The short nine has to be one of the most poorly served jets in 1:400 scale, which is a crying shame when it is such an important type too. The Jet-X mould is surprisingly good but was used only a handful of times. There are lots to be made and we desperately need more of this earliest DC-9 series:
Jet-X Douglas DC-9-10s by rstretton, on Flickr
Jet-X Douglas DC-9-10s by rstretton, on Flickr