On Saturday, Tim and Nathan spent about 2 hours building a rocket to launch. They worked very diligently and well together. Tim lets Nathan do a lot and Nathan understands what he can't do. I think Tim is having as much fun as Nathan - maybe more. I am glad they have this that they can do together and enjoy one another's company. We did launch the rocket; however, it was never recovered. They look for a while to try and find out to relaunch it, but no luck. Tim thinks it burned up in the air. The next project is one that goes 2,000 feet up. That should be interesting.