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Figure 2. The energy delivered to a board is a function of striking speed and apparent mass for a one-side hold. Note that now the horizontal plane covers more of the breaking energy curve, signifying a more difficult break.

Figure 3. The energy delivered to a board is a function of striking speed and apparent mass for a two-handed hold where the holders absorb 85% of the force. Note that now the horizontal plane covers most of the breaking energy  curve, signifying a very difficult break.

Figure 4. The energy delivered to a board is a function of striking speed and apparent mass for a two-handed hold where the holders absorb 80% of the force. Note that now the horizontal plane covers most of the breaking energy  curve, signifying a near impossible break.

Reference

• Bill Pottle, ABEN 456, 10/9/00

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