Clik 21 is already the 5th iteration of our incredibly successful, classic indoor design. This time we have gone again fully for EPP/carbon construction, resulting in a plane that is much more crash tolerant (always a welcome feature indoors!). The rough surface of EPP also improves slow speed characteristics and downline braking and allows for a lighter construction. The fuselage side area was increased and T-canaliser added for excellent knife edge and integrated performance. Compared to previous type, system of brakes was improved and the ailerons were reinforced by carbon mesh for better efficiency and zero twisting.