+- WAM Forum (https://www.wamqld.com/forum)
+-- Forum: WAM General Discussions (https://www.wamqld.com/forum/forumdisplay.php?fid=1)
+--- Forum: Building & Constructing Model Aircraft (https://www.wamqld.com/forum/forumdisplay.php?fid=6)
+--- Thread: Basic Aeronautics (/showthread.php?tid=28)
Basic Aeronautics - Brian Clarey - 27-02-2020
Brian starts here a new thread about Basic Aeronautics. Watch for posts, and please reply to any questions you may have, to what eventuates!
RE: Basic Aeronautics - AceTutor - 27-02-2020
Thanks Brian
For starters can you explain forces on any aircraft? I feel that is the absolute starting point in understanding flight.
Cheers JR
RE: Basic Aeronautics - Brian Clarey - 27-02-2020
Here is the basics given in this image found on the web!
![[Image: Aircraft-balance-of-forces-in-cruise.png]](https://www.researchgate.net/profile/Francois_Gallard/publication/317401929/figure/fig1/AS:669091245350914@1536535192225/Aircraft-balance-of-forces-in-cruise.png)
This picture tells it all! Sort of!
(PS. This is a thread that Brian wishes us all to participate in . . . but this is also an opportunity for me (AceTutor) to work with Brian and learn together how to use the FORUM features . . . like entering an image, etc)
RE: Basic Aeronautics - AceTutor - 27-02-2020
So what do you mean by "sort of? Can you tell me more?
RE: Basic Aeronautics - Brian Clarey - 28-02-2020
Hi, John .
In other words, each heading requires a separate discussion. Take the term LIFT for example. LIFT is created when sufficient air speed. is passing over the wing surface A PRESSURE DIFFERENCE is created. Due to the greater distance over the top of the wing when,compared to the underside of the wing. The greater distance on the upper surface is responsible for creating a negative pressure, producing LIFT. This is one of many factors to achieve the desired result!
Regards Brian.
RE: Basic Aeronautics - KENNYGLIDE - 06-03-2020
What if it's a flat wing Brian? ?
RE: Basic Aeronautics - Celwin - 06-03-2020
A flat wing won't produce lift unless there's a positive angle of attack.
RE: Basic Aeronautics - KENNYGLIDE - 08-03-2020
No difference in air pressure but still produces lift?...or negative air pressure produced simply because of the wing angle.?
RE: Basic Aeronautics - Brian Clarey - 08-03-2020
Thanks Ken,
A flat wing is nowhere as efficient as a properly designed and developed air foil. A flat wing flies because of the angle attack to the air stream and forward motion. All air craft need forward motion to fly, either by ballast, in the case of a glider or by a motor/prop combination.
Brian
RE: Basic Aeronautics - Celwin - 09-03-2020
At uni the lecturer demo'd the stall characteristics of a flat wing compared to an airfoil. The flat wing stalled at a very shallow angle of attack compared to a proper airfoil. There was even a difference between symmetrical and flat-bottomed.