Hello, rcgroups! I'm Serge from Russia and I represent the "ssair" brand. Since my childhood I’ve admired big civil aircrafts but up until autumn 2011 I did not dare to fulfill my dream - to have a big beautifull rc aircraft. So, I've started looking for a suitable aircraft in the market. And what I’ve founnd - there are a lot of uneven foam planes and nice but expensive plastic projects. And here it comes in my mind - wait a minute, I can do it better and cheaper! I chose the Boeing 777, I really love it. Ok, let's begin. First of all, I have to choose the material.
What we have - balsa, foam - cheap and lightweight. Ok, but how does it look like? - uneven bumpy surfaces and in regard to repairs after the crash – a lot of work, as much as to make it from scratch. Not suitable for us.
Ok, let's take a look at fiberglass. Glossy smooth surface, very well looking. But what about the complexity of the process? I have to make molds, learn technics and etc, at the end I'll have lightweight strong cowls but what price should I give for it? – a lot of hard work? And what about repairs? And the density of fiberglass is not as low as it seems - 2.4 and more g/cm3 - like aluminium. Not suitable again.
And this way I came to petg, to be exact to the manufacture of parts by vacuum thermoforming. You may ask - what about stress load of aircraft made of petg? - ok, we will use an frame made of alloy and carbon rods. This construction will take point loads (chassis...Continue Reading