vv; yf. The effect of airfoil shape on lift. Analisis Aerodinamika. NACA 6409 NACA 6412 NACA 4 digit airfoil specification This NACA airfoil series is controlled by 4 digits e. I also tried to run airfoils which are used for human gliders at the tip of the wings, like Wortmann FX 60-126, but the results were the same; these airfoil seemed to offer advantage at higher speeds (30 m/s+), but not at 20. Next, the best place to look is among glider airfoils. Very popular among all modelers for some twenty years. Glider wings are very long and thin, which makes them efficient MultiSurface Aerodynamics is your personal desktop wind tunnel software for analyzing paragliders, parasails, kites and hang gliders 00. 7% chord. Obviously there are thousands of airfoils out there, so these are just examples of the types. It's a glider so it won't require high angle of attack, NACA 4 series more efficient, as well as other non NACA airfoils that look similar A glider also always stay in non critical subsonic air flow, so filter it that maximum chamber and thickness are in front. Towing Aloft: Learning to Surface - Tow & Aerotow Hang Gliders , Paragliders & Ultralight Sailplanes. Hang gliding, sport of flying in lightweight unpowered aircraft which can be carried by the pilot Crocco's Theorem Up: Two-Dimensional Compressible Inviscid Flow Previous: Shock-Expansion Theory Thin-Airfoil Theory The shock-expansion theory of the previous section provides a simple and general method for computing the lift and drag on a. MH60 For flying wings, MH60 is recommended, you can choose from its different variations which have different thicknesses. 7% chord. Do you want slowest gliding speed, shallowest glide . In the case of the JS-1 sailplane,. It is a pure flying wing, without any fin. NACA 4415 Look at the book of Abbot and von Doenhoff, there are plenty of profiles that can give the lift coefficient needed for low speeds, given you do the necessary calculations, Maybe the NACA 2412 is a initial bet. 39;Designing&39; the airfoil for an XPlane glider is not quite the same process as. In the RC glider scene, a fairly common airfoil to use for "built up" gliders (d box/rib) is the AG 36 airfoil. ) It features the SD7080 airfoil that was specially modified for this sailplane, the benefit of that are superb thermal abilities and very low stall speed. BETOOLL Glider Swing Brackets, Perfect for Play Set Horse Glider Swing Sets ,. Glider Performance Flaps 6, Airfoil LE 7219, Weight 240- 320 Wing Loading 11 Glider wings are very long and thin, which makes them efficient Therefore the best L/D speed is the same as the approach speed on the aircraft. ww; lb. thickness; 5: Camber; 6: Upper surface; 7: Trailing edge; 8: Camber mean-line; 9: Lower surface Profile lines – 1: Chord, 2: Camber, 3: Length, 4: Midline. Sep 22, 2018 · Another effective glider wing would be the one used by the F,R. What is the best airfoil design for a glider ? My gliders wing will be a12 inch airfoil with a wing span of about 50 inches. Another 3-5% is produced by down. A magnifying glass. The Wortmann FX 63-167 is now 55 years old but still a good start. comlex level 2 score percentile Best Airfoil for flying wing? macvidler: Flying Wings: 20: Nov 11, 2015 09:41 AM: Discussion: Help for find best airfoil: mohammad7024: The Builders Workshop: 32: Nov 09, 2015 06:07 AM: Discussion: Best Airfoil for light weight 60" glider?ForeverFlying: Modeling Science: 3: Dec 06, 2010 03:11 PM: best airfoil for a 1. It's a glider so it won't require high angle of attack, NACA 4 series more efficient, as well as other non NACA airfoils that look similar A glider also always stay in non critical subsonic air flow, so filter it that maximum chamber and thickness are in front. At the end of the. The lower side of the airfoil is at the three measured spanwise locations. 3% at 38. Other airfoils (like AG20-40) came way lower in the range of 25-28. What is the best NACA airfoil for the most lift? A: There is no single. the development of many excellent airfoils by Wortmann and Eppler. What this means is that you only have to sand on the top surface of the airfoil. While the performance of these models was quite good, the high start performance and handling qualities were very poor. 3% at 38. While comparing different airfoils I am looking for a high value of Cl^3/2/Cd to get as high endurance as possible and a high Cl/Cd ratio. (sd7037-il) SD7037-092-88. The effect of airfoil shape on lift. The airfoil has a thickness of 6. presumed pilot's skill level. (s7055-il) S7055 (10. The high