31-01-2019, 01:48 PM
Just to chip in here . . .
There are specific 'windmill' and 'radio' tower version, do not be fooled into thinking there is only One. Mine at home is a 'KVC' model, there was a later 'KVD' model, I have never been clear as to what the differences were.
Windmill towers have a much wider base on them to deal with the windmill windage at the top and do not go much over 40' in the old money (there were exceptions to this rule however) and their cross bracing was lighter than the radio towers as the radio towers needed to be more rigid in constrcution.
The 'radio tower' version was used extensively around OZ by government and commerical companies and is much narrower than the Windmill tower and has more bracing on its sections plus was commonly available up to 80' in height or special orders to over 120'
hope this clears it up... if someone says they have a southern cross tower, you NEED to ask which one they mean, the windmill towers WILL twist slightly as it is part of the design to absorb the stress of wind gust and the mill head swinging around in the breeze.. be wise be informed.
Peter.
There are specific 'windmill' and 'radio' tower version, do not be fooled into thinking there is only One. Mine at home is a 'KVC' model, there was a later 'KVD' model, I have never been clear as to what the differences were.
Windmill towers have a much wider base on them to deal with the windmill windage at the top and do not go much over 40' in the old money (there were exceptions to this rule however) and their cross bracing was lighter than the radio towers as the radio towers needed to be more rigid in constrcution.
The 'radio tower' version was used extensively around OZ by government and commerical companies and is much narrower than the Windmill tower and has more bracing on its sections plus was commonly available up to 80' in height or special orders to over 120'
hope this clears it up... if someone says they have a southern cross tower, you NEED to ask which one they mean, the windmill towers WILL twist slightly as it is part of the design to absorb the stress of wind gust and the mill head swinging around in the breeze.. be wise be informed.
Peter.