Take Virtual Aerospace Tour

Aerospace engineers and aviation enthusiasts can view some of the world's greatest aircraft and helicopters on-line. The Virtual Aircraft Museum is a fun, fact-filled web site run by Maksim Starostin of Estonia. Although I haven't explored every nook and cranny, I'm quite impressed so far. The aircraft are arranged by country of origin, and the planes are a level down. Each aircraft has three views, photos, specifications, dates, and other important facts. In addition, the company history is available for many of these historic aircraft.
Helicopter engineers and enthusiasts can also take a tour of a virtual museum on the Web. All the World's Helicopters, another Maksim Starostin website, contains a robust helicopter directory. Here, you can learn about more than 300 U.S. helicopters, as well as early helicopter designs and flying machines from Russia and the former Soviet Union.