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<tr><td valign=top><img style="margin-top:4px;" src=/images/a.gif></td><td></td><td> <b>NACA</b> ducts are useful when air needs to be drawn into an area which isn't exposed to the direct air flow the scoop has access to. </td></tr>
<tr><td valign=top><img style="margin-top:4px;" src=/images/a.gif></td><td></td><td> The <b>NACA</b> duct takes advantage of the Boundary layer, a layer of slow moving air that "clings" to the bodywork of the car, especially where the bodywork flattens, or does not accelerate or decelerate the air flow. </td></tr>
<tr><td valign=top><img style="margin-top:4px;" src=/images/a.gif></td><td></td><td> Anyway, the <b>NACA</b> duct scavenges this slower moving area by means of a specially shaped intake.</td></tr>
<tr><td></td><td colspan=2><font color=gray>www.stockcarproducts.com /naca.htm</font> (193 words)</td></tr>
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<tr><td> </td><td colspan=2><u>Dictionary : NACA</u> <i>(Site not responding. Last check: 2007-11-07)</i></td></tr>
<tr><td valign=top><img style="margin-top:4px;" src=/images/a.gif></td><td></td><td> The National Advisory Committee for Aeronautics (<b>NACA</b>) was a government body created in 1915 by President Woodrow Wilson. </td></tr>
<tr><td valign=top><img style="margin-top:4px;" src=/images/a.gif></td><td></td><td> Its mission was to "supervise and direct the scientific study of the problems of flight, with a view to their practical solutions." Its first research center was located in Langley, Virginia. </td></tr>
<tr><td valign=top><img style="margin-top:4px;" src=/images/a.gif></td><td></td><td> <b>NACA</b> built several wind tunnels that were used to support its research on airfoils and other aerodynamic components.</td></tr>
<tr><td></td><td colspan=2><font color=gray>www.centennialofflight.gov /essay/Dictionary/NACA/DI100.htm</font> (118 words)</td></tr>
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<tr><td> </td><td colspan=2><a href="http://www.airliners.net/discussions/tech_ops/print.main?id=62465">Airliners.net forum: Naca Inlets</a></td></tr>
<tr><td valign=top><img style="margin-top:4px;" src=/images/a.gif></td><td></td><td> <b>NACA</b> inlets or <b>NACA</b> ducts (as seen under the wing), are well formed as they will not allow ice to form on their surface. </td></tr>
<tr><td valign=top><img style="margin-top:4px;" src=/images/a.gif></td><td></td><td> <b>Naca</b> inlets were in fact used as engine intakes on the North American YF-93A,initially called the F-86C.Two were built but a production order for 118 F-93A's was cancelled.One of the two built was used by <b>NACA</b> at Moffat field until 1956. </td></tr>
<tr><td valign=top><img style="margin-top:4px;" src=/images/a.gif></td><td></td><td> <b>NACA</b> inlets are best for low-drag air intakes where the flux through the inlet is relatively small compared to the flux over the whole surrounding surface.</td></tr>
<tr><td></td><td colspan=2><font color=gray>www.airliners.net /discussions/tech_ops/print.main?id=62465</font> (1001 words)</td></tr>
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<tr><td> </td><td colspan=2><u>Texas VFR Garage</u> <i>(Site not responding. Last check: 2007-11-07)</i></td></tr>
<tr><td valign=top><img style="margin-top:4px;" src=/images/a.gif></td><td></td><td> His response to the meaning of <b>NACA</b> answers a question that seems to be asked often about the VFR ducts. </td></tr>
<tr><td valign=top><img style="margin-top:4px;" src=/images/a.gif></td><td></td><td> <b>NACA</b> stands for "National Advisory Committee for Aeronautics" and is one of the predecessors of NASA. </td></tr>
<tr><td valign=top><img style="margin-top:4px;" src=/images/a.gif></td><td></td><td> As to the <b>NACA</b> duct, I'm trying to say this without sounding professional, but here it is in case you're interested.</td></tr>
<tr><td></td><td colspan=2><font color=gray>www.yft.org /tex_vfr/tech/naca.htm</font> (253 words)</td></tr>
