3 edition of Full-scale semispan tests of a business-jet wing with a natural laminar flow airfoil found in the catalog.
Full-scale semispan tests of a business-jet wing with a natural laminar flow airfoil
Published
1991
by National Aeronautics and Space Administration, Office of Management, Scientific and Technical Information Program, For sale by the National Technical Information Service in [Washington, D.C.], Springfield, Va
.
Written in English
Edition Notes
| Statement | David E. Hahne and Frank L. Jordan, Jr. |
| Series | NASA technical paper -- 3133. |
| Contributions | Jordan, Frank L., United States. National Aeronautics and Space Administration. Scientific and Technical Information Program., Langley Research Center. |
| The Physical Object | |
|---|---|
| Format | Microform |
| Pagination | 48 p. |
| Number of Pages | 48 |
| ID Numbers | |
| Open Library | OL16135229M |
as well as full-scale flight testing using a gloved T aircraft (Fig. CS, Full-scale flight testing validated the performance of the airfoil at full-scale Reynolds number and Mach number. The laminar-to-turbulent boundary-layer transitions were visualized in real time using an infrared (IR) camera during the T flight tests (Fig. CS). The B bomber's "Davis" airfoil was also a laminar flow airfoil, which predates the Mustang's. However, the designers of the B only knew that their airfoil had very low drag in the wind tunnel. They did not know that it was a laminar flow airfoil. The boundary layer concept is credited to the great German aerodynamicist, Ludwig Prandtl.
Laminar-flow wings, such as the newly unveiled prototypes, have thinner leading edges than conventional aerofoils. The design could reduce wing friction by half and overall aircraft drag by 8% over a short range, Airbus said, saving up to 5% on fuel costs over a flight of almost 1,km. For the aircraft with lb has a wing area S= ft sq and the value of CL= at L/Dmax, find the sea level airspeed where the minimum drag occurs. V= knots For the aircraft with lb, find Di, Dp, Dt at (L/D)max.
› Image: Laminar Flow Wind Tunnel Test If successful, this technology will help to maintain laminar flow over most of a wing's surface and significantly reduce drag. This technology could be applied to a new wing design for either the traditional tube-and-wing aircraft or for a BWB. Our airplane is a Gulfstream III business jet, so it. An airfoil (American English) or aerofoil (British English) is the cross-sectional shape of a wing, blade (of a propeller, rotor, or turbine), or sail (as seen in cross-section). An airfoil-shaped body moving through a fluid produces an aerodynamic force.
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By Foot Tunnel on a full-scale semispan model to evaluate and document the low-speed, high-lift characteristics of a business-jet class wing that uti-lized the HSNLF(1) airfoil section and a single-slotted flap system.
In addition to the high-lift studies, boundary-layer transition effects were exam-File Size: 2MB. Full-scale semispan tests of a business-jet wing with a natural laminar flow airfoil. Full-scale semispan tests of a business-jet wing with a natural laminar flow airfoil [microform] / David E. Hahne and Frank L.
Jordan, Jr National Aeronautics and Space Administration, Office of Management, Scientific and Technical Information Program ; For sale by the National Technical Information Service [Washington, D.C. Full-scale semispan tests of a business-jet wing with a natural laminar flow airfoil /.
A full-scale semispan model was investigated to evaluate and document the low-speed, high-lift characteristics of a business-jet class wing that utilized the HSNLF(1) airfoil section and a single-slotted flap : David E.
Hahne and Jr. Frank L. Jordan. Full-scale semispan tests of a business-jet wing with a natural laminar flow airfoil / (Washington, D.C.: National Aeronautics and Space Administration, Office of Management, Scientific and Technical Information Program ; Springfield, Va.
Natural-Laminar-Flow Airfoil Development for a Lightweight Business Jet | Michimasa Fujino, Yuichi Yoshizaki, Yuichi Kawamura | download | B–OK. Download books for free. Find books. A flight-test campaign of a supersonic natural laminar flow airfoil has been recently completed.
