Options climbing out on 08 are better than 26.
Again, qualifying any thought on what happened as wild conjecture - I've not flown a Tiger Moth but have flown quite a few microlights and a few biplanes. With lots of profile drag and a big wing, but relatively little inertia - an engine failure gives little time to respond before losing speed and control. On the other hand, presumably the Tiger Moth, like most other aeroplanes pitches up with power - so a sudden loss of power is likely to create a nose-down pitching moment, helping to maintain flying speed (albeit at the expense of height).
Not conjecting however - a very well known characteristic of that airfield is that any significant southerly component to the wind tends to create substantial amounts of rotor in the vicinity of the runway. A quick look at the two photographs above, make the reasons for that very obvious. I have several times had significant difficulty maintaining control of lightweight microlights on approach or departure at CA with a southerly component.
G