were doing in today's post. You have a good starting group of videos, maybe add slow flight and recovery for a future video. I think you have a virtual flight school in the making, thanks again. p.s., there's got to be a better way to do rudder control on a joystick without twist action. i.e. turning during slow flight. Other joystick challenges, push to talk, auto pilot disengage are all extra clicks during critical flight moments on VATSIM. :)

[@flighttrajectory]

Sunny Jax Yeah, I started making the videos a couple years ago; and then had a lot of things happening in my life at once and I didn't get back to it until earlier this year. Hopefully I'll be cranking out a video every month of two. :) Thanks for suggestions for future videos, and flight sim products!

[@sniperz123]

Great tutorial man! Appreciate it.

[@NickyHoang]

Excellent videos. You explain things well thank you

[@asmaamoustafa2188]

Amazing ideal explanation. Really it’s the best ,

[@flighttrajectory]

Glad it was helpful!

[@zaauriwilkerson2383]

Thanks, you explained this very well. :)

[@Pfsif]

What is that knocking noise?

[@near2vulcan]

Exactly. That noise makes it difficult to listen and comprehend the lesson.

[@sujangowda6230]

Thank u sir

[@nocoat294]

what do you mean by "push the nose forward"? Downward or upward?

[@flighttrajectory]

+no coat Push forward on the joystick, to lower the nose in relation to the horizon :)

[@masonsamuels347]

Does apply to real life piloting ?

[@MuhamedTahmas97]

Of course these are physical phenomenas

[@Observ45er]

P.S. The 'Blown Paper" demo is misinterpreted. A curved path of air is an accelerated stream of air. Acceleration requires a force to cause it (F=MA). Acceleration is a CHANGE in speed OR DIRECTION. The force is a pressure difference. ... When the paper is curved, the air tries to follow it and does curve somewhat due to the pressure difference, but this is BECAUSE OF THE CURVE not the speed. That may be confusing, but a straight stream does not do this. See the Babinsky Video. ... Relative motion between a stream of air and a CONVEX surface is what causes the pressure change. See Weltner for a more in depth explanation of just why this happens.. -- Cheers

[@jaredstokes9895]

Take a single sheet of paper, and fold it in half, pinch it by the fold leaving a space between the two halves, now, with your mouth up close blow in between the two halves. You will notice the halves close in on each other.

[@stephs.1001]

Nice.

[@hassanshan91]

Ok so this lesson is quite confusing. I didn't understand most of it. Maybe too much logic in it? 🤔. Could you please make one more video to explain in simple words for the beginners and who just started understanding c172 aerodynamics.

[@craigjohnstonmusic7957]

I really like these videos but are you tapping a pen or something every couple of seconds when you talk?

[@Observ45er]

As promised: First, what Bernoulli revealed is the inverse relation between velocity and pressure BUT ONLY between different points ALONG a SINGLE stream where no energy is added nor removed. In the classical case usually referred to, the air speeds up BECAUSE there is a higher pressure region pushing it toward a lower pressure region - that's why it has a higher speed when it gets there. An ordinary jet of fast air has the very same pressure as the air around it. Nothing else makes sense. In addition, the wing is doing considerable work adding energy to the air, most easily seen in the downwash. The "Fast-Air-Has-Lower-Pressure" thing is not some fundamental principle of physics that must be learned like Newton's Laws of Motion. It is just some bad story that has been repeated so many times by so many for so long that it is all over, making it just about impossible to find the real science. Everybody loves "The Bernoulli Principle" which doesn't exist.... I recommend reading David Bentley's paper first, then Holger Babinsly's video second. ... SUMMARY simplified, but not incorrect...... As the wing moves through the air, part moves toward some air which increases its pressure and another part moves away from some air's natural path which decreases its pressure. This pressure difference is the lift. In addition, this pressure difference pushes a volume of air downward, thus satisfying Newton's "equal and opposite" Third Law. ... Dave Bentley Wings Don't Suck 2015 Once you really understand it you will not be baffled by the fact that the fastest air around a wing is just UNDER it! This can easily be seen in the sequence of images from the Cambridge University videos on the 6th page of Dave Bentley's paper. The vertical line is stationary and the wing is moving past it. Look at which air streams move the furthest (fastest) and which move the least (the slowest). If you don't understand this, It'll blow your mind. 219sqn.aafc.org.au/Flight/Wings%20don't%20suck-How%20planes%20really%20fly.pdf Bernoulli's Equation says absolutely nothing about air speed relative to a near-by surface; only about different points along a single path of travel. ... Video lecture explaining Bernoulli. If you understand Newton, you'll clearly understand Bernoulli and lift much better after this video, or his paper also linked here. Dr Holger Babinsky, Cambridge University Engineering Department. Common misconceptions on lift. kzbin.info/www/bejne/jojHf3h9p5pmfdk You'll need his MISSING SLIDES from HERE (Click the Download Icon for the complete set of slides): docs.google.com/file/d/0B0JABuFvb_G_MkpBZHJmRGo3UkU/edit?usp=sharing Also: docs.google.com/file/d/0B0JABuFvb_G_MkpBZHJmRGo3UkU/edit ... This is the equivalent 2003 article he mentions in the video: www3.eng.cam.ac.uk/outreach/Project-resources/Senior-glider/howwingswork.pdf The video is extracted from Cambridge University undergraduate prospectus 2006/2007 (so the video was done at about that time, or earlier. PLEASE NOTE than when Prof Babinsky says "Coanda" he mispoke. The term "Coanda Effect" is reserved only for high speed jets or sheets of air FORCED over a curved surface, NOT for air "normally" flowing around a wing. While the two look very similar, lots of people debate whether ordinary lift is, or is not Coanda... The non equal transit time (only) proof video by Holger Babinsky, Cambridge University kzbin.info/www/bejne/i6KlnpeQYqeBn8k Narrated, no title at start Cambridg U Also: kzbin.info/www/bejne/bIbPpHSoq8eHm9E Un-narrated, pulsed Titles about stall are off. ... ... Weltner as an extended version web page: www.angelfire.com/dc/nova/flight/PHYSIC4.html ... Peter Eastwell; an educator who did his homework: www.scienceeducationreview.com/open_access/eastwell-bernoulli.pdf Weltner in an abbreviated PDF - "Misinterpretations of Bernoulli's Law": user.uni-frankfurt.de/~weltner/Misinterpretations%20of%20Bernoullis%20Law%202011%20internet.pdf ... Jeff Raskin's 6th grade calculations using a common bad example of "Bernoulli Lift" and the incorrect "Equal Transit Theory": karmak.org/archive/2003/02/coanda_effect.html#appendix ... This next video has a pretty good overview. Note that he says that "You can use BOTH Bernoulli AND Newton to explain what's going around the wing." My emphasis. He does not say EITHER...OR. However, it does not go into detail how the pressure difference at the wing is actually created, nor how the "curve" in the air's path is created. You must go to some/any of the other references for that. ... This is the best true lift Simplified video I found on You Tube by Bloodhound: kzbin.info/www/bejne/hZvVpqqcnrqnfbs Bloodhound does seem to emphasize the downwash 'action-reaction' part, but note that it does not ignore the pressure differences. MinutePhysics' video is a good simplification of lift that is not wrong, though he glosses over the downwash. He was coached by Airbus engineers: kzbin.info/www/bejne/fZiThYuEjcytY9k ... Cheers, ScienceAdvisorSteve

[@jaredstokes9895]

You are so full of crap Steve. So, there is no Bernoulli principle, ehh? You seem to like Coanda though, how do you have entertainment into a jet stream if the jet stream isn't lower pressure?