Roughly something like this?
Took a cylinder with 1 section, deleted the front vertical edge to make it open.
In symmetrical mode, pulled the wing tip bottom vert down and out and shaped the others to match.
Out of symmetrical mode - selected the top horizontal edge, extruded once inward and once down.
Level 2 smoothing.
Flattened slightly front-to-back.
You would need to cut in sufficient vertical edges to match where it will attach to the neck in order to weld.
Hope this helps a bit?