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A vehicle includes one or more structural vent channels for blast energy and gas and debris dissipation. The structural enclosure of a vehicle includes a hull floor and encloses or defines a compartment for crew, cargo, or crew and cargo. The channel provides a passage through, around, or through an

A vehicle includes one or more structural vent channels for blast energy and gas and debris dissipation. The structural enclosure of a vehicle includes a hull floor and encloses or defines a compartment for crew, cargo, or crew and cargo. The channel provides a passage through, around, or through and around the vehicle, by which blast energy and debris can be dissipated from explosions beneath the vehicle.

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1. A vehicle product comprising: a structural enclosure of a vehicle, the structural enclosure including a hull floor and enclosing a compartment for crew, cargo, or crew and cargo; anda structural vent channel attached to the structural enclosure and configured to vent energy and effluent from a bl

1. A vehicle product comprising: a structural enclosure of a vehicle, the structural enclosure including a hull floor and enclosing a compartment for crew, cargo, or crew and cargo; anda structural vent channel attached to the structural enclosure and configured to vent energy and effluent from a blast originating beneath the vehicle through the structural enclosure, the structural vent channel comprising a channel providing a passage extending vertically through the compartment and comprising one or more walls extending from an open bottom end at the hull floor to an open top end at or above an upper surface of the structural enclosure, the one or more walls attached at the bottom end to the hull floor and comprising, at least adjacent the open top end, a plurality of vertical wall surfaces, the structural vent channel further comprising a rectangular cross section at all locations between the open bottom end and the open top end; anda reaction producing source triggerable in response to an explosive force beneath the vehicle. 2. The vehicle product of claim 1, wherein the open top end is disposed above a ceiling of the compartment, and the passage is sealed from the compartment. 3. The vehicle product of claim 1, wherein the channel is attached at the top end to a roof of the structural enclosure. 4. The vehicle product of claim 1, wherein the channel comprises a tube. 5. The vehicle product of claim 1, wherein the one or more walls of the channel include a converging section attached at the hull floor. 6. The vehicle product of claim 1, further comprising a slot opening toward a rear of the vehicle hull. 7. The vehicle product of claim 1, further comprising one or more additional channels extending vertically through the compartment from an open bottom end to an open top end, each of the channels comprising one or more walls attached at the bottom end to the hull floor, the open top end disposed above a ceiling of the compartment, each of the channels providing a passage through the vehicle, the passage sealed from the compartment. 8. The vehicle product of claim 1, wherein the hull floor comprises a rigid floor. 9. The vehicle product of claim 1, wherein the hull floor comprises a V shape. 10. The vehicle product of claim 1, wherein the channel comprises a structural component of the structural enclosure of the vehicle. 11. The vehicle product of claim 1, wherein the reaction producing source comprises a source of compressed gas, an explosive device, or a rocket. 12. The vehicle product of claim 1, wherein the hull floor comprises a V shape, and further comprising a further structural vent channel comprising an element having a surface shaped to redirect a blast flow originating beneath the structural enclosure, the element attached to the structural enclosure beneath the hull floor. 13. A vehicle including the vehicle product of claim 1. 14. The vehicle of claim 13, wherein the vehicle comprises an armored vehicle. 15. The vehicle product of claim 1, wherein the rectangular cross-section of the structural vent channel is constant from the bottom end to the top end. 16. The vehicle product of claim 1, wherein the hull floor comprises a double V shape including sloped surfaces, and the walls of the channel are attached at the bottom end to the sloped surfaces. 