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The Spirit of Butt’s Farm:

• covered around 31.67 m/kJ
• and moved mass at around 0.16 – 0.086 kg.m/J

The MacCready Gossamer Albatross covered around 2.0—4.6 m/kJ and moved mass at around 0.1882 —0.4577 kg.m/J

The Boeing 747-400 covers around 2.1m/MJ and moves mass at around 0.39 – 0.83 kg.m/J

The Airbus A320 covers around 7.8 m/MJ and moves mass at around .33 – .61 kg.m/J.

The North American P-51 Mustang flew around 0.073—0.092 m/kJ and moved mass at around 0.25 – 0.50 kg.m/J

The Vickers Vimy flew around 0.025—0.050 m/kJ and moved mass at around 0.081 – 0.25 kg.m/J.

The Wright model B flew around 0.10—0.21m/kJ and and moved mass at around 0.036 – 0.12 kg.m/J

The Wright Flyer flew around 0.08-0.17m/kJ, and moved mass at around .02 – .06 kg.m/J