..
It WAS true - at one time.
The BD5 was the smallest jet by quite bit.

Before the CriCri showed up...

Must have been about nine or ten years ago, someone's
BD-5J performed at an Armed Forces Day air show
at Whidbey Island Naval Air Station.
I think the show moderator called it the World's smallest
Jet, but memory is a fragile thing.
I think I have pictures somewhere, but darned computer
won't cough 'em up.

Old Chief Lynn