17. A vehicle product comprising: a structural enclosure of a vehicle, the structural enclosure including a hull floor and enclosing a compartment for crew, cargo, or crew and cargo; anda structural vent channel attached to the structural enclosure and configured to vent energy and effluent from a blast originating beneath the vehicle through the structural enclosure, the structural vent channel comprising a channel providing a passage extending vertically through the compartment and comprising one or more walls extending from an open bottom end at the hull floor to an open top end at or above an upper surface of the structural enclosure, the one or more walls attached at the bottom end to the hull floor and comprising, at least adjacent the open top end, a plurality of vertical wall surfaces, the structural vent channel further comprising a rectangular cross section at all locations between the open bottom end and the open top end;a further structural vent channel comprising an element having a surface shaped to redirect a blast flow originating beneath the structural enclosure, the surface attached to the structural enclosure adjacent a side of the hull floor; andan additional element nested within the element, the additional element having a surface shaped to redirect a blast flow originating beneath the structural enclosure. 18. A vehicle product comprising: a structural enclosure of a vehicle, the structural enclosure including a hull floor and enclosing a compartment for crew, cargo, or crew and cargo;a structural vent channel attached to the structural enclosure and configured to vent energy and effluent from a blast originating beneath the vehicle through, around, or through and around the structural enclosure, the structural vent channel comprising a channel comprising one or more walls and extending from an open bottom end at the hull floor to an open top end at or above an upper surface of the structural enclosure; anda further structural vent channel comprising a shell attached to the structural enclosure and spaced away from and extending over a portion of the hull bottom and up along sides, the shell configured to rupture in an area upon a blast originating beneath the structural enclosure. 19. A vehicle product comprising: a structural enclosure of a vehicle, the structural enclosure including a hull floor and enclosing a compartment for crew, cargo, or crew and cargo; anda structural vent channel attached to the structural enclosure and configured to vent energy and effluent from a blast originating beneath the vehicle through the structural enclosure, the structural vent channel comprising a channel providing a passage extending vertically through the compartment and comprising one or more walls extending from an open bottom end at the hull floor to an open top end at or above an upper surface of the structural enclosure, the one or more walls attached at the bottom end to the hull floor and comprising, at least adjacent the open top end, a plurality of vertical wall surfaces, the structural vent channel further comprising a rectangular cross section at all locations between the open bottom end and the open top end, wherein the channel comprises a mount for a platform or an accessory. 20. The vehicle product of claim 19, wherein the accessory comprises a radar device. 21. A vehicle product comprising: a structural enclosure of a vehicle, the structural enclosure including a hull floor and enclosing a compartment for crew, cargo, or crew and cargo; anda structural vent channel attached to the structural enclosure and configured to vent energy and effluent from a blast originating beneath the vehicle through the structural enclosure, the structural vent channel comprising a channel providing a passage extending vertically through the compartment and comprising one or more walls extending from an open bottom end at the hull floor to an open top end at or above an upper surface of the structural enclosure, the one or more walls attached at the bottom end to the hull floor and comprising, at least adjacent the open top end, a plurality of vertical wall surfaces, the structural vent channel further comprising a rectangular cross section at all locations between the open bottom end and the open top end, wherein the channel comprises a pick point for lifting or picking the vehicle off the ground. 22. A vehicle product comprising: a structural enclosure of a vehicle, the structural enclosure including a hull floor and enclosing a compartment for crew, cargo, or crew and cargo;a structural vent channel attached to the structural enclosure and configured to vent energy and effluent from a blast originating beneath the vehicle through, around, or through and around the structural enclosure, the structural vent channel comprising a channel comprising one or more walls and extending from an open bottom end at the hull floor to an open top end at or above an upper surface of the structural enclosure; andwherein the hull floor comprises multiple pyramid shapes nested within a base of a larger truncated pyramid shape. 23. The vehicle product of claim 22, wherein the channel extends vertically through the compartment from the open bottom end to the open top end, the channel comprising one or more walls attached at the bottom end to the hull floor, the open top end disposed above a ceiling of the compartment, the channel providing a passage through the vehicle, the passage sealed from the compartment. 24. The vehicle product of claim 22, wherein the channel is attached at the top end to a roof of the structural enclosure. 25. The vehicle product of claim 22, wherein the channel comprises a tube. 26. The vehicle product of claim 22, wherein the channel includes a converging section attached at the hull floor. 