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<tr><td> </td><td colspan=2><u>NACA - NATIONAL ASSOCIATION OF CHINESE-AMERICANS</u> <i>(Site not responding. Last check: 2007-11-07)</i></td></tr>
<tr><td valign=top><img style="margin-top:4px;" src=/images/a.gif></td><td></td><td> The National Association of Chinese-Americans (<b>NACA</b>) is dedicated to the advancement of cordial relationships between the United States and China. </td></tr>
<tr><td valign=top><img style="margin-top:4px;" src=/images/a.gif></td><td></td><td> The Atlanta Chapter of <b>NACA</b> has continued to organize and sponsor activities that bring together Chinese dignitaries, local Georgia government officials as well as community and business leaders. </td></tr>
<tr><td valign=top><img style="margin-top:4px;" src=/images/a.gif></td><td></td><td> <b>NACA's</b> mission has been as a facilitator to promote cultural, educational, scientific and business relationships between these parties.</td></tr>
<tr><td></td><td colspan=2><font color=gray>www.naca-atlanta.org /index.cfm</font> (196 words)</td></tr>
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<tr><td> </td><td colspan=2><a href="http://history.nasa.gov/SP-4219/Chapter1.html">Engineering Science and the Development of the NACA Low-Drag Engine Cowling</a></td></tr>
<tr><td valign=top><img style="margin-top:4px;" src=/images/a.gif></td><td></td><td> Hunsaker (a future <b>NACA</b> chairman, 1941-1956) and Captain George C. Westervelt, Richardson was one of the designers of the Navy's famous NC-4 (NC for Navy Curtiss) flying boats, a 25,000-pound aircraft that successfully flew the Atlantic in 1919. </td></tr>
<tr><td valign=top><img style="margin-top:4px;" src=/images/a.gif></td><td></td><td> <b>NACA's</b> Washington office announced to the press that aircraft manufacturers could install the <b>NACA's</b> low-drag cowling as an airplane's standard equipment for about $25 and that the possible annual savings from industry's use of the invention was in excess of $5 million-more than the total of all <b>NACA</b> appropriations through 1928. </td></tr>
<tr><td valign=top><img style="margin-top:4px;" src=/images/a.gif></td><td></td><td> This is what the <b>NACA</b> could have said, and perhaps should have said, to the aviation public rather than leave most people with the impression that a magical piece of equipment had been invented and that science was responsible for it.</td></tr>
<tr><td></td><td colspan=2><font color=gray>history.nasa.gov /SP-4219/Chapter1.html</font> (11926 words)</td></tr>
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<tr><td> </td><td colspan=2><u>The Council - National Advisory Council on Aging</u> <i>(Site not responding. Last check: 2007-11-07)</i></td></tr>
<tr><td valign=top><img style="margin-top:4px;" src=/images/a.gif></td><td></td><td> The National Advisory Council on Aging was created on May 1, 1980, to assist and advise the Minister of Health on all matters related to the aging of the Canadian population and the quality of life of seniors. </td></tr>
<tr><td valign=top><img style="margin-top:4px;" src=/images/a.gif></td><td></td><td> In two years alone, <b>NACA</b> worked on some 60 topics, including income security, seniors' health, housing, women's life-course events, the very old senior, the aging labour force, continuing education, gerontology training, geriatric assessment and elder abuse. </td></tr>
<tr><td valign=top><img style="margin-top:4px;" src=/images/a.gif></td><td></td><td> <b>NACA</b> publishes a variety of documents to reach a variety of audiences and to answer specific needs.</td></tr>
<tr><td></td><td colspan=2><font color=gray>www.naca-ccnta.ca /council_e.htm</font> (1368 words)</td></tr>
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<tr><td> </td><td colspan=2><a href="http://www.wisil.recumbents.com/wisil/nacaduct/naca-duct.htm">NACA design specs</a></td></tr>
<tr><td valign=top><img style="margin-top:4px;" src=/images/a.gif></td><td></td><td> I decided to try a <b>NACA</b> duct, which is designed to be low drag, and to place it just in front of the canopy, where a high pressure zone is likely to build. </td></tr>
