I have absolutely no idea what I am doing! Start with that. I have hot wire cut a few different products thinking to use it as the core for my wing. Dow Corning pink cuts beautifully smooth. I understand it is made from PE resin. EPS solutions at the intersection of highway 2 and 53 also use PE but in bead form. I cut the exact same profile with that. The cut is precise as well, the difference is the surface being rough.

Would there be an advantage one over the other when the time comes to cover the wing? Better adhesion? Things I have not thought about? ... many I'm sure...

I flew line control .049 as a child and now I am calling myself retired and would like to make something to play with. Hands off!

Thank you from David

As I stated in last month’s article (but it needs to be emphasised again) - Your airplane, and how it performs in the air, relies completely on the aerodynamic flows and forces placed upon it. The way it performs and flies is based on the inputs to the control surfaces and the airflow over them, which in turn enables the airplane to maneuver precisely, smoothly, and safely in the air. How aerodynamically tight those controls surfaces are, how firm they are when forces of flight are applied to them, how smooth they operate, and how safe they are hooked up – all determine the aircraft’s performance, it’s safety, and the longevity of the model.

How many times have you seen a model that shows up to the field with loose or sloppy connections between the servos and control surfaces? Or how about the large gaps in hinge lines of the…

Back in the 80’s when I was considerably more active with flying and competing; I published an article in Model Airplane News (MAN Mag) about pushrods in model aircraft. Below is the jest of that article from memory, and expanded upon for new and experienced flyers.

For those people who are new to the hobby, even the simplest things can cause a great deal of confusion. I have always noticed that a lot of newcomers are baffled by the assortment of pushrods, connectors, and hinging advice/illustrations during their new building experiences. Even RTF and ARF models generally do a poor job of designing or illustrating good pushrod, control surface hookups, and hinging. There are RTF kits out there that actually have 1/8-3/16 in. spaces on the hinge lines – This does not mean that it is OK or even correct just because the manufacturer builds it that way.

A new…