John those Planes without a shadow of a doubt would have been fashioned from the

Sea Plane Factory housed in the tunnels in photos above suppled with thanks from Rafflesbear. I have got to get down there.

The public air raid shelters in Rochester are a completely different system of tunnels. These are old chalk working similar to the Chislehurst workings where I used to guide.

I think these may be The tunnels Growler told me about at the Good Intent but I felt concern on his behalf towards me that they are on private property and for me to stay away.

Rapaire
Indeed you do share the same fascination has me.