<tr><td valign=top><img style="margin-top:4px;" src=/images/a.gif></td><td></td><td> After wading through a bunch of documents and drawings on the <b>NACA</b> web site, I determined that an optimum <b>NACA</b> submerged inlet duct design should employ curved diverging ramp walls with a width to depth ratio between 3 and 5, and a ramp angle of between 5 and 7 degrees. </td></tr>
<tr><td valign=top><img style="margin-top:4px;" src=/images/a.gif></td><td></td><td> The entrance lip at the rear of the duct should be a blunt airfoil leading edge shape; however, the edge formed by the duct and the surface elsewhere should remain crisp.</td></tr>
<tr><td></td><td colspan=2><font color=gray>www.wisil.recumbents.com /wisil/nacaduct/naca-duct.htm</font> (1065 words)</td></tr>
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<tr><td> </td><td colspan=2><a href="http://www.naca.net">Welcome to the NACA Web site</a></td></tr>
<tr><td valign=top><img style="margin-top:4px;" src=/images/a.gif></td><td></td><td> The National Association of Consumer Advocates (<b>NACA</b>) is a nationwide organization of more than 1000 attorneys who represent and have represented hundreds of thousands of consumers victimized by fraudulent, abusive and predatory business practices. </td></tr>
<tr><td valign=top><img style="margin-top:4px;" src=/images/a.gif></td><td></td><td> As an organization fully committed to promoting justice for consumers, <b>NACA's</b> members and their clients are actively engaged in promoting a fair and open marketplace that forcefully protects the rights of consumers, particularly those of modest means. </td></tr>
<tr><td valign=top><img style="margin-top:4px;" src=/images/a.gif></td><td></td><td> In 2005, <b>NACA</b> will be focused on promoting an agenda that lays the groundwork for rebuilding a consumer justice system that will be based on our nation's fundamental sense of fairness, equity and honesty.</td></tr>
<tr><td></td><td colspan=2><font color=gray>www.naca.net</font> (279 words)</td></tr>
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<tr><td> </td><td colspan=2><a href="http://www.aerospaceweb.org/question/airfoils/q0173.shtml">Aerospaceweb.org | Ask Us - German Modifications to NACA Airfoils</a></td></tr>
<tr><td valign=top><img style="margin-top:4px;" src=/images/a.gif></td><td></td><td> The first digit specifies the maximum camber in percentage of the chord (airfoil length), the second indicates the position of the maximum camber in tenths of chord, and the last two numbers provide the maximum thickness of the airfoil in percentage of chord. </td></tr>
<tr><td valign=top><img style="margin-top:4px;" src=/images/a.gif></td><td></td><td> For example, the <b>NACA</b> 0008-1.1-25 is thickest 25% back from the leading edge while the <b>NACA</b> 0005-.825-50 reaches maximum thickness halfway (50%) along its length. </td></tr>
<tr><td valign=top><img style="margin-top:4px;" src=/images/a.gif></td><td></td><td> There are a number of programs to generate <b>NACA</b> airfoil coordinates available on the web, but none appear to be capable of handling the variables described by the German modification system.</td></tr>
<tr><td></td><td colspan=2><font color=gray>www.aerospaceweb.org /question/airfoils/q0173.shtml</font> (957 words)</td></tr>
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<tr><td> </td><td colspan=2><a href="http://www.boat-links.com/foilfaq.html">Foil FAQ</a></td></tr>
<tr><td valign=top><img style="margin-top:4px;" src=/images/a.gif></td><td></td><td> The basic <b>NACA</b> section profiles are "symmetrical" so they are good for rudders, especially, but also leeboards, daggerboards and centerboards. </td></tr>
<tr><td valign=top><img style="margin-top:4px;" src=/images/a.gif></td><td></td><td> The thickness of a <b>NACA</b> section depends entirely on the chord of your board. </td></tr>
<tr><td valign=top><img style="margin-top:4px;" src=/images/a.gif></td><td></td><td> (5) The thickness of a <b>NACA</b> foil is always greatest at 30% of the chord from the nose.</td></tr>
