Fastest differential speed – propeller-powered land yacht

Fastest differential speed – propeller-powered land yacht
Who
Rick Cavallaro, John Borton
What
2.8 total number
Where
United States (El Mirage, CA)
When
The fastest differential speed by a propeller-powered land yacht is 2.8 times the true wind speed while sailing directly down wind, achieved by Rick Cavallaro and John Borton (both USA) in their land yacht "Blackbird" on El Mirage dry lake, California, USA, on 3 July 2010. The record was attempted according to the rules and regulations of NALSA.