mike3 wrote:

""THE DISC IS HEXAGONAL IN SHAPE AND WAS SUSPENDED FROM A BALLON [sic]
BY CABLE, WHICH BALLON [sic] WAS APPROXIMATELY TWENTY FEET IN
DIAMETER. MAJOR CURTAN FURTHER ADVISED THAT THE OBJECT FOUND RESEMBLES
A HIGH ALTITUDE WEATHER BALLOON WITH A RADAR REFLECTOR, BUT THAT
TELEPHONIC CONVERSATION BETWEEN THEIR OFFICE AND WRIGHT FIELD HAD NOT
[unintelligible] BORNE OUT THIS BELIEF."" -- FBI Telex, 1947

Could Roswell just have been a balloon crash?

No.