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Tubular Extendible Lock-Out Composite Boom (STELOC

Award Information

National Aeronautics and Space Administration
Award ID:
Program Year/Program:
2013 / SBIR
Agency Tracking Number:
Solicitation Year:
Solicitation Topic Code:
Solicitation Number:
Small Business Information
Composite Technology Development, Inc.
2600 Campus Drive Suite D Lafayette, CO 80026-3359
View profile »
Woman-Owned: Yes
Minority-Owned: No
HUBZone-Owned: No
Phase 1
Fiscal Year: 2013
Title: Tubular Extendible Lock-Out Composite Boom (STELOC
Agency: NASA
Contract: NNX13CL31P
Award Amount: $124,986.00


Mass and volume efficient solar arrays are sought by NASA, DoD and commercial space to enable high power missions from 20-30 kW up to 300 kW. Flexible substrate arrays can have higher specific power (W/kg) and specific volume (kW/m3) than conventional arrays. Typical designs for flexible substrate arrays require a stiff boom mechanism to deploy the array and provide the deployed structure. Graphite composite slit-tube booms are thermally stable and can enable next-generation flexible arrays by improving mass, volume, and cost. CTD has developed and demonstrated a 5cm diameter graphite composite slit-tube boom and canister designed for a 23m tether-stiffened solar array. The Stable Tubular Extendible Lock-Out Composite (STELOC) boom proposed here will feature two innovations to the composite slit-tube design that enhance stiffness. Slit-Lock interlocks the edges of the slit and Root-Lock eliminates the open section at the root of the boom when fully deployed. Combined, these innovations enable a 10cm STELOC boom that is much simpler, lighter, and stiffer than a 25cm diameter coilable longeron boom. This Phase I program will demonstrate a full length, 10cm STELOC boom including all innovative features to enhance stiffness. The program will also develop a conceptual design that meets all boom requirements provided by an identified spacecraft prime contractor for their flexible substrate array.

Principal Investigator:

Robert Taylor
VP of Technology

Business Contact:

Lori Bass
VP of Finance
Small Business Information at Submission:

Composite Technology Development, Inc.
CO Lafayette, CO 80026-3359

EIN/Tax ID: 841086947
Number of Employees:
Woman-Owned: Yes
Minority-Owned: No
HUBZone-Owned: No