The current record for greatest altitude achieved by a water and air propelled rocket [13] is 2044 feet (623 meters), held by U.S. Water Rockets [14] on June 14, 2007. This altitude was calculated by averaging two flights. The first flight achieved 2068 feet (630 meters) and the second 2020 feet (615.7 meters). The rocket also carried a video camera as payload on both flights as part of the verification required by the competition rules.