<tr><td></td><td colspan=2><font color=gray>www.boat-links.com /foilfaq.html</font> (1181 words)</td></tr>
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<tr><td> </td><td colspan=2><a href="http://naca-nokomis.com">NACA, Nokomis Area Civic Association, Nokomis, Florida</a></td></tr>
<tr><td valign=top><img style="margin-top:4px;" src=/images/a.gif></td><td></td><td> The Nokomis Area Civic Association (<b>NACA</b>) is a collection of resident volunteers representing 39 Nokomis homeowner associations and unincorporated Nokomis areas for the purpose of promoting the general welfare and quality of life in Nokomis and Sarasota County. </td></tr>
<tr><td valign=top><img style="margin-top:4px;" src=/images/a.gif></td><td></td><td> Representatives from the Florida Department of Transportation (FDOT) are joined by the engineering firm supervising the widening project, the road and bridge design engineering firm and the construction company to comprise a panel of experts for a community meeting. </td></tr>
<tr><td valign=top><img style="margin-top:4px;" src=/images/a.gif></td><td></td><td> <b>NACA</b> Board Members Pictured With Chairman of the Sarasota Board of County Commissioner - PAUL MERCIER, at the 2005 annual President's Roundtable meeting.</td></tr>
<tr><td></td><td colspan=2><font color=gray>naca-nokomis.com</font> (455 words)</td></tr>
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<tr><td> </td><td colspan=2><u>What's New - National Advisory Council on Aging</u> <i>(Site not responding. Last check: 2007-11-07)</i></td></tr>
<tr><td valign=top><img style="margin-top:4px;" src=/images/a.gif></td><td></td><td> The need for improvements is discussed in a statement to be released during the Canadian Association on Gerontology's meeting in Halifax, October 20-22nd. </td></tr>
<tr><td valign=top><img style="margin-top:4px;" src=/images/a.gif></td><td></td><td> In this issue of Expression, <b>NACA</b> looks at the principles and practices that underpin the operations of the best long-term care facilities, makes recommendations on choosing a long-term care establishment, and supports the improvements to long-term care recommended by the Canadian Healthcare Association. </td></tr>
<tr><td valign=top><img style="margin-top:4px;" src=/images/a.gif></td><td></td><td> In this report, <b>NACA</b> examines the shortcomings of Canada's retirement policies and income programs and makes 15 recommendations that include changes to income security programs, retirement savings plans and housing and long-term care costs for seniors.</td></tr>
<tr><td></td><td colspan=2><font color=gray>www.naca-ccnta.ca /naca_main_e.htm</font> (550 words)</td></tr>
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<tr><td> </td><td colspan=2><a href="http://www.users.bigpond.com/naca1">Home Page of the North Australian Canine Association</a></td></tr>
<tr><td valign=top><img style="margin-top:4px;" src=/images/a.gif></td><td></td><td> The <b>NACA</b> will be conducting a show on 4 February 2006 to celebrate the Chinese Year of the Dog - details are available on the schedule. </td></tr>
<tr><td valign=top><img style="margin-top:4px;" src=/images/a.gif></td><td></td><td> The <b>NACA</b> office will be closed for the Christmas break from Tuesday 27th December 2005 and will re-open on Tuesday 3rd January 2006. </td></tr>
<tr><td valign=top><img style="margin-top:4px;" src=/images/a.gif></td><td></td><td> All Ballot Papers for the <b>NACA</b> Annual General Meeting will be mailed after processing of Membership Renewals and the rollover of the updated Membership List has been completed.</td></tr>
<tr><td></td><td colspan=2><font color=gray>www.users.bigpond.com /naca1</font> (322 words)</td></tr>
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<tr><td> </td><td colspan=2><a href="http://www.main.org/naca">NACA the North Austin Civic Association</a></td></tr>
<tr><td valign=top><img style="margin-top:4px;" src=/images/a.gif></td><td></td><td> Because the area <b>NACA</b> serves is unusually large both in population and in geographic extent, it is divided into 5 areas, <b>NACA</b> #1-#5. </td></tr>
