activities with runners or other materials sliding on ice/snow
- iceboat
- 85 degree to 105 degree face
- tip stoned to sharp point
- usually hardened to 47 to 57 Rockwell
- very low rocker or crown
- skates
- hockey skate
- hollow ground bottom steel
- medium rocker
- flared hockey skate blades
- goalie skate
- squared off bottom
- squared off bottom
- sharp stones edges
- speed skating
- squared off bottom
- sharp stoned edges
- low rocker
- Calgary - sharpen speed skates
- figure skating
- hollow ground
- large rocker
- very sharp
- ice track on closed course downhill
- corners are banked to keep vehicles on course
- bobsled
- large radius rounded edge
- very smooth surface
- bobsled runners and ice characteristics
- luge
- runner is canted at 45 degrees
- sharp edge bottom
- luge runners
- skeleton
- round edge
- multiple grooves only at rear edge (2 mm max.)
- http://www.davenportsleds.ca/runners.htm
- Alberta skeleton rules
- downhill ski
- cross country ski
- dog sled
- radio flier sled
- horse drawn sleigh
- curling stone
