
(Expanded shape)
The Philips Bolo YoYo Space Habitat is developed for long term travel and human occupation of the solar system.
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The design provides:
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An Earth normal gravity environment
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Effective interplanetary travel
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LEO construction time of less than a month
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As little as four launches to build
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Significantly reduced infrastructure and launch costs/time compared to the ISS, or a von Braun torus, (years vs decades, one billion vs five-hundred billion dollars), or an O'Neill cylinder (Impossible to build within the world's current economic capacity).
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The design consists of:
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A system designed to change shape from an interplanetary traveler to an Earth normal gravity habitat as follows:
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A cubic truss assembled in orbit, open to vacuum, capable of carrying stores (YoYo core)
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Two or more earth launched vehicles containing one or more cabins (Bolo habitats)
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A robust "spool" anchored within the YoYo truss, capable of extruding and retrieving cable sets attached to the Bolo habitats

Bolo YoYo habitat side view
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In the retracted configuration
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With multiple rockets surrounding a truss core
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Capable of acceleration to planetary velocities

Philips Bolo YoYo habitat expanded configuration side view​
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Capable of providing one gravity of force within the habitable cabins
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Gravity is simulated during planetary coasting or stable orbits
The Philips Bolo YoYo Space Habitat is developed for long term travel and human occupation of the solar system.
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The construction sequence is as follows:
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Launch of two (or more) space ships with cabins designed for both zero and normal gravity
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Launch of a third vehicle containing lineal pipe struts to construct a simple and strong rectangular or cubic truss surrounding a robust linchpin spool for cables
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The truss is assembled, the two or more spaceships are mated to the truss and attached by cables to the robust spool
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Launch of further vehicles as necessary for outfitting and fueling of the initial spaceships
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The deployment is as follows:
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All of the spaceships attached to the YoYo Truss fire main rockets in coordination to achieve velocity to transit to new orbit.
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When transit velocity is achieved and the unit is in coasting relative to each other, the spaceships use thrusters to deploy away from the YoYo truss slowly until at the end of each tether.
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Then, in coordination, the space ships apply a lateral thrust equally around the center spool, balanced by weight and distance, causing the system to rotate, the cables being equally taut.
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To prevent wobble, the system will require significant computer control, and to bring the Bolo YoYo into perfect balance will likely require a ballast control system capable of pumping fluid mass between the ships.
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This creates a simulated gravity in each habitat.
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When approaching the mission destination, the process would be reversed to allow for deceleration and any maneuvering necessary.
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The Bolos could be redeployed when on station.
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