Robert Lajda bicycle enthusiast glider pilot tricycle designer and constructor longtime experience from ultra light airplane and glider construction. Projects- 1997 – Fokker Dr1 Dreidecker full scale model construction. 2001 - Reconstruction of historic glider SG-38 Schulgleiter for aviation museum of Jean Salis in France. 2004 – 2008 – living in London-personal experience from transport in urban environment - everyday bike commuting. 2012 – kids tricycle construction 2013 – start of the EGG tricycle project 2014 - DADAmobile 2015 - BEE -the most versatile urban tricycle in the world, maybe the universe :o)