<tr><td valign=top><img style="margin-top:4px;" src=/images/a.gif></td><td></td><td> <b>NACA</b> is one of Austin's most vibrant and affordable areas, home to a diverse population of retirees, African-Americans, Hispanics, Vietnamese-Americans and recent immigrants from many different countries. </td></tr>
<tr><td valign=top><img style="margin-top:4px;" src=/images/a.gif></td><td></td><td> Text of the Agreement Between <b>NACA</b> and BFI negotiated among representatives of BFI, the City of Austin and your neighborhood association.</td></tr>
<tr><td></td><td colspan=2><font color=gray>www.main.org /naca</font> (390 words)</td></tr>
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<tr><td> </td><td colspan=2><a href="http://www.dfrc.nasa.gov/gallery/photo/X-5/chronology.html">X-5 Program NACA Flight Chronology, 1952-1955</a></td></tr>
<tr><td valign=top><img style="margin-top:4px;" src=/images/a.gif></td><td></td><td> The <b>NACA</b> High-Speed Flight Station operated the Bell X-5 #1 (50-1838) from 1952 to late 1955. </td></tr>
<tr><td valign=top><img style="margin-top:4px;" src=/images/a.gif></td><td></td><td> Following the conclusion of the contractors program in October 1951, the airplane was grounded for installation of a <b>NACA</b> instrument package. </td></tr>
<tr><td valign=top><img style="margin-top:4px;" src=/images/a.gif></td><td></td><td> The first <b>all-NACA</b> flight was flight 7, and it is with this flight that this chronology begins.</td></tr>
<tr><td></td><td colspan=2><font color=gray>www.dfrc.nasa.gov /gallery/photo/X-5/chronology.html</font> (270 words)</td></tr>
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<tr><td> </td><td colspan=2><u>Amazon.com: Testing Aircraft, Exploring Space: An Illustrated History of NACA and NASA: Books: Roger E. Bilstein</u> <i>(Site not responding. Last check: 2007-11-07)</i></td></tr>
<tr><td valign=top><img style="margin-top:4px;" src=/images/a.gif></td><td></td><td> The National Advisory Committee for Aeronautics (<b>NACA</b>) was established in 1915 in response to the rapid advancement in aeronautical technology in Europe and the need in the United States to duplicate and surpass that level of effort. </td></tr>
<tr><td valign=top><img style="margin-top:4px;" src=/images/a.gif></td><td></td><td> The <b>NACA</b> was transformed into the National Aeronautics and Space Administration 1958 in the aftermath of the Sputnik crisis, and given a mandate to undertake RandD in space technology in addition to its aeronautics component. </td></tr>
<tr><td valign=top><img style="margin-top:4px;" src=/images/a.gif></td><td></td><td> Testing Aircraft, Exploring Space is a profusely illustrated history of the <b>NACA</b> and NASA institutions, and their contributions to aviation and space exploration science, research, human exploration and much, much more.</td></tr>
<tr><td></td><td colspan=2><font color=gray>www.amazon.com /exec/obidos/tg/detail/-/0801871581?v=glance</font> (1094 words)</td></tr>
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<tr><td valign=top><img style="margin-top:4px;" src=/images/a.gif></td><td></td><td> Since product advertising is encouraged, the <b>"NACA</b> News" has become a resource of information for service and product reviews. </td></tr>
<tr><td valign=top><img style="margin-top:4px;" src=/images/a.gif></td><td></td><td> The <b>"NACA</b> News" has a circulation of over 4,800 per issue, and is distributed in eight countries. </td></tr>
<tr><td valign=top><img style="margin-top:4px;" src=/images/a.gif></td><td></td><td> Your company can become a member by submitting an application containing the name, address and telephone number of the company and name of your contact person along with a check or purchase order in the amount of $125.00 ($150.00 outside the U.S.).</td></tr>
<tr><td></td><td colspan=2><font color=gray>www.nacanet.org /nacanews.htm</font> (443 words)</td></tr>
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<tr><td> </td><td colspan=2><u>Tom Speer - Home -</u> <i>(Site not responding. Last check: 2007-11-07)</i></td></tr>