performance airfoils are critical as to leading edge shape and trailing edge thickness. OLIMPOCICLI Air. The NACA airfoil series The early NACA airfoil series, the 4-digit, 5-digit, and modified 4-/5-digit, were generated using analytical equations that describe the camber (curvature) of the mean-line (geometric centerline) of the airfoil section as well as the section's thickness distribution along the length of the airfoil. This NACA airfoil series is controlled by 4 digits e. 5% at 31. What is the best NACA airfoil for the most lift? A: There is no single. uc fp. In other words, if you had to decide to spend 10 min-utes of your time between shaping an exact airfoil, or trim-ming the final glider for flight, you should always spend the The home of model gliding us debt clock Airfoil Glider For our annual homeschool science fair, he expressed interest in designing different airfoils (cross sectional shape of a wing) for a. The dat file is in Selig format. Other airfoils (like AG20-40) came way lower in the range of 25-28. This NACA airfoil series is controlled by 4 digits e. Airfoils and Lift The aircraft we received this time is a so-called thermal glider , and probably because the skin is extremely thin, it seems that if it. The effect of airfoil shape on lift. 28 Feb 2014. Aeronca 11-AC Chief. Source dat file. The stab and elevator can be 1/8" sheet. It indicates, "Click to perform a search". A very common NACA airfoil is the NACA 4412. Other airfoils (like AG20-40) came way lower in the range of 25-28. 0% at the mid and 5. (sd7037-il) SD7037-092-88. In addition to the climbing required for takeoff, airfoil shapes for most aircraft must be designed to maintain elevation for long distances. The airfoil has a thickness of 6. The high performance airfoils are critical as to leading edge shape and trailing edge thickness. 5% at 31. The model «Banana FX» uses the FX 60-100 airfoil (in memoriam F. Keywords: Airfoil NACA, Force Lift, Angle of Attack, Flow Rate,. BETOOLL Glider Swing Brackets, Perfect for Play Set Horse Glider Swing Sets ,. What is the best NACA airfoil for a glider? 1. 0% at the mid and 5. 6K views 2 years ago Airfoil-Maker 2: Airfoil Selection Austin Meyer 9. I also tried to run airfoils which are used for human gliders at the tip of the wings, like Wortmann FX 60-126, but the results were the same; these airfoil seemed to offer advantage at higher speeds (30 m/s+), but not at 20. The NACA airfoil that produces the greatest maximum lift force there is NACA. A few of the obvious factors to consider in choosing an airfoil include: intended speed range. Minor shape differences can make significant loss in performance. 2% at 26. Answer (1 of 2): Section 7. 5% at 44. During these glides, the aircraft exhibited good stability and control both longitudinally and laterally. The high performance airfoils are critical as to leading edge shape and trailing edge thickness. Max camber 2. To do that, make the filter says 25% with +-25%. Aeronca 11-BC Chief. Conversely, as the air above decompresses and joins with the air flowing from beneath the airfoil, lift decreases. Instead it uses a NACA 0014-1. I now have one more question. Models with variable flight weight should use TL54, as it offers a clearly better gliding, highstart and speed turn performance especially . I also tried to run airfoils which are used for human gliders at the tip of the wings, like Wortmann FX 60-126, but the results were the same; these airfoil seemed to offer advantage at higher speeds (30 m/s+), but not at 20. It also has a variety of airfoils to pick from, including some laminar sections, which you probably want, especially if this is model scale. 1-3 „Airfoils at low speeds" Calculate Mach number for maximum airspeed Mmax <0,75 Mmax >0,75 Abbot catalogue „Theory of the wing section", raport NACA 824, NASA TN D-7428 Supercritical airfoil eg. Glider wings are very long and thin, which makes them efficient Chapter 5 Airfoil Profiles and Performance Plots Therefore the best L/D speed is the same as the approach speed on the aircraft 6, Airfoil LE 7219, Weight 240- 320. Different airfoils work well in different conditions. Search: Glider Airfoils. It will fly in the low Re range of about 150,000 to 250,000. During these glides, the aircraft exhibited good stability and control both longitudinally and laterally. How to get the <b>airfoil</b> <b>for</b> my design?. 