Flat aspect ratio 5.45 Glider weight 7.15-7.6 Take-off weight 110-220 Mini Ribs Mini Ribs make the trailing edge coherent, smooth and sharp and improve performance by streamlining the airflow on the wing. V Bridge System Technological solution for optimized Optimized load distribution and cleaner foil and compact canopy. Triple 3D cut 3D shaping of the leading edge for a clean foil - two technical cuts on the top surface, one technical cut on the lower surface. LEO Leading Edge Optimization. Composite nose construction brings precise tension, pressure & structure and stability. Can you imagine a tandem glider with light and precise handling, effective glide at high speed and efficiency and ease in the turn? For you we designed APPOLO BI – an EN C Sport-Line tandem glider for the skilled tandem pilot who appreciates responsive and sensitive handling.