If wing spars or whatever are being load tested, rather than make sandbags one could go to the garden centre or agriculture supply and borrow bags of chemical fertilizer. They will already have their weight printed on them and so on.
Bill Weir
If wing spars or whatever are being load tested, rather than make sandbags one could go to the garden centre or agriculture supply and borrow bags of chemical fertilizer. They will already have their weight printed on them and so on.
Bill Weir