There's no difference. 369 was the manufacturer's model series and on the
type certificate. "500" was the marketing name.

"Kent Shih" wrote in message
...
How do you tell the difference between Hughes 369D and 500D from the
outside?

Does any one know if that Hughes (TC's) helicopter appeared in Magnum
P.I.'s
TV shows a 369D or a 500D?

--
kent