Innovative Systems for Reduction of Rotorcraft Hub Drag

Award Information
Agency:
Department of Defense
Branch
Army
Amount:
$70,000.00
Award Year:
2008
Program:
SBIR
Phase:
Phase I
Contract:
W911W6-09-C-0014
Award Id:
87093
Agency Tracking Number:
A082-021-0570
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
PIASECKI AIRCRAFT CORP. (Currently Piasecki Aircraft Corporation)
519 West Second Street, P.O. Box 360, Essington, PA, 19029
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
002266609
Principal Investigator:
Frederick Piasecki
Vice President of Technology
(610) 521-5700
piasecki_fw@piasecki.com
Business Contact:
John Piasecki
President & CEO
(610) 521-5700
piasecki_jw@piasecki.com
Research Institution:
n/a
Abstract
This technology program investigates methods to reduce the aerodynamic drag of the helicopter rotor hub and blade shanks, including investigation of the hub/pylon relationship and its contribution to the flat plate drag of the hub. Examination of both active and passive technologies which can be applied is an integral part of the study effort. The H-60 is selected as the baseline air vehicle for the study. A baseline weight and drag level will be established and a set of design criteria developed to ensure that the drag reduction approach will not compromise the basic mission capability and maintainability of the aircraft. A detailed geometric model of the hub and shank areas will be developed, and a multi-case CFD analysis of both the baseline and advanced hub designs will be conducted. A study matrix that cycles each design ap-proach through varying dynamic pressure levels, angles of attack, and separation points will be con-ducted, leading to the selection of alternative solutions for a final recommendation for the technology initiative to be pursued in Phase II. During the Option Phase, planning for Phase II full-scale fabrication and testing of the reconfigured hub will be conducted.

* information listed above is at the time of submission.

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