This link is not about Model Railroading, but it is about Model Building. I hope that you enjoy it.
It is a 7.5 minute video of a model B29 Bomber with an Experimental X-1 rocket plane under its wing. The B29 takes off, releases the rocket plane and then does some aerobatic flybyes. So if you only have Dial-up, be forwarned.
It is worth the time though.
Go to http://users.skynet.be/fa926657/files/B29.wmv
Blue Flamer.