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Very Low Noise, High Efficiency Propeller Designs for Small UAVs

Award Information

Department of Defense
Award ID:
Program Year/Program:
2002 / SBIR
Agency Tracking Number:
Solicitation Year:
Solicitation Topic Code:
Solicitation Number:
Small Business Information
Delta Group International Llc
15235 Diamondhead Court, Suite 202 Colorado Springs, CO -
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Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
Phase 1
Fiscal Year: 2002
Title: Very Low Noise, High Efficiency Propeller Designs for Small UAVs
Agency / Branch: DOD / NAVY
Contract: N00178-02-C-3080
Award Amount: $69,941.00


"The objectives of this Phase I SBIR are to design, fabricate, test, and evaluate low noise, highly efficient propellers at two different airspeeds over a range of propeller rpm. The noise and performance results will be compared with the best (chosen apriori) commercially available two-bladed propeller. The quiet, highly efficient propeller will be designed to maintain optimum propulsive efficiency while still meeting the low noise objectives. This Phase I program uses a combinedtheoretical-experimental approach with an emphasis on producing propeller designs that meet noise and performance goals with less emphasis on mass production design and manufacturing. Design variables such as propeller diameter, blade number, blade shape,etc., will be systematically analyzed to achieve program objectives. A novel hub/blade design will facilitate parametric testing so that theory can be validated early and often. Manufacturing techniques are developed to produce five propellers of thesame design for testing by the Navy at the end of Phase I. In the later stages of the program (Phases II and III), new designs will be proposed that further reduce noise levels while maintaining good performance. Mass production methods will be employedto produce propellers that are durable and consistently perform as designed. The realization of a very quiet, highly efficient, safe, cost-effective propeller for small UAVs will be welcomed by DoD, other go

Principal Investigator:

Ben Wel-C. Sim
Principal Investigator

Business Contact:

William T. Eckert
Small Business Information at Submission:

Delta Group International Llc
1049 Tari Drive, Suite B Colorado Springs, CO 80921

EIN/Tax ID: 841564931
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No