Standard Snowboard Terminology



ASTM Standard Snowboard Terminology 





1.  Afterbody (of the snowboard) - That portion of the snowboard aft of
point O, a distance of LC/2.

2.  Bindings (feet retainers) - Apparatus that attaches the rider's feet to the 
snowboard.

3.  Center of the snowboard body - Point O, which is located at a distance of 
LC/2 + LT from the tail of the snowboard.

4.  Channel, C - That portion which forms a longitudinal groove along the 
running surface of the snowboard.

5.  Contact length, LC - The difference between the projected length, LP and
the sum of LT plus LS or LC = LP - (LT + LS).

6.  Contact surface area - The product of the average width times the contact
length expressed quantitatively as follows:
       (BH + 2BM + BV)
 AC =  ---------------   LC
            4

7.  Edge, E - Sharp, narrow, steel surface that is usually attached
throughout the length of the sidecut and on the bottom edge of the
snowboard.

8.  Fin, F - A fixed, rudder-like appendage which protrudes in a vertical 
fashion past the running surface parallel with the longitudinal axis of the
snowboard.

9.  Forebody (of the snowboard) - That portion forward of point O, a distance of 
LC/2.

10. Free bottom camber, HF - The height of the running surface from a flat
surface measured at the maximum point, with the snowboard held perpendicularly 
on edge, free from the effect of the snowboard weight.

11. Heel (of the snowboard), BH - The widest part of the  tail section
of the snowboard.

12. Leash - A cord-like device wherein one end is attached to the top surface
of the snowboard, or the binding, and the other end provides an apparatus to 
attach to one of the rider's legs.

13. Projected length, LP - Length of the projection of the snowboard,
measured between the snowboard tip and the snowboard tail with
the snowboard body pressed against a plane surface.

14. Running surface - The entire bottom surface of the snowboard bordered by the 
side geometry.

15. Shoulder (of the snowboard), BV - The widest point in the shovel 
section of the snowboard.

16. Shovel length, LS - The projected length of the forward turn-up, measured
from the tip to the contact point where a 0.05 cm feeler gage intersects
the running surface with the snowboard body pressed against a flat surface.

17. Shovel surface area - That surface forward of the shovel contact point.
The shovel contact point is located at LS from the tip.

18. Side camber, W - The maximum distance from a line drawn between the widest
points of the snowboard and the side of the snowboard.

19. Side cut - That line describing the curved portion of the snowboard contour 
limited by the lines BH and BV dimensions, and defined by the bottom edge.

20. Side geometry - The configuration of the curve bordering the running 
surface.

21. Developed length, LN - Bottom contour length from the snowboard 
tip to the snowboard tail, sometimes called the material length.

22. Chord length, LTS - Straight line distance between the snowboard
tail and snowboard tip with the snowboard pressed against a flat surface.

23. Snowboard body - That portion of the snowboard within the dimension of LC.

24. Snowboard tail, T - the extreme rear edge of the snowboard.

25. Snowboard tip, S - the extreme forward point of edge of the snowboard.

26. Tail height, HT - The height of the underside of the tail from a flat 
surface with the center, O, of the snowboard body pressed against the
surface.

27. Tail surface area - That surface from the tail contact point aft. The tail
contact point is located LT from the tail.

28. Tail turn-up length, LT - The projected length of the tail turn-up, measured
from the snowboard tail to the contact point where a 0.05 cm feeler gage 
intersects the running surface with the snowboard body pressed against 
a flat surface.

29. Taper, V - Half of the difference between BV and BH or (BV - BH)/2.

30. Tip height, HS - The height of the underside of the tip from a flat
surface with the center, O, of the snowboard body pressed against the 
surface.

31. Vee, Z - That portion which forms half a V-shape along either side of the 
longitudinal centerline of the snowboard.

32. Waist (of the snowboard), BM - the narrowest point of the snowboard body 
between the heel and the shoulder.

33. Weighted bottom camber, HB - The height of the running surface from a
flat surface, measured at the highest point, with only the influence of the 
snowboard  weight.

34. XBH, XBM, XBV, - The X coordinates for the location of these respective
widths of the snowboard measured in centimeters from the tail of the snowboard.