Help Hugh with His Aircraft Projects!

Figure 119-1 Fragments of Hugh’s P-51 project

For over ten years Hugh Thomson has published marvelous posts in his blog about the historical aircraft. Just look there to see the P-51 Mustang, F6F Hellcat, F4F Wildcat and B-25 Mitchell CAD models and – what is sometimes even more important – compiled datasheets of their ordinates. The true, accurate geometrical data are usually dispersed and difficult to reconcile in the thousand sheets of the faded out, barely readable original blueprints. Hugh studied them all and is providing this information in the easy-to-use form. If you need such data on any of these aircraft – visit his page and choose any of these packages, or just make there a donation, to support his future projects!

Continue reading Help Hugh with His Aircraft Projects!

Original SBD Dauntless Blueprints: Fuselage Geometry (4)

In the previous post I used ordinals from the newly found fuselage geometry diagram for creating a set of the 3D reference planes:

Figure 118-1 Fuselage data points, grouped into intersecting planes

In this post I will span a smooth subdivision surface between these points. I think that such an interpolation will provide a more accurate reference than the longerons (stiffeners), which I previously shaped in this post (see there Figure 112-07).

Continue reading Original SBD Dauntless Blueprints: Fuselage Geometry (4)