RC Plane Ski

This Ski design scales really well, I have printed sets as small as 40% for small fomies and as large as 130% for 40 to 60 size planes. The pictures are of version 2, which didn't have the rounded nose.
Print with 75 to 100% fill, with supports, 0.2 to 0.3mm layers, PLA prints well but may become brittle in real cold temperatures ABS or Nylon will tolerate the cold much better.
The holes may need to be drilled out if the scale is reduced.

This design requires the use of a wheel collar, 2 is best but a single one will work, and the spring from a small clamp (use smaller springs for smaller skis) for each ski, I have also used the collar from a prop saver.
I replace the set screw in the wheel collar with a 12 to 16mm long 2mm or 3mm screw, only one collar per wheel needs this done.
For a 2 collar setup, put the one with the extended screw on the axel, for a one collar setup just put the ski on.
The spring needs to be bent, put the spring on the axel tight to the ski then put a