JOINED WING AIRCRAFT

Award Information
Agency: National Aeronautics and Space Administration
Branch: N/A
Contract: N/A
Agency Tracking Number: 585
Amount: $679,912.00
Phase: Phase II
Program: SBIR
Awards Year: 1984
Solicitation Year: N/A
Solicitation Topic Code: N/A
Solicitation Number: N/A
Small Business Information
Aca Industries Inc.
28603 Trailriders Drive, Rancho Palo Verde, CA, 90274
DUNS: N/A
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Julian Wolkovitch
 () -
Business Contact
Phone: () -
Research Institution
N/A
Abstract
THE JOINED WING IS A NEW TYPE OF AIRCRAFT CONFIGURATION WHICH EMPLOYS TANDEM WINGS ARRANGED TO FORM DIAMOND SHAPES IN BOTH PLAN AND FRONT VIEWS. WIND TUNNEL TESTS AND FINITE- ELEMENT STRUCTURAL ANALYSES SHOW THAT THE JOINED WING PROVIDES THE FOLLOWING ADVANTAGES OVER A COMPARABLE CONVENTIONAL WING: LIGHTER WEIGHT AND HIGHER STIFFNESS, LESSINDUCED DRAG, LOWER WAVE DRAG, HIGHER TRIMMED MAXIMUM LIFT COEFFICIENT, PLUSBUILT-IN DIRECT LIFT AND SIDEFORCE CAPABILITY. THE PHASE I WORK ADDRESSES THE FEASABILTY OF TESTING A MANNED, LOW-COST, JOINED WING RESEARCH AIRCRAFT OF APPROXIAMATELY 32 FT SPAN TO BE CONSTRUCTED DURING PHASE II AND TESTED IN FLIGHT AND IN NASA WIND TUNNELS. SEVERAL CANDIDATE VEHICLES ARES STUDIED, INCLUDING ONE EMPLOYING A FUSELAGE IDENTICAL TO THAT OF THE AD-1 OBLIQUE WING RESEARCH AIRCRAFT.

* information listed above is at the time of submission.

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