Mamoru Nagano and Vifam

[doghunter1]

Didn't know where to ask this, but since it involves mechanical designers, I might as well put it here. Anyways, where is it mentioned Nagano designed for Ginga Hyoryu (Galactic Drifter)/Round Vernian Vifam anyways? I mean, from where I've read, it was only Kunio Okawara who did mechanical designs for that show.