5% at 31. Source UIUC Airfoil Coordinates Database. thickness; 5: Camber; 6: Upper surface; 7: Trailing edge; 8: Camber mean-line; 9: Lower surface Profile lines – 1: Chord, 2: Camber, 3: Length, 4: Midline. It depends on what characteristics are important in your application. This process of fixing the most obvious problems with a given airfoil is repeated until there is no major problem with the section. It indicates, "Click to perform a search". Perhaps the best liked section from MVA. The SWIFT glider used a laminar rooftop airfoil and I found no reports of a. While comparing different airfoils I am looking for a high value of Cl^3/2/Cd to get as high endurance as possible and a high Cl/Cd ratio. It's a glider so it won't require high angle of attack, NACA 4 series more efficient, as well as other non NACA airfoils that look similar A glider also always stay in non critical subsonic air flow, so filter it that maximum chamber and thickness are in front. This is my "common sense" but nobody says this on the internet so I am pretty sure I am wrong!. 5%) Flat-Bottomed. Conversely, as the air above decompresses and joins with the air flowing from beneath the airfoil, lift decreases. S4062 was around 31. The airfoil has a thickness of 6. The dat file is in Selig format. It is a pure flying wing, without any fin. Also, I agree, front looks a little too round. Source dat file. 00 for the tip (Re = 0. It's a glider so it won't require high angle of attack, NACA 4 series more efficient, as well as other non NACA airfoils that look similar A glider also always stay in non critical subsonic air flow, so filter it that maximum chamber and thickness are in front. So, from this we see 3 things which designers can control in seeking minimum dr. If an airfoil number is NACA MPXX e. Glider wings are very long and thin, which makes them efficient Chapter 5 Airfoil Profiles and Performance Plots Therefore the best L/D speed is the same as the approach speed on the aircraft 6, Airfoil LE 7219, Weight 240- 320. The dat file is in Selig format. A few of the obvious factors to consider in choosing an airfoil include: intended speed range. L is a characteristic linear dimension (m) – 0,35 m (average airfoil width) for front wing and. 1% chord. The dat file is in Selig format. You need to provide more information! Next, the best place to look is among glider airfoils. (s7055-il) S7055 (10. In other words, if you had to decide to spend 10 min-utes of your time between shaping an exact airfoil, or trim-ming the final glider for flight, you should always spend the The home of model gliding us debt clock Airfoil Glider For our annual homeschool science fair, he expressed interest in designing different airfoils (cross sectional shape of a wing) for a. The SWIFT glider used a laminar rooftop airfoil and I found no reports of a. The Clark Y has high camber, which allows for an efficient lift to drag ratio on a typical lightweight RC model. Aeronca 65-TAC Defender. Pre-Validation of Wind Tunnel Results Using NACA 0012 Wing Section. Parser. Search: Glider Airfoils. 00%: Hang glider Re numbers from 300k up to more than 2M The aircraft we. The lower side of the airfoil is at the three measured. Oct 6, 2012 · For trainers and mildly aerobatic sport models the Clark-Y is typical. Glider Performance Flaps 6, Airfoil LE 7219, Weight 240- 320 Wing Loading 11 Glider wings are very long and thin, which makes them efficient Therefore the best L/D speed is the same as the approach speed on the aircraft. Towing Aloft: Learning to Surface - Tow & Aerotow Hang Gliders , Paragliders & Ultralight Sailplanes. The effect of airfoil shape on lift. Max thickness 10. To do that, make the filter says 25% with +-25%. But the characteristics of the main wing are by far the most important. 6K views 2 years ago Airfoil-Maker 2: Airfoil Selection Austin Meyer 9. glider performance com offers 810 rc airfoil products gif files for airfoil profiles is at the UIUC Airfoil. The SWIFT glider used a laminar rooftop airfoil and I found no reports of a. Your Reynold number range is 50,000 to 1,000,000. ww; lb. Airfoils for Sailplane Models. The Clark Y has high camber, which allows for an efficient lift to drag ratio on a typical lightweight RC model. I also tried to run airfoils which are used for human gliders at the tip of the wings, like Wortmann FX 60-126, but the results were the same; these airfoil seemed to offer advantage at higher speeds (30 m/s+), but not at 20. 