I had some time to dig (electronically) yesterday, and here's
the best lead I turned up:
Fiona Cathay is one of the lead characters of Philip Wilding's
Space-flight Venus from 1954. Below my sign-off is the only thing
I could find that actually referenced the content of the book.
It's a brief review from the November 1954 issue of New Worlds
Science Fiction.
I don't know if it fits or not, but maybe it's enough to lead
someone else to figure it out.
It's kind of a hoot to read, by the way - hyphens a-plenty,
"bosomy", "Well, well!"
Tony
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From the November 1954 issue of New Worlds:
In complete contrast, Philip Wilding's Space-Flight Venus (Hennel
Locke 9/6), is the sort of trivial nonsense which can have but limited
appeal. The style is strongly reminiscent of the "Flash Gordon"
type of comic-strip, replete with handsome virile space-men and their
beautiful, bosomy female counterparts, all dressed in the correct 21st
century space-technician fashion - a 'bare' minimum of nylon and
ornaments. The story opens with the lovely Fiona Cathay joining as
a scientist the gadget-ridden secret rocket field in Mexico, from which
her ever-loving space pilot, Dale Picart, will lead an expedition to
Venus. An orthodox route is to be used, via an earth satellite and
subsidiary fuelling stations, and indeed some serious attempt is made
to infuse a little scientific accuracy in this episode. But the inevitable
happens and the Venusians turn out to be - yes, handsome virile men
and their beautiful bosomy female counterparts, without exception,
and complete with a super-scientific utopian set-up. One of the Earth-
men, though, is a villian, and becomes a drunken murderer, hardly
the conduct one expects on Venus, and I was relieved to find he came
to a sticky end, whilst Dale, who for one awful moment nearly fell for
a Venusian plunging neckline, returns safely to the immaculate Fiona.
Well, well!