A selection of apertures in aeroplane structures, where interruption of surface continuity is kept at a minimum and so any variation in the surface becomes highly specialised – all the elements that cannot be contained by the main fuselage. I have been working on similar architectural surfaces and might post some soon. I have a few more of aeroplane examples so will post a few more soon. I especially enjoy the difference between the smooth aerodynamic exteriors and the folded and ribbed structures found inside.