Redundant flotation is the key feature of this air-holding tube. High-density, non-absorbent foam is packed into each chamber. In the rare event of a breach in the polyurethane fabric and a loss of air pressure, the packed foam maintains the chambers shape and 90% of it's flotation factor.
A record locator is an alphanumeric code, typically 6 characters in length, used in airline reservation systems to access a specific record.
The SR-71 Blackbird is the current record-holder for a manned airbreathing jet aircraft. An air speed record is the highest airspeed attained by an aircraft of a particular class. The rules for all official aviation records are defined by FÃ©dÃ©ration AÃ©ronautique Internationale (FAI), which also ratifies any claims. Speed records are divided into multiple classes with sub-divisions.