A good effort so far by C4 but hopefully the last episode will be mostly about Dave flying the Spit as the story of the Battle has been pretty well covered I think.
PS Rallye Driver I think it was the Hurricane that had a nested tube mainspar which is why, until recently, after the original dies were "discovered", there were so few of them flying. The Spit had a fabricated spar which is much easier to rebuild hence their relatively high numbers.