Anti-vibration observatory piers (Part 2: The foundation and fastening of the pier)

Anti-vibration observatory piers (Part 2: The foundation and fastening of the pier)

[@dobermannbite]

I got one of the last of these beauties and it sits now as a living memorial to the wonderful Ralph. I hope one day Astro Engineering will rise again. Love and best wishes

[@jamracingteam2817]

You say 1mx1mx1m and then a metric tonne of concrete, considerable way off. It would be a tonne of water but about 2.4 tonnes of concrete. You then go on to say a tonne of concrete is adequate, the dimensions of the hole would therefore be much less than, in fact only 0.42mx0.42mx0.42m. So my question is this, which are the correct figures?