Monthly Archives: Oktober 2013

Aileron support spar

Aileron support spar

I recently added the aileron spar without having any trouble. Although the drawings are almost 100 years old and do not contain any tolerances the parts simply slip into place.…
Rigging the wing

Rigging the wing

As I said before, the one rib is used multiple times. This gives me the opportunity to get a pretty impressive wing using three parts: Rear Spar Front Spar Ribs…
First rib in place

First rib in place

Having defined a reference line using the rpevious mentioned fittings I was able to position the first rib. This root rib is completely closed with spruce on the outside. I…
Positioning the ribs…

Positioning the ribs…

...proofed to be a bit complex. All the measures of the plans reference to the main wing fitting and this references the planes' centerline. So I was forced to design…
A nice home for the ribs

A nice home for the ribs

Having finished the main rib, I needed a nice place to put it. The Sg-38 has two main spars and I decided to start with the rear one. Why? Well,…
Creating some ribs

Creating some ribs

The first part to be designed is the rib. I'm saying "the rib" because there is just one. This one design is used in different configurations throughout the whole wing.…
This is where it starts.

This is where it starts.

So here I am, with a bunch of plans. What am I gonna do? Well, we will start with the most complicated part. The wings. Checking dimension I decided on…