MAC PARA Yukon, User Manual

5

TECHNICAL DESCRIPTION 

Construction of the canopy:  

The canopy of the YUKON consists of 46 cells over the wingspan. The wingtips are 
slightly pulled down and this produces a kind of stabilizer. The Yukon is a second rib 
diagonal-construction paraglider. Every second main rib is attached to the 4 or 5 
suspension lines. Between these main suspension ribs, intermediate ribs are 
suspended by diagonal segments. These segments do not lead to top surface of canopy 
but are attached at 80% of rib's height. This construction ensures a smooth top surface 
and precise airfoil reproduction. The internal reinforcements maintain the precise form of 
the canopy and provide stability. The cell openings on the under-surface of the profile's 
nose provide airflow into the glider. Stretch resistant flares, integrated with diagonal ribs 
at the suspension points, ensure an even distribution of load throughout the canopy. A 
stretch resistant Mylar strip on the top and bottom panels alongside the openings and 
running the length of the trailing edge defines the wingspan, together with an optimized 
sail tension; this guarantees a high form stability. Large cross ports allow effective 
airflow inside the canopy, providing good re-inflation without reducing the profile 
accuracy.. 

The Yukon is mainly made of the proven Nylon fabrics Porcher Marine Skytex 36 E68A, 
Skytex 27 E71A and Skytex 32 E29A. Like any synthetic material, this can deteriorate 
through excessive exposure to UV. 

Rigging system: 

The lines of the Yukon are made of proven strong and stretch resistant Dynema  and 
Vectran lines. Brake lines are from Dynema material. The entire rigging system 
comprises individual suspension lines looped and stitched at each end. The 
Arami/Polyester main lines have strengths from 140 up to 230 kg. The Vectran cascade 
lines have strengths from 53 kg up to 122 kg.  The Dynema cascade lines and brake 
lines have strengths from 60 kg up to 100 kg