27. The vehicle product of claim 22, further comprising a slot opening toward a rear of the vehicle hull. 28. The vehicle product of claim 22, further comprising one or more additional channels extending vertically through the compartment from an open bottom end to an open top end, each of the channels comprising one or more walls attached at the bottom end to the hull floor, the open top end of each channel disposed above a ceiling of the compartment, each of the channels providing a passage through the vehicle sealed from the compartment. 29. The vehicle product of claim 22, wherein the channel comprises a structural component of the structural enclosure of the vehicle. 30. The vehicle product of claim 22, wherein the channel comprises a mount for a platform or an accessory. 31. The vehicle product of claim 22, wherein the accessory comprises a radar device. 32. The vehicle product of claim 22, wherein the channel comprises a pick point for lifting or picking the vehicle off the ground. 33. A vehicle including the vehicle product of claim 22. 34. A vehicle product comprising: a structural enclosure of a vehicle, the structural enclosure including a hull floor and enclosing a compartment for crew, cargo, or crew and cargo;a structural vent channel attached to the structural enclosure and configured to vent energy and effluent from a blast originating beneath the vehicle through, around, or through and around the structural enclosure, the structural vent channel comprising a channel comprising one or more walls and extending from an open bottom end at the hull floor to an open top end at or above an upper surface of the structural enclosure; anda reaction producing source triggerable in response to an explosive force beneath the vehicle, wherein the reaction producing source is located within the channel to provide an upward thrust tending to hold the vehicle down in response to the explosive force beneath the vehicle. 35. A vehicle product comprising: a structural enclosure of a vehicle, the structural enclosure including a hull floor and enclosing a compartment for crew, cargo, or crew and cargo;a structural vent channel attached to the structural enclosure and configured to vent energy and effluent from a blast originating beneath the vehicle through, around, or through and around the structural enclosure, the structural vent channel comprising a channel comprising one or more walls and extending from an open bottom end at the hull floor to an open top end at or above an upper surface of the structural enclosure; anda reaction producing source triggerable in response to an explosive force beneath the vehicle, wherein the reaction producing source comprises a mechanism located at corners of the vehicle to produce an upward force to hold the vehicle down in response to the explosive force beneath the vehicle. 36. A vehicle product comprising: a structural enclosure of a vehicle, the structural enclosure including a hull floor and enclosing a compartment for crew, cargo, or crew and cargo;a structural vent channel attached to the structural enclosure and configured to vent energy and effluent from a blast originating beneath the vehicle through, around, or through and around the structural enclosure, the structural vent channel comprising a channel comprising one or more walls and extending from an open bottom end at the hull floor to an open top end at or above an upper surface of the structural enclosure; anda reaction producing source triggerable in response to an explosive force beneath the vehicle, wherein the reaction producing source comprises a mechanism located at corners of the vehicle to produce a downward force to counter an upward force on the vehicle in response to the explosive force beneath the vehicle. 37. A vehicle product comprising: a structural enclosure of a vehicle, the structural enclosure including a hull floor and enclosing a compartment for crew, cargo, or crew and cargo;a structural vent channel attached to the structural enclosure and configured to vent energy and effluent from a blast originating beneath the vehicle through, around, or through and around the structural enclosure, the structural vent channel comprising a channel comprising one or more walls and extending from an open bottom end at the hull floor to an open top end at or above an upper surface of the structural enclosure;a reaction producing source triggerable in response to an explosive force beneath the vehicle, wherein the reaction producing source comprises a mechanism located at corners of the vehicle to produce a downward force to counter an upward force on the vehicle in response to the explosive force beneath the vehicle or an upward force to hold the vehicle down in response to the explosive force beneath the vehicle,a sensing device to sense an upward acceleration or a downward acceleration of the vehicle; anda control mechanism to actuate either the downward force or the upward force to counter the sensed acceleration of the vehicle.