RCU Forums - View Single Post - 1/4 Scale P-38
Thread: 1/4 Scale P-38
View Single Post
Old 02-02-2016, 01:56 PM
  #18  
ProfLooney
 
Join Date: Jan 2002
Location: Moline, IL
Posts: 3,259
Likes: 0
Received 5 Likes on 4 Posts
Default

Ok guys using some great ingenuity I got the wing lofted. for those that use solidworks and want to know how I did it Here is what I did.

the hardest part on lofting some wings is that once you throw in the washout on your loft it is really hard to get the guide curves at the proper angles etc. now when setting up for the loft you need the outline of the wing to lay it out. now here is the trick. You Need to extrude the wing outlines. this gives the shape to your guides in the correct place. but that doesnt help you much yet. Now you have your root and tip rib in the proper locations for lofting. what you need to do is that the centerline of each rim and use it to do a lofted cut between the two. this will give you a warped surface matching your washout.

Now that you have that loft cut out you use the edges to create a 3D sketch to give you your guides at the proper angles. it sounds complicated but once you see it it is super easy so I will show some screenshots in the order I described above.







Attached Thumbnails Click image for larger version

Name:	p-38-19.png
Views:	226
Size:	64.1 KB
ID:	2144907   Click image for larger version

Name:	p-38-20.png
Views:	242
Size:	135.4 KB
ID:	2144908   Click image for larger version

Name:	p-38-21.png
Views:	226
Size:	165.8 KB
ID:	2144909   Click image for larger version

Name:	p-38-22.png
Views:	238
Size:	112.1 KB
ID:	2144910