Go Back  RCU Forums > RC Airplanes > Aerodynamics
Reload this Page >

Help. Whath airfoil is this!

Community
Search
Notices
Aerodynamics Discuss the physics of flight revolving around the aerodynamics and design of aircraft.

Help. Whath airfoil is this!

Thread Tools
 
Search this Thread
 
Old 09-25-2024, 05:13 PM
  #1  
paof
Thread Starter
 
paof's Avatar
 
Join Date: Mar 2004
Location: maracaibo, VENEZUELA
Posts: 264
Received 1 Like on 1 Post
Default Help. Whath airfoil is this!


Hello, does anyone know which airfoil this is? To see if I can generate it with profili or any other program. Thanks in advance
Old 09-26-2024, 05:09 AM
  #2  
speedracerntrixie
My Feedback: (29)
 
speedracerntrixie's Avatar
 
Join Date: Jun 2010
Location: Happy Valley, Oregon
Posts: 9,577
Received 178 Likes on 153 Posts
Default

Looks like a typical Clark Y with a bit of Phillips entry. Probably something the designer just drew out.
Old 09-26-2024, 09:41 AM
  #3  
UStik
 
Join Date: Oct 2006
Location: Augsburg, GERMANY
Posts: 1,019
Received 8 Likes on 8 Posts
Default

Look here for the real Clark Y. Your drawing looks like a Clark Y thickened in a way that the flat bottom part is unchanged, basically by raising the center line by a fixed percentage and thickness (and LE radius) by the same percentage. It might be possible to do that in Profili. Unfortunately, you clipped the picture so that the airfoil's length is not visible and thickness in % can't be measured (my guess is 17%).

Last edited by UStik; 09-26-2024 at 09:50 AM.
Old 09-26-2024, 11:11 AM
  #4  
paof
Thread Starter
 
paof's Avatar
 
Join Date: Mar 2004
Location: maracaibo, VENEZUELA
Posts: 264
Received 1 Like on 1 Post
Default

Originally Posted by UStik
Look here for the real Clark Y. Your drawing looks like a Clark Y thickened in a way that the flat bottom part is unchanged, basically by raising the center line by a fixed percentage and thickness (and LE radius) by the same percentage. It might be possible to do that in Profili. Unfortunately, you clipped the picture so that the airfoil's length is not visible and thickness in % can't be measured (my guess is 17%).

Thank you very much for your answers I attached a full profile image
Old 09-27-2024, 08:36 AM
  #5  
mgnostic
 
mgnostic's Avatar
 
Join Date: Jan 2003
Location: Kamay, TX
Posts: 1,665
Received 104 Likes on 89 Posts
Default

It may not be any specific named airfoil.. People have been calling any flat bottomed airfoil a "Clark Y" for over 75 years. You could argue that it is in fact, semi-symmetrical with a straight lower section. A lot of model wings are designed using a rib with a flat section because it makes building the wing easier. There are a lot of models out there with TLAR airfoils.
Old 09-27-2024, 09:00 AM
  #6  
paof
Thread Starter
 
paof's Avatar
 
Join Date: Mar 2004
Location: maracaibo, VENEZUELA
Posts: 264
Received 1 Like on 1 Post
Default

Originally Posted by mgnostic
It may not be any specific named airfoil.. People have been calling any flat bottomed airfoil a "Clark Y" for over 75 years. You could argue that it is in fact, semi-symmetrical with a straight lower section. A lot of model wings are designed using a rib with a flat section because it makes building the wing easier. There are a lot of models out there with TLAR airfoils.
​​

Thanks very much.

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



Contact Us - Manage Preferences Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.