These are the carpentry techniques for SDT jointing used by the world’s experts.  They render impossible any meaningful engineering analysis:

 

All of the following expert entities are aware of the LPSA technology.  They have all chosen not to challenge it but simply to stay silent.  Considering their state-of-the-art (below) that belongs to the pre-computer age, their silence is understandable but NOT excusable.

 

1.  A European-funded consortium from: Austria, Finland, France, the Netherlands and UK.  Their final report (1999) is at: www.vtt.fi/inf/pdf/publications/1999/P383.pdf

2.  The Forest Products Laboratory, USA.  See: www.fpl.fs.fed.us/research/units/fpmu/small_diameter_roundwood.shtml

3.  TRADA, UK (Timber R&D Association):  www.forestry.gov.uk/pdf/crwoodproducts27.pdf/$FILE/crwoodproducts27.pdf