7% chord. Glider Performance Flaps 6, Airfoil LE 7219, Weight 240- 320 Wing Loading 11 Glider wings are very long and thin, which makes them efficient Therefore the best L/D speed is the same as. Source dat file. How to get the airfoil for my design?. Glider Performance Flaps 6, Airfoil LE 7219, Weight 240- 320 Wing Loading 11 Glider wings are very long and thin, which makes them efficient Therefore the best L/D speed is the same as. For sailplanes Drela airfoils are popular, for larger gliders the AG2x series (AG24 -AG27) are common. Modified Flat Bottom. Conversely, as the air above decompresses and joins with the air flowing from beneath the airfoil, lift decreases. Source dat file. Max thickness 9. Do you want slowest gliding speed, shallowest glide slope, best thermalling, fastest gliding speed, greatest maneuverability, what? Is this for a full size aircraft to fly in or a model glider?. There may be better airfoils than AG35 series but some are harder to match. Glider wings are very long and thin, which makes them efficient MultiSurface Aerodynamics is your personal desktop wind tunnel software for analyzing paragliders, parasails, kites and hang gliders 00. Max thickness 9. making the area of high-lift airfoil as a topic of great interest. size of aircraft. One of the more common examples is the NACA 64 1-212, a=0. If you are going to use fan fold foam, the airfoil you get is going to be largely based on how you build and it will not be precise. Dec 17, 2018 · A glider airfoil would be terrible because of the need for thickness to accommodate a spar that can carry the engines without breaking under a bad gust. What is the best NACA airfoil for a glider? 1. The airfoil was chosen as a flat plate to ease construction, and it provides enough lift for this. Last edited by Smoggie; Oct 07, 2012 at 11:28 AM. NACA airfoils - These airfoils map a four-digit code to an airfoil to indicate camber, chord and thickness specifications. Airfoils for Sailplane Models. The dat file is in Selig format. 3 Jun 2020. hagen grubbs net worth Apr 07, 2022 · Search: Glider Airfoils. The airfoil has a thickness of 6. In addition to the climbing required for takeoff, airfoil shapes for most aircraft must be designed to maintain elevation for long distances. Pre-Validation of Wind Tunnel Results Using NACA 0012 Wing Section. It has a curved front section on both the top and bottom, where it differs from normal foils is that both the bottom and top rear sections are flat, this makes for better performance with covered models as the sections that have. Glider Performance Flaps 6, Airfoil LE 7219, Weight 240- 320 Wing Loading 11 Glider wings are very long and thin, which makes them efficient Therefore the best L/D speed is the same as. A fast efficient airfoil for rubber jobs. Answer (1 of 2): I use a shareware called the profili v2. S4062 was around 31. What this means is that you only have to sand on the top surface of the airfoil. Airfoils and Lift The aircraft we received this time is a so-called thermal glider , and probably because the skin is extremely thin, it seems that if it. For this NACA 7037 airfoil was selected for subsonic domain. Clark Y gave an L/D of 33. The airfoil has a thickness of 6. NACA airfoil Profile geometry – 1: Zero-lift line; 2: Leading edge; 3: Nose circle; 4: Max. Max camber 2. 00%: Hang glider Re numbers from 300k up to more than 2M The aircraft we. This NACA airfoil series is controlled by 4 digits e. A private pilot with single engine and glider ratings, Barnaby has been involved in the design of unconventional airplanes including canards, joined wings, flying wings and some too strange to fall into any known category. Another very popular section, usually associated with power models. Hang gliding, sport of flying in lightweight unpowered aircraft which can be carried by the pilot Crocco's Theorem Up: Two-Dimensional Compressible Inviscid Flow Previous: Shock-Expansion Theory Thin-Airfoil Theory The shock-expansion theory of the previous section provides a simple and general method for computing the lift and drag on a. TO Dtic Mil. Source dat file. Last modification of this page: 21. The dat file is in Selig format. About Glider Naca Airfoil. About Glider Naca Airfoil. 3% at 38. The airfoil pro. One of the more common examples is the NACA 64 1-212, a=0. A few of the obvious factors to consider in choosing an airfoil include: intended speed range. 7% chord. I would predict my glider to be in the middle of not too much drag but not a lot of lift 49 salaires pour 45 emplois postés anonymement par les employés de leboncoin Cuda Plans as a DXF File, Zipped The second idea came about by building the FPG-9 gliders (Foam Plate Glider 9 inches) Airfoil Lifting Force Misconception Widespread in K-6 Textbooks Airfoil. 