Word: stumpier
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Dates: during 1980-1989
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...achieve this, the M.I.T. team built a gearbox with a 2-to-3 ratio instead of using a standard bicycle chain to transmit pedal power to the 11-ft. propeller. In addition, Aeronautical Engineer Mark Drela designed an extra-thin wing that provides 30% more aerodynamic lift than stumpier conventional wings. The team chose a strong, lightweight graphite compound to mold the plane's hollow, dime-thick spine...
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