Whow - thank you all very much for your help!

I tried my luck with Fredo6's plugins and so far I'm quite happy. I can now create the flight paths fast and in an intuitive way. There's only one thing that I don't quite understand.

I wanted to create the flightpath for a Roll maneuver, so I used the FredoScale's Twist-function. Looks very neat so far:

However, when I set the camera's angle near the long axis of the flight path, I get some unwanted lines:

As far as I understand, these lines correspond to the automatically generated geometry, i.e. they are the segments of the rolling path. It turns out that I can't interact with these lines (select them or change them in any way), they seem to be some graphic error which unfortunately show up in the exported 2D images, too.

Any thoughts on how I could solve this issue? SKP file is attached. Many thanks in advance!

SKP file with flight path

Hello everyone,

I'm quite new to 3D modeling, so there's probably a pretty easy solution to my problem. Yet it seems I can't figure out the right questions to get the answers.

So here's what I'm trying to do.

GOAL
I want to create a number of images of air combat maneuvers. They should look like this one:

APPROACH
Take the defender's flight path: A simple turn with about 60° of bank.
I would like to create this flight path by drawing two arcs from each wingtip at time 1 to each wingtip at time 2 and close the geometry with two straight lines (which are hidden after the job is done).

PROBLEM
Since these two lines and arcs are not in the same plane, I have to manually add several lines and manually hide them afterwards. This additional work costs a great deal of time.

SOLUTIONS?
I hope that there is some sort of method or plugin that can automatically create the faces needed to complete the flight path. I'd be very grateful for any suggestions.

In order to speed things up, I attached a file where i drew and filled a flight path manually. If there's any further explanation needed, please ask for it and I'll do my best to give you the information needed.

Thanks in advance!

P.S.
I'm using SketchUp Make 2014

NeedHelp.skp