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nigelswift wrote: Warn't me that did the Avon valley research. I think we found a paper showing what the landscape was like at that time. Cores? No doubt the new route-lookers will find that too.
"I seem to recall our concrete block was not the full 40 tons of the prototype". 17 tons I think, which is 3 or 4 blue stones so not bad.
I do recall uphill was a swine, but still just do-able, until the local tug-o-war team helped the townie megalithomaniacs and the thing shot up the hill at a hell of a lick and straight off the rollers without an appreciable loss of speed! It taught me brute force is best.
Ah.... my bad on the understanding front. So many things I’ve forgotten. But thanks for the info. I certainly remember the rapidity with which the block shot up the hill, and the abrupt impromptu stop that we had to make to the whole exercise.
Peace (and thanks again)
Pilgrim
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