The Burnelli machines had an airfoil shaped fuselage; some indicate near 10% of lift in a 21 century airliner comes from fuselage; 'Flying Wing' concept is old, and still attracts many; bottom of SR-71 looks shapen as a high speed race boat; at very high speeds, air is thick, not as a brick, but as 'marmelade', it's a Reynolds Number affair, this figure, you know, expresses relations of inertia and viscosity forces inside a fluid. Would a flat bottomed fuselage add even more lift than the regular round section, increasing the overall fuel economy of an airplane? Does the concept deserve Aerodynamic Wind Tunnel testing? Blessings +
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• The Burnelli machines had an airfoil shaped fuselage;

• some indicate near 10% of lift in a 21 century airliner comes from fuselage; 'Flying Wing' concept is old, and still attracts many;

• bottom of SR-71 looks shapen as a high speed race boat;

• at very high speeds, air is thick, not as a brick, but as 'marmelade', it's a Reynolds Number affair, this figure, you know, expresses relations of inertia and viscosity forces inside a fluid.

Would a flat bottomed fuselage add even more lift than the regular round section, increasing the overall fuel economy of an airplane? Does the concept deserve Aerodynamic Wind Tunnel testing?

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The Burnelli machines had an airfoil shaped fuselage; some indicate near 10% of lift in a 21 century airliner comes from fuselage; 'Flying Wing' concept is old, and still attracts many; bottom of SR-71 looks shapen as a high speed race boat; at very high speeds, air is thick, not as a brick, but as 'marmelade', it's a Reynolds Number affair, this figure, you know, expresses relations of inertia and viscosity forces inside a fluid. Would a flat bottomed fuselage add even more lift than the regular round section, increasing the overall fuel economy of an airplane? Does the concept deserve Aerodynamic Wind Tunnel testing? Blessings +
[]

The Burnelli machines had an airfoil shaped fuselage; some indicate near 10% of lift in a 21 century airliner comes from fuselage; 'Flying Wing' concept is old, and still attracts many; bottom of SR-71 looks shapen as a high speed race boat; at very high speeds, air is thick, not as a brick, but as 'marmelade', it's a Reynolds Number affair, this figure, you know, expresses relations of inertia and viscosity forces inside a fluid. Would a flat bottomed fuselage add even more lift than the regular round section, increasing the overall fuel economy of an airplane? Does the concept deserve Aerodynamic Wind Tunnel testing? Blessings +
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