Welcome to the WIMAC forums.

You are currently viewing our site as a guest which gives you limited access to view most discussions and access our other features. By joining our free community you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is fast, simple and absolutely free so please, join our community today!

If you have any problems with the registration process or your account login, please contact us.

Go Back   WIMAC > R/C > Projects and Builds

Projects and Builds Share your project builds, tips and tricks.

Reply
 
Thread Tools Display Modes
  #1  
Old 2021-02-05
Michal Michal is online now
Club Member
First Name: Michal
Last Name: Kuczewski
MAAC Number: 97129
WIMAC WINGS: Unknown
 
Join Date: Apr 2020
Posts: 86
Michal is on a distinguished road
New Wings

My project is relatively small but might be interesting. It is a modification of my Graupner model (bar is closed due to virus), which I flied with Dwight as an instructor. It looks nice but it is too fast for my flying skills. So I decided to slow it down by designing and building new wings. I increase the wing area from 460 sq.in to 660 sq.in, used higher lift Eppler 197 airfoil and added slotted flaps. The challenge was that I had to use the same mounting as in the model with a single screw. It is a cantilever wing without struts and the new wingspan is 1.9m. The load will be taken by two strong spruce/plywood/balsa beams. Per my calculation they should take UP TO 6G down load.
Attached Thumbnails
Wing-1.jpg   Wing-2.jpg   Wing-3.jpg  

Wing-4.jpg   1.JPG  
Reply With Quote
  #2  
Old 2021-02-05
Michal Michal is online now
Club Member
First Name: Michal
Last Name: Kuczewski
MAAC Number: 97129
WIMAC WINGS: Unknown
 
Join Date: Apr 2020
Posts: 86
Michal is on a distinguished road
I ordered some plywood parts to be laser cut by UMAKE.CA. I noticed that parts are OK for up to 1/16 thickness, for 1/8 they have burns around sharp corners. I gave the shop CAD models but noticed later that the parts were off around about 0.005”. Not much but next time I should tell them to enter proper offset or add this 0.005” to my CAD model.
Attached Thumbnails
2.JPG   3.JPG   4.JPG  

5.JPG   6.JPG  
Reply With Quote
  #3  
Old 2021-02-05
Michal Michal is online now
Club Member
First Name: Michal
Last Name: Kuczewski
MAAC Number: 97129
WIMAC WINGS: Unknown
 
Join Date: Apr 2020
Posts: 86
Michal is on a distinguished road
Construction is progressing
Attached Thumbnails
7.JPG   8.JPG  
Reply With Quote
  #4  
Old 2021-02-05
alanh alanh is offline
Club Member
First Name: alan
Last Name: Holtzman
MAAC Number: 33756
WIMAC WINGS: Solo Planes
 
Join Date: Aug 2017
Posts: 88
alanh is on a distinguished road
Bar

An interesting place to build a model airplane lol
Reply With Quote
  #5  
Old 2021-02-06
Mezri's Avatar
Mezri Mezri is offline
Club Member
First Name: Mezri
Last Name: Filali
MAAC Number: 91499
WIMAC WINGS: Instructor Plane
 
Join Date: Jan 2016
Posts: 546
Mezri is on a distinguished road
Very nice job...
Reply With Quote
  #6  
Old 2021-02-06
Dougf's Avatar
Dougf Dougf is offline
Club Member
First Name: Doug
Last Name: Finn
MAAC Number: 95442
WIMAC WINGS: Solo Planes
 
Join Date: Jul 2018
Posts: 153
Dougf is on a distinguished road
Michal,
This looks like commercial aircraft level quality, very impressive. I would never notice 5 thou tolerance on any of my builds, I'd be lucky to be within 1/16" ) Good luck with your bar project.
Reply With Quote
  #7  
Old 2021-02-06
Dwight Macdonald's Avatar
Dwight Macdonald Dwight Macdonald is offline
Vice President
First Name: Dwight
Last Name: Macdonald
MAAC Number: 16385
WIMAC WINGS: Instructor Plane
 
Join Date: Jan 2007
Posts: 2,162
Dwight Macdonald is on a distinguished road
Send a message via AIM to Dwight Macdonald Send a message via MSN to Dwight Macdonald Send a message via Yahoo to Dwight Macdonald
Very nice work Michael, it looks like structure expected in a full scale wing!
Reply With Quote
  #8  
Old 2021-02-07
Michal Michal is online now
Club Member
First Name: Michal
Last Name: Kuczewski
MAAC Number: 97129
WIMAC WINGS: Unknown
 
Join Date: Apr 2020
Posts: 86
Michal is on a distinguished road
Thank you Dwight, I hope You will help me with a test flight. I am also watching your project, it is impressive.
Reply With Quote
  #9  
Old 2021-02-07
Michal Michal is online now
Club Member
First Name: Michal
Last Name: Kuczewski
MAAC Number: 97129
WIMAC WINGS: Unknown
 
Join Date: Apr 2020
Posts: 86
Michal is on a distinguished road
This looks like commercial aircraft level quality, very impressive. I would never notice 5 thou tolerance on any of my builds, I'd be lucky to be within 1/16" ) Good luck with your bar project.[/QUOTE]

0.005" is not much but when you have a lot of parts its add quickly.
Reply With Quote
  #10  
Old 2021-02-08
pierre sarault's Avatar
pierre sarault pierre sarault is offline
Club Member
First Name: Pierre
Last Name: Sarault
MAAC Number: 60547
WIMAC WINGS: Solo Planes
 
Join Date: Apr 2007
Posts: 200
pierre sarault is on a distinguished road
Send a message via Skype™ to pierre sarault
Nice Design + Question about your CAD

Very clean Design, should fly beautifully.
For your CAD are you using Autodesk Fusion 360 or Dassault Solidworks?
Reply With Quote
Reply

Bookmarks


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

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

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Banggood replacement wings bailey General Discussion 2 2017-06-02 04:26 PM


All times are GMT -4. The time now is 01:50 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2021, Jelsoft Enterprises Ltd.