Abstract: Operating an engine includes opening and closing exhaust valves in an engine braking timing pattern, charging a first cylinder with air fed directly from an intake manifold, and releasing the directly fed air in a first braking event. Operating the engine further includes charging the first cylinder with air fed via a flow-through path through a second cylinder operating as an air conduit, and releasing the air fed through the flow-through path and pressurized to brake the engine in a second braking event. Related apparatus and valve lift profiles are also disclosed.

Abstract: A surfboard is constructed to have a soft deck by forming a lower body of a rigid foam material covered with a fiberglass resin coating and forming a deck insert of resilient foam material secured to the deck of the lower body and covered by a flexible impervious covering. The method of making the surfboard includes the shaping and covering of the lower body, the shaping and application to the upper deck of a resilient foam material and the covering of the foam material with a flexible impervious cover.