FlyingTyger
Elite member
![Sample1.jpg Sample1.jpg](https://ftforumx2.s3.amazonaws.com/2023/02/434877_b0313601d037fc59cc1eb84714434e28.jpg)
The Cox PT-19 control line model has introduced countless people to the world of aeromodelling. It is a classic design that I have always wanted to pay homage to in RC form. Recently I was looking for a new indoor model to build and thought that this would be a great chance to take on the Cox PT-19 RC project.
But it cannot end up just looking like a small PT-19 model; it needs to represent the Cox product. There are some nuances to the Cox model that are not exactly “scale” that I want to make sure I capture correctly. I also want to make sure it retains the “plastic” look. Obviously, a molded plastic airframe would be too heavy, especially for an indoor flyer, but I did not want it to look like a foam model either. 3D printing would be a viable option but is outside of my skill set. My decision was to use foam skinned with covering film.
![Sample2.jpg Sample2.jpg](https://ftforumx2.s3.amazonaws.com/2023/02/434879_c19d481954489f21fe8445d564e0bee1.jpg)
Armed with a plan, I took every picture I could find online and fired up CAD. I was able to find a detailed list of dimensions of the original model and tried to hold tight to those. I was able to draw up a simple design that holds true to the original's proportions.
![Cox-19.png Cox-19.png](https://ftforumx2.s3.amazonaws.com/2023/02/434883_fc3e57de6a2c286896b46f7121ee5636.png)
Time to build.