AbstractTo investigate the effects of mh45 airfoil on performance criteria of wingless body during flight. This investigates the dimensions of a prototype airfoil geometry for a wingless aircraft. The wing is including MH45 airfoil profile and is of swept wing design. The investigation framework dictating is mathemeatical analysis of geometry, analysis of geometry using computer aided design, parts list and reducing part count, mechanical linkages, optimisation of parts using finite element analysis of stress, strain, Vonmises stress, rib, stringer and spar design with attachements, analysis of range, turning circle, accerleration, landing distance, bank angle, landing distance,Vstall, lift curve comparison, take off distance using spread sheet software, extending flap:- kruger including all extending and retracting linkages, coefficient of lift, coefficient of drag, induced, profile, trim, parasitic and total using spreadsheet software. The second part is investigating the computational fluid dynamics of the domain with inlet, outler, farfield and airfoil using two types of domain companies. The domain is set to equal flight characteristics of velocity, altitude, temperature, dynamic viscosity, prssseure, and using turbulence model best suitable to the domain environment being K-omega and the reasoning why not K Epsilon, Shear Stress Transport or Laminar. The investigation is looking at the turbulence kinetic energy, turbulence eddy viscosity, pressure, temperature, velocity, lift, total drag, voriticity, and shear layer near wall, natural frequency, torsional natural frequency and thermal loading. The domain generating boundary conditions as setting as above and including boundary layer thickness, separation point. The domain computing time is by dual core processor running computational fluid dynamics by distrtisation of results of turbulence Kinetic Energy, pressure and Velocity, computer aided design, computer aided engineering and assembly.…