The test surface was an inch ( cm) chord and inch ( cm) span article mounted on the centerline store location of an FB airplane (McDonnell Douglas Corporation, now The Boeing Company, Chicago, Illinois).File Size: 4MB. The airfoil thickness is 15% chord, as desired.
The airfoil coordinates are given in Table 1. A comparison between the section characteristics of the NASA NLF(1) airfoil and those of the NACA airfoil at the cruise-flight Reynolds number is presented in Size: KB.
(bacnlf-il) BOEING HSNLF AIRFOIL Boeing high speed natural laminar flow airfoil from a European patent (EP A1) Max thickness % at % chord.
Max camber % at % chord Source UIUC Airfoil Coordinates Database Source dat file The dat file is in Lednicer format: BOEING HSNLF AIRFOIL Full text of "Wind-tunnel investigation of a full-scale general aviation airplane equipped with an advanced natural laminar flow wing" See other formats NASA Technical Paper rWNSA National Aeronautics and Space Administration Scientific and Technical Information Division Wind-Tunnel Investigation of a Full- Scale General Aviation Airplane Equipped With an Advanced Natural Laminar.
A full-scale semispan model was investigated to evaluate and document the low-speed, high-lift characteristics of a business-jet class wing that utilized the HSNLF(1) airfoil. Full-scale semispan tests of a business-jet wing with a natural laminar flow airfoil by: Hahne, David E.
Published: () A computer program for estimating the areodynamic characteristics of NACA series airfoils by: Maksymiuk, Catherine M. Published: (). An NLF airfoil, the SHM-1, for a lightweight business jet was developed.
The airfoil exhibits a high maximum lift coef” cient, low pro” le drag coef” cients at climb and cruise, and a small nose- down pitching moment coef” cient at high Size: KB. Mr. Thorpe summed it up quite nicely. The biggest detraction is that the laminar airfoil detaches the flow easier and quicker, thus its gradient between flying one moment and ungracefully wingrocking to earth on another is quite steep compared to a dirty wing.
Full text of "Natural laminar flow experiments on modern airplane surfaces" See other formats. thicknessof14%,4)laminar‘owtoatleastconbothsurfaces withinth elow-dragrang(dragbucket),5)lowe rcorneofthelow- dragrangeata C l of,6) C m inth elow-dragrangnotless.
A selection has been made of NASA documents that will be useful for light and general aircraft. We are providing these to our users as a useful reference source. Munk, Max M.; and Miller, Elton W.: Model Tests with a Systematic Series of 27 Wing Sections at Full Reynolds Number. NACA Rep.Design and Experimental Results for a Natural-Laminar-Flow Airfoil for General Aviation Applications.
NASA TP, Somers D.M. () Subsonic Natural-Laminar-Flow Airfoils. In: Barnwell R.W Cited by: Natural laminar flow airfoil design considerations for winglets on low-speed airplanes (NASA contractor report) [Van Dam, C. P] on *FREE* shipping on qualifying offers.
Natural laminar flow airfoil design considerations for winglets on Author: C. P Van Dam. The clean-sheet aircraft was created to provide the customer the best value and experience by utilizing advanced technologies, including the aeronautic breakthrough over-the-wing engine mount (OTWEM), a newly developed natural laminar flow (NLF) wing and fuselage nose and a composite fuselage.The two-element, slotted, natural-laminar-flow (SNLF) airfoil concept is a passive, NLF concept aimed at achieving a high maximum lift coefficient and extensive laminar flow in cruise [1].
The aft element allows favorable pressure gradients over the entire fore element, which results in percent-chord laminar flow on that element,File Size: 1MB.Natural laminar flow (NLF) is clearly one of the most potentially attractive drag reduction technologies by virtue of its relative simplicity.
NLF is achieved passively, that is, Cited by: 6.
