The "new vehicle" for the next convention is going to be the helium balloon used in Project Excelsior, allowing players to recreate that effort:
Project Excelsior on 16 August 1960, Joseph Kittinger achieved the record for the longest free-fall jump of 4 minutes and 36 seconds and the fastest maximum speed of 614 mph (982 km/h), before opening his parachute at around 18,000 feet (5,500 m).[2] Kittinger started the jump from a specially constructed balloon at an altitude of 102,800 feet (31,300 m), which also qualified him for the highest balloon ascent and highest parachute jump.
See, all makes sense now.
