RC-SIM

Workshop from Dietmar ( Lego )

Hello,

there are some  really nice scale-helicopters for AFPD, but very little “normal” RC-helicopters. If you can find a typical RC-Heli it is most of times very simple built. What a pity, because building a heli is easier than building a fixed wing aircraft.

Especially the typical “chassis with canopy” models can create a lot of effort because there is a very small amount of parts that are really round. The only part on a heli that takes a little more effort is the canopy, but even this is not very challenging.

I decided to make a small workshop how to build a helicopter, like before for the “Corsair”.

At first we need proper pictures. The easiest way is to search the Internet or the common RC-Forums.

I have chosen the brand new “Crown” from Robbe.

I think it is the easiest way to build the model from inside to outside. Therefore I start with the chassis.

With a primitive poly-line I follow the outlines on the side-view and fill it with Polygons.

If you have build this exactly in the middle you can easily increase the width with “Extrud”, mirror and freeze it; Ready is the side-frame.

If you enable the automatic mirroring and move the side-frame to the left (I prefer building the left side), you will get automatically the second side-frame. Freeze again. Then add a few binders out of an octagon cylinder and some screw head imitations; Ready is the chassis.

Then fill it smartly with a few polygons to get a laminar figure.

With the “Extrud” command extend the figure to the front, the side-frames will be created automatically.

To make sure that you will not get the inner faces when mirroring you must delete the side-faces at the mirror axis.

After two times mirroring and joining the points with “Joint closed Vertices” this part is finished.

At the end mirror the part again to the depth to get a back-side face and the part is a closed volume.

If needed join also here the points with “Joined closed Vertices”.

After you have moved the part to the correct position and have adjusted the outer shape…..

….. you can make the tail boom a little thicker. It looks quite fine already.

The most convenient way is to cut the tail-boom 4 times at the end (“Knife”) and then select only the middle polygon ring (“Select”-“Belt”) and scale it accordingly.

If you like to save polygons you should delete the cuts at the inner side of the tube with “Knife – Erase chained lines”.