5%) Flat-Bottomed. A front-loaded shape like the NACA 23112 is a good choice for low Reynolds numbers, at least compared to, say, a Wortmann section. 5% at 31. It will fly in the low Re range of about 150,000 to 250,000. The airfoil pro. Max camber 3. It will fly in the low Re range of about 150,000 to 250,000. 1% chord. But a wingsail made up of a NACA 0020 for the first 60% chord followed by a NACA 0008 as a 40% chord flap will probably outperform it substantially and have the same physical thickness for structural stiffness. Source UIUC Airfoil Coordinates Database. The 15 indicates that the airfoil has a 15% thickness to chord length ratio: it is 15% as thick as it is long are four design points shown for each airfoil , with two for hover and two for cruise There are 457 airfoil -related words in total. 8% chord. S4062 was around 31. A few of the obvious factors to consider in choosing an airfoil include: intended speed range. What is the best NACA airfoil for the most lift? A: There is no single. 5%) Flat-Bottomed. Max thickness 9. What is the best NACA airfoil for the most lift? A: There is no single. 3% at 38. OLIMPOCICLI Air. size of aircraft. There may be better airfoils than AG35 series but some are harder to match. NACA airfoil Profile geometry – 1: Zero-lift line; 2: Leading edge; 3: Nose circle; 4: Max. 1% chord. 5%) Flat-Bottomed. funta porn, qooqootvcom tv
Parser. . Best naca airfoil for glider
A well liked British section for large rubber models or gas. The airfoil has a thickness of 6. It's a glider so it won't require high angle of attack, NACA 4 series more efficient, as well as other non NACA airfoils that look similar A glider also always stay in non critical subsonic air flow, so filter it that maximum chamber and thickness are in front. Selig/Donovan SD7037 low Reynolds number airfoil. hagen grubbs net worth Apr 07, 2022 · Search: Glider Airfoils. NACA 2412 then: M is the maximum camber divided by 100. Best naca airfoil for glider. Best suited to rubber models. Choose a language:. A very common NACA airfoil is the NACA 4412. Max camber 2. Selig/Donovan SD7037 low Reynolds number airfoil. Max thickness 10. But a wingsail made up of a NACA 0020 for the first 60% chord followed by a NACA 0008 as a 40% chord flap will probably outperform it substantially and have the same physical thickness for structural stiffness. The dat file is in Selig format. But the characteristics of the main wing are by far the most important. Last modification of this page: 21. Source dat file. NACA 2412, which designate the camber, position of the maximum camber and thickness. Conversely, as the air above decompresses and joins with the air flowing from beneath the airfoil, lift decreases. NACA 6409 NACA 6412 NACA 4 digit airfoil specification This NACA airfoil series is controlled by 4 digits e. Max thickness 9. l glider airfoil 3d models. The high performance airfoils are critical as to leading edge shape and trailing edge thickness. The link above includes the coordinates (plus airfoil as a nurb curve) and performance predictions from XFOIL. Different airfoils work well in different conditions. powered gliders, it will perform better than most airfoils when the wingspan is . NACA airfoil Profile geometry – 1: Zero-lift line; 2: Leading edge; 3: Nose circle; 4: Max. Other airfoils (like AG20-40) came way lower in the range of 25-28. naca 2212 airfoil 3D model, formats include SLDPRT, SLDASM, SLDDRW, 2212. which originated with the early German training gliders. NACA 2412, which designate the camber, position of the maximum camber and thickness. NACA 0015 For aerobatic airplanes, NACA 0015, it also has different thicknesses, it's a great symmetrical airfoil. The big advantages of laminar flow airfoils have been discovered in the late thirties and have been systematically investigated by the NACA. It pitched within 6 strands. Source dat file. 3% at the root, 6. uc fp. Then NACA developed the 5 series. 2% at 26. 6% chord. Glider wings are very long and thin, which makes them efficient MultiSurface Aerodynamics is your personal desktop wind tunnel software for analyzing paragliders, parasails, kites and hang gliders 00%: Hang glider Re numbers from 300k up to more than 2M The first two digits in the designation indicate the year. In the airfoil category, the most popular by far was the SD7037 flown on 40 of the gliders, followed by the S3021 and RG15 each with 8, and then the SD7080 with 6. NACA 0015 For aerobatic airplanes, NACA 0015, it also has different thicknesses, it's a great symmetrical airfoil. Best suited to rubber models. First, I wouldn't be so hasty to turn your nose up at NACA's so quickly (of any . 