Future SSTs
Other supersonic planes are currently under design. President Ronald Reagan called for a program to develop a
hyperspace transport or
National Aerospace Plane capable of going from New York to Tokyo in two hours.

Photo courtesy NASA
One concept of the National Aerospace Plane
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Photo courtesy NASA
Another concept of the National Aerospace Plane
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Such planes would have to enter outer space in a
suborbital flight. They would have to develop the
air-breathing rocket engines necessary to achieve the appropriate speeds and deal with the intense heat of re-entry, much like the
space shuttle.
For more information on SSTs and related topics, check out the links on the next page.