Derek raises a point of Jargon.
"foreplane" seems to cause difficulty, not helped by some people INSISTING that an anachronistic interpretation is the only one.
Once upon a time (Moxon!) foreplane meant the first plane; in modern jargon we'd call it a scrub, or "coarse jack", or "cambered jack" or similar.
Foreplane today (and for the last 50 years IMHO) has been used a synonym for try-plane. In the same period it is a near synonym for "panel plane".
In the same period a Bailey #6 is commonly called a foreplane (and equally often a try plane).
Using the term foreplane in the older sense, without qualification or explicit contextualisation is at best unhelpful, and at worst pretentious and deliberately deceptive.
Derek is most definitely not guilty of this - his text is most helpful.
BugBear