Rutan awarded TERF Inc. the job of publishing the plans for the Long-EZ and other of his aircraft under The Rutan Aircraft Factory CD ROM Encyclopedia to further assist new builders and maintenance for existing builders. Some components for the design are supplied by Aircraft Spruce & Specialty. In 1997, Dick Rutan and Mike Melvill flew in convoy around the world in two Rutan Long-EZ aircraft that they had built. This "around the world in 80 nights" flight was called The Spirit of EAA Friendship World Tour, and some legs of it lasted for over 14 hours. Variants E-Racer An extensively modified redesign using Long-EZ wings with a fuselage modified for side-by-side seating, retractable landing gear, and larger automotive engine conversion powerplants. EZ-rocket XCOR Aerospace modified a Long-EZ and replaced the engine with twin liquid-fueled rocket engines to form a flight test vehicle called the EZ-rocket, which was used as a proof-of-concept demonstrator. Initially, a follow-on version called the "Mark-1 X-Racer, was going to be developed for the Rocket Racing League, but the Velocity SE was subsequently selected as the airframe for the Rocket Racer, rather than the Long-EZ. Twin EZ Ivan Shaw built a Long-EZ and then converted it into a "Twin-EZ", an aircraft with twin wing-mounted Norton Wankel engines (precursors to the MidWest AE series). Shaw, a Yorkshireman, later designed the Europa XS kitplane. Long ESA A 258 hp electric engine conversion. On 19 July 2012, pilot Chip Yates achieved 202.6 mph in level flight, making the aircraft the fastest man carrying electric powered aircraft. Berkez or Berk-EZ Heavily modified Long-EZ with Berkut 360 components. Wright Stagger-EZ A Steve Wright three-seater design, using standard Long-EZ wings but with a dihedral canard and a rounder, more capacious fuselage. The pilot seat is standard Long-EZ, the co-pilot seat is offset to the right and 13" rearward, and behind the pilot seat is a third seat for a passenger. The co-pilot has a control stick but no rudder pedals. Only one Stagger-EZ was built. Long-distance EZ (G-WILY) A standard Long-EZ modified by Bill Allen for long distance, with two wing droptanks for extra luggage and a large additional fuel tank in place of a passenger seat. Bill Allen also installed a Wilksch WAM diesel engine in one Long-EZ that he had built. Borealis Powered by a pulse detonation engine. The project was developed by the Air Force Research Laboratory and Innovative