Active Momentum Control Coatings for Solar Sails

Award Information
Agency:
National Aeronautics and Space Administration
Branch
n/a
Amount:
$69,999.00
Award Year:
2001
Program:
SBIR
Phase:
Phase I
Contract:
n/a
Award Id:
51765
Agency Tracking Number:
NASA1654
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
111 Downey Street, Norwood, MA, 02062
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
Stuart Cogan
Head of Materials Science
(781) 769-9450
scogan@eiclabs.com
Business Contact:
R. David Rauh
President
(781) 769-9450
drauh@eiclabs.com
Research Institution:
n/a
Abstract
The development of thin-film coatings with an actively tunable solar reflectance is proposed for momentum control on solar sails. As currently conceived, maneuvering and attitude control on solar sail spacecraft is achieved by mechanically adjusting the angle of one or more solar sails or panels with respect to the solar flux to create torque. The maneuvering and propulsion force is obtained from the solar radiation pressure with the realizable force depending on the spectral reflectance and absorption of the sail and its angle with respect to the flux. The proposed coatings offer a non-mechanical, low weight alternative to currently anticipated methods of maneuvering and attitude control. The coatings are applied to a limited area of the solar sail in a location that maximizes the torque on the spacecraft. In Phase I, the materials and design for the coating will be developed with emphasis on performance and stability on thin, flexible polymer sheet suitable for solar sail construction. Functioning, small-area (25 cm2) samples will be fabricated to demonstrate performance. In Phase II, the coatings will be optimized, scaled to larger areas, and integrated into a prototype solar sail and subjected to extensive testing for space environment stability.

* information listed above is at the time of submission.

Agency Micro-sites


SBA logo

Department of Agriculture logo

Department of Commerce logo

Department of Defense logo

Department of Education logo

Department of Energy logo

Department of Health and Human Services logo

Department of Homeland Security logo

Department of Transportation logo

Enviromental Protection Agency logo

National Aeronautics and Space Administration logo

National Science Foundation logo
US Flag An Official Website of the United States Government