Mark,
I can't claim ownership of the balloon pictures, I believe they come from the sales catalogue of a well know inflatables company!!
We can discuss this further at Donington on Monday, all being well, as I intend to venture far beyond my comfort zone, and head 'well North' for the first time in many years.
With regard to the first picture, it originaly came with the comment that the occupants of the buildings shown were very scared!!!!!!
Knowing your interest in airships, Zepplins and all kinds of dirigibles I will keep an eye open for further examples of these craft in action.