Walter Banks wrote:
> I saw a working DC-3 flying recently probably more than 60 years old
> and first ones developed and built in the 1930's even more amazing
> considering the how relatively close to dawn of flight that was.

Massachusetts had a small fleet of DC3s at least a few years ago.  I
remember them mentioning that on the radio once when discussing spraying
against mosquitos that were causing eastern equine encephalitis.

> How many other high technologies are still in active service at that
> age?

Plenty, but I guess it depends on what you call "high technology".  Being
able to produce fire on demand must have been pretty high tech and way cool
30000 years ago.  Steam engines and their modern derivatives were the
leading edge of technology not that long ago, and modern engines are still
at the leading edge of technology.  This list goes on.  AM radio, broadcast
television, color television (now that was a really clever and high tech
enhancement to B+W television in my opinion), automobiles, the transistor.
Some of these are a bit newer than powered flight, but are also expected to
be around for a while.


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