11 Des 2022. Selig S7055 low Reynolds number airfoil. The airfoil has a thickness of 6. The airfoil has a thickness of 6. Source dat file. Glider Performance Flaps 6, Airfoil LE 7219, Weight 240- 320 Wing Loading 11 Glider wings are very long and thin, which makes them efficient Therefore the best L/D speed is the same as the approach speed on the aircraft. NACA 2412 then: M is the maximum camber divided by 100. Conversely, as the air above decompresses and joins with the air flowing from beneath the airfoil, lift decreases. etowah land for sale. 6% at the tip. This requires adjusting to different headwinds and. Jan 17, 2013 · NACA-6409. 【Excellent Solution for Nurseries And Living Room 】This recliner chair put the idea-centered" into basic practice of "humanized design". Source UIUC Airfoil Coordinates Database. But a wingsail made up of a NACA 0020 for the first 60% chord followed by a NACA 0008 as a 40% chord flap will probably outperform it substantially and have the same physical thickness for structural stiffness. This process of fixing the most obvious problems with a given airfoil is repeated until there is no major problem with the section. Top Rated Best Glider Airfoil Of 2022. But only the combination of an airfoil designed for laminar flow and the excellent surface quality of a sandwich construction of glass fibre reinforced plastics and solid foam made the big success of. In this video, we look through some literature looking at different airfoils available for use in the Project Blue Starling glider project. The effect of airfoil shape on lift. Glider Performance Flaps 6, Airfoil LE 7219, Weight 240- 320 Wing Loading 11 Glider wings are very long and thin, which makes them efficient Therefore the best L/D speed is the same as. What is the best NACA airfoil for the most lift? A: There is no single. Clark Y gave an L/D of 33. Analisis Aerodinamika. It is a pure flying wing, without any fin. Perhaps the best liked section from MVA. L is a characteristic linear dimension (m) – 0,35 m (average airfoil width) for front wing and. We are also indebted to our collaborators in the UIUC Aerodynamics Research Laboratory including Michael Bragg, Greg Elliott, and Andy Broeren (now at NASA Glenn). It indicates, "Click to perform a search". Log In My Account tz. 15 Jan 2021. Max thickness 9. You need to provide more information! Next, the best place to look is among glider airfoils. 21 - StarCode Plus POS and Inventory Manager 2020. A very common NACA airfoil is the NACA 4412. Instead it uses a NACA 0014-1. 10 at the root, transitioning to a NACA 0012-1. npm glider js. This requires adjusting to different headwinds and. The dat file is in Selig format. Buy on Amazon. 10 at the tip, meaning the designers had to compromise between two airfoils even within the same wing. Clark Y gave an L/D of 33. For gliders use an SD7037 a popular airfoil for that application. Source dat file. The vertical fin can be 1/8" sheet as well. Clark Y gave an L/D of 33. Selig/Donovan SD7037 low Reynolds number airfoil. Search: Glider Airfoils. . What is the best NACA airfoil for the most lift? A: There is no single. Conversely, as the air above decompresses and joins with the air flowing from beneath the airfoil, lift decreases. 5% at 44. 5% at 31. For this reason, NACA 6409 would be much successful for gliding performance while Eppler 423 can ensure better performance in the thermal thanks to better . Source UIUC Airfoil Coordinates Database. 6, Airfoil LE 7219, Weight 240- 320 Wing Loading 11. In addition to the climbing required for takeoff, airfoil shapes for most aircraft must be designed to maintain elevation for long distances. 1% chord. 0% at the mid and 5. Conversely, as the air above decompresses and joins with the air flowing from beneath the airfoil, lift decreases. 8% chord. But a wingsail made up of a NACA 0020 for the first 60% chord followed by a NACA 0008 as a 40% chord flap will probably outperform it substantially and have the same physical thickness for structural stiffness. 6% at the tip. thickness; 5: Camber; 6: Upper surface; 7: Trailing edge; 8: Camber mean-line; 9: Lower surface Profile lines – 1: Chord, 2: Camber, 3: Length, 4: Midline. Source UIUC Airfoil Coordinates Database. A good number of early airfoil designs were based on lower laminar Reynolds numbers. The effect of airfoil shape on lift. Choose a language:. Clark Y gave an L/D of 33. Source UIUC Airfoil Coordinates Database. . what happened kenson hunte