SolarSailReqMatrix00Jan18

SolarSailReqMatrix00Jan18 - Solar Sail Mission Requirements...

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Unformatted text preview: Solar Sail Mission Requirements Final Report Prepared for Charles Garner Jet Propulsion Laboratory 4800 Oak Grove Drive Pasadena, CA 91109-8099 USA by Dr. Robert L. Forward Forward Unlimited 8114 Pebble Court Phone and Fax: +1-360-579-1340 12 January 2000 JPL Purchase Order No. 1208842 Clinton, WA 98236-9240 USA Email: <forward@whidbey.com> Solar Sail Mission Requirements This report consists of a set of one-page sheets, each documenting one of a large number of solar sail missions and the requirements those missions place on the sail materials, design, structure, and operations needed to carry out the planned mission. Some sheets contain data for two or more similar sails, usually differing only in area. The matrix format and the units used in the matrix have been kept the same on all sheets so that comparisons can be made between the sail requirements posed by each mission. The matrix sheets have no formal order, but an attempt has been made to group similar missions near each other. The major contributors to this report were Prof. Colin McInnes of the University of Glasgow, Benjamin Diedrich, now a graduate student at the University of Washington, and Dr. Robert L. Forward of Forward Unlimited. An electronic version of this report can be obtained by contacting Dr. Robert L. Forward at <forward@whidbey.com> . A paper copy of this report can be obtained by writing, emailing, calling, or faxing Dr. Forward at the contact points given on the cover. Sail or Mission Name: Sail and Mission Description: References: Sail Grand Unified Requirements Sail Configuration Sail Dimensions m 300,000 1000,000 Sail Area Sail Film Thickness μm Not Applicable (perforated aluminum film) Sail & Structure Mass kg 7,000,000 78,500,000 0.1 0.1 S/C+Payload Mass kg 3,500,000 3,500,000 Total Mass kg 10,500,000 82,000,000 0.15 0.104 Acceleration in laser beam Launch Mass kg Fabricated in space from space resources Storage Volume Fabricated in space from space resources Launch Vehicle Trip Time years 42 (one way) °C Other Environmental 2% loss of sail area due to dust impacts Spin Rate Front Optical Reflect. Front Optical Absorb. Upper Stage Maneuvers Trajectory Maneuvers Science Maneuvers Laser Power Robert L. Forward 31 July 1999 Human Exploration of Barnard Star System (lifelong mission) Two-stage sail, 300 km dia. sail inside 1000 km dia ring sail m 2 7.00x10 10 7.85x10 11 Sail Areal Density g/m 2 Total Areal Density g/m 2 mm/s 2 1.0 (decel) 0.1 (accel) m 3 300 km dia 100 km dia Fresnel Zone lens formed laser beam Sail Temp Max/Min TBD (high) deg/s TBD (slow) Front IR Emissivity Back IR Emissivity Station Keeping Man’vrs Separate inner sail from outer ring sail and rotate 180 deg TW 1500 (green) 1300 (IR) (Could be increased for shorter trip) Preparer and Date: 1000 km diameter laser-pushed lightsail with inner deceleration stage sail 300 km in diameter, for human exploration...
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This note was uploaded on 02/24/2011 for the course AERO 520 taught by Professor Rs during the Spring '11 term at Istanbul Technical University.

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SolarSailReqMatrix00Jan18 - Solar Sail Mission Requirements...

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