I know a long time ago that Pivot stick figure animation software was really popular with my middle school math/sci teachers. It hadn't been mentioned for a long time until today. My firewall blocks the download page (all's fine at DOT net, but on the downloads page, the link redirects to DOT com/weird alphanumba string/version number/pivot_v4-2 DOT exe).
Pivot Animator is designed to be a user friendly way of creating 2D stick-man animations. The basic concept is that stick figures can be easily moved and positioned by dragging handles. An animation is made up of frames added to the time-line, which are shown at the top of the screen. This can require more time to create a smooth animation than it does in flash for example, because Pivot doesn't support frame tweening. This however makes Pivot very easy to use and gives the animator full control over figure movement.
Now all I need to know is, can you have multiple pivoting planes? Can you have Plane A set as the pivot, then three planes all attached to it, each one swinging and spinning around as they follow Plane A? Preferably with each plane attached to a different side of Plane A. Such as Plane B attached at the left side of Plane A, and Plane C attached at the right side of Plane A, and so on.
I can see what you did there, how you connected things up, but when I animate it, the three smaller planes, Planes B, C, and D, just fall straight down instead of swinging along the pivot. As in, each plane maintains its flat orientation, and simply falls downs, without swinging or following Plane A.