The only example of the XC-99 was put into service and made its first operational flight in July 1950.
It was used as part of Operation Elephant in which it broke a record by transporting 101,266 lb of cargo, a majority of which included engine parts and propellers for the B-36, from San Diego to Kelly Air Force Base in Texas.
The XC-99 would go on to break its own record in August 1953 when it transported 104,000 lb worth of cargo from Kindley Air Force Base in Bermuda to Rhein-Main Air Force base in Germany via the Azores islands. The unusual design features of the XC-99 prompted many public spectators to turn out to watch it during the journey.
Katy Freeway in Houston TX is one of the widest highways in the world. I never want to drive on it!
