This is an old revision of the document!
At some point it was decided that Sweet Ramps would allow for Sweet Jumps.
Here's a write-up from J. Ashinghurst of Baltimore Burners:
As there has been interest (From Jim, mostly) in using ramps in every corner at every race, here's my ramp dimensions in case anyone wants to build a ramp for testing/racing/sweet stunts.
Ramp Surface: 48” wide x 42” Long 1/2” plywood.
Transitional edge: 48” wide by 8” (6” should work) long 16 gauge steel, with 3” overhanging the edge
Ramp support:
Screw it all together+paint.
Our ramp has a 3” overhang to hide a propane reservoir, so the center two ribs were cut short and slightly shorter 14” 2×6's were used.