<tr><td valign=top><img style="margin-top:4px;" src=/images/a.gif></td><td></td><td> The main wing element of these airfoils was designed to a similar aerodynamic philosophy as the wingmast sections - providing for a smooth forward movement of the transition point as angle of attack increases, so as to have robust characteristics at low Reynolds numbers. </td></tr>
<tr><td valign=top><img style="margin-top:4px;" src=/images/a.gif></td><td></td><td> The <b>NACA</b> 0012 provides a good section for the flap because of its front loading, which allows the whole flap to be used for the airfoil's pressure recovery. </td></tr>
<tr><td valign=top><img style="margin-top:4px;" src=/images/a.gif></td><td></td><td> The <b>NACA</b> tested the 23012 airfoil with a 23012 airfoil as a 20% chord flap, and the data are compared here with the computational method.</td></tr>
<tr><td></td><td colspan=2><font color=gray>www.tspeer.com</font> (1262 words)</td></tr>
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<tr><td> </td><td colspan=2><a href="http://www.countyadministrators.org">National Association of County Administrators -- Welcome to the NACA Web site!</a></td></tr>
<tr><td valign=top><img style="margin-top:4px;" src=/images/a.gif></td><td></td><td> The National Association of County Administrators, <b>NACA</b>, is the professional association of county administrators. </td></tr>
<tr><td valign=top><img style="margin-top:4px;" src=/images/a.gif></td><td></td><td> <b>NACA</b> advances and encourages professional development for county administrators and strives to improve the management of county government. </td></tr>
<tr><td valign=top><img style="margin-top:4px;" src=/images/a.gif></td><td></td><td> <b>NACA</b> has scheduled several meetings, including an Idea Exchange, concurrent with the 2005 ICMA Annual Conference.</td></tr>
<tr><td></td><td colspan=2><font color=gray>www.countyadministrators.org</font> (203 words)</td></tr>
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<tr><td> </td><td colspan=2><u>NACA airfoils</u> <i>(Site not responding. Last check: 2007-11-07)</i></td></tr>
<tr><td valign=top><img style="margin-top:4px;" src=/images/a.gif></td><td></td><td> National Advisory Committee for Aeronautics (<b>NACA</b>) has its own WWW page (thanks to Michael L. Nelson, m.l.nelson@larc.nasa.gov). </td></tr>
<tr><td valign=top><img style="margin-top:4px;" src=/images/a.gif></td><td></td><td> The data is from <b>NACA</b> TR 824, the paper Abbott and Doehoff's book "Theory of Wing Sections" is based on. </td></tr>
<tr><td valign=top><img style="margin-top:4px;" src=/images/a.gif></td><td></td><td> For some reason known only to <b>NACA</b> for high values of Cl the corresponding value of Cd was ommitted.</td></tr>
<tr><td></td><td colspan=2><font color=gray>www-berkeley.ansys.com /cfd/naca.html</font> (1569 words)</td></tr>
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<tr><td> </td><td colspan=2><u>History of the NACA Airfoil Project</u> <i>(Site not responding. Last check: 2007-11-07)</i></td></tr>
<tr><td valign=top><img style="margin-top:4px;" src=/images/a.gif></td><td></td><td> The ordinates for numerous specific airfoils of these series at a coarse set of data points were published in a series of <b>NACA</b> reports. </td></tr>
<tr><td valign=top><img style="margin-top:4px;" src=/images/a.gif></td><td></td><td> However, when performing parametric studies on effects of such variables as thickness, location of maximum thickness, leading- edge radius, location of maximum camber and others, it is not always easy to obtain the ordinates of the desired shapes rapidly and accurately. </td></tr>
<tr><td valign=top><img style="margin-top:4px;" src=/images/a.gif></td><td></td><td> In December 1996, NASA published a new report outlining the theory behind the <b>NACA</b> airfoil sections and a revised computer program incorporating the features of both of the 1974-1975 programs.</td></tr>
<tr><td></td><td colspan=2><font color=gray>www.pdas.com /naca456history.htm</font> (350 words)</td></tr>
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