Kfm2 flying wing. Apr 20, 2017 · A simple explanation of KF wings.

Kfm2 flying wing. This is the Dominator, a simple build aimed to be a direct competitor to the FT Arrow, but easier to build. The resulting stepped wing can have improved performance and flying characteristics compared to the simpler "flat-plate" wing used in some radio-controlled models. The build portion of this video is sped up 38x. Jun 18, 2018 · I have a question though about KFM wingfoils. Sep 12, 2019 · Flying wings generally only have 2 control surfaces called elevonsthey function as an elevator and ailerons. If I wanted to get The Kline–Fogleman airfoil or KF airfoil is a simple airfoil design with single or multiple steps along the length of the wing. May 29, 2010 · Here is a simple to build flying wing. Unlike traditional airfoils the KFm has one or more steps induced along the length of the wing. Made from Dollar Tree foam. Dec 30, 2010, 06:18 AM Oct 30, 2011 · Aircraft - Electric - Airplanes Foamies (Scratchbuilt) Discussion FPV40 Delta Wing with KFM2 Page 1 of 2 1 2 Feb 10, 2016 · A “proper” flying wing airfoil has a slight upturn in the elevons that creates a downward pressure on the trailing edge of the wing. Thus, he achieved the stepped wing profile. Which was enough for a moderate pass with a 3s 850mAh pack, 12a BLHeli ESC and the Tachyon 1408 3750 motor mounted on a bottle cap with two 3. Key: Yellow: foam board, Green: Printed parts Total cost would be: including motors, flight controller, analogue camera Dec 31, 2020 · Dominator KFm3 Flying Wing - An easy to build, easy to fly F pack flying wing. The wing seem to "lean into" the turns nicely as speed increased and as turns were This is a scaled down FPV49 design flying wing with some custom bits. Dec 22, 2017 · Which KF wing best simulates undercamber? - RC Groups Aircraft - Electric - Airplanes Foamies (Scratchbuilt) Discussion Which KF wing best simulates undercamber? Page 1 of 2 1 2 Next Thread Tools Last Post Discussion ** Kline-Fogleman Airfoiled Flying Wing ** Tony65x55 Foamies (Scratchbuilt) 3960 Jul 20, 2018 06:01 AM Idea 40" Depron Dynamite, Kline fogleman Depron build dougmontgomery DLG Hand Launch Gliders & F3K 693 Jul 11, 2017 09:48 PM Cool Here is my KFm-5 DLG GLider (Kline-Fogleman) dougmontgomery Foamies (Scratchbuilt) 151 Apr This is how I make KFm2 airfoils for my RC planes' wings. Jul 30, 2015 · I change the name to W Stingray wing because everybody in the flying field that saw the plane, call it the stingray. It wants to go forward. [14], conduct an experimental study of the flow field on a stepped airfoil at very low Reynolds number. 5Sweep=26cmAirfoil = Kline-Fogleman2Step Length = 50%of chord length Jun 18, 2018 · Collaborators - build 1 - 800 mm KFM flying wing Hai-Lee Jun 18, 2018 Prev 1 2 3 Next Just a quick park flight of my new 30 inch lightweight wing Sep 4, 2018 · Also as a beginner I am not sure of your hand skills as some designs suffer badly if built poorly. Page 58-Discussion 24" DS (Dead Simple) Flying Wing - Pics, Video, Plans Foamies (Scratchbuilt) Jan 23, 2010 · Aircraft - Electric - Airplanes Foamies (Scratchbuilt) Discussion ** Kline-Fogleman (KFm) Airfoils - Building/Flying Discussion ** Page 31 of 742 First 21 29 30 31 32 33 41 81 131 531 Last Thread Tools This thread is privately moderated by jackerbes, who may elect to delete unwanted replies. 7 folding prop. It was originally devised in the 1960s for paper airplanes. Jun 9, 2024 · KFM6 Flying Wing by Red20RC | Jun 9, 2024 | FPV Wings | 0 comments I admit that I am a lazy builder. Nov 26, 2020, 04:40 AM #10561 Discussion SpaFFFnutz 48" KFm4 Flying Wing - Electric FFF/Coroplast Hybrid SPAD - Simple Plastic Airplane Designs I designed a flying wing in Google Sketchup which has a TL54 airfoil and a KFm2 airflow in the outer edges of the wings to see if a drooped leading edge in combination with the KFm2 airfoil would Jun 30, 2024 · The study provides insights into the aerodynamic characteristics of a flying wing UAV with a backward-facing stepped wing profile. Airfoil Aug 29, 2019 · Apart from the launches you definitely have a flyer there and you flew it quite well for a first time attempt. A Spitfire flying wing. Nov 18, 2007 · Each one uses the step concept and they all work extremely well. A couple strips of duct tape reinforce the center where all the electronics are mounted. The FPV49 by FPVTrond has used the KFm airfoils successfully for some time. Root chord = 28cm , Tip chord = 14cmSpan= 120cm, A. Took about 4 hours to build. Jan 15, 2021 · Looking at the wing of a bird a shape of an airfoil is seen, of course, birds normally fly at slow speeds so most of them will have an undercambered airfoil, which will produce more lift at slow speeds. Behind the step a vortex is formed which becomes an adaptive part of the Dec 8, 2012 · When flying the KFm-4 feels more like its on rails. The "airfoil" will be a KFm2, which is extremely easy to build, and apparently gives decent performance. KFm2 Page 2 of 2 Prev 1 2 Thread Tools Page 8-Discussion 36" KFm4 DS2 Flying Wing - Plans Foamies (Scratchbuilt) Nov 27, 2021 · I did some not very scientific tests of 3 wing designs to see how well they glided. Flying weight is at 14 ounces; with a wing area of 2. Give them a go, they are very suited for use on all powered models We invite and welcome the introduction of new and different K-F winged builds, if you want to document a specific build and/or have sustained exchanges about it, we recommend you give it a name, start a thread for it, and post a link to the thread here too. Another flying wing design I build. This initial flight has an 18 gram 1811 motor and is flying on 300 2S lipo. R = 5. In this part I measure and cut the foam for the body, glue it together and m Oct 19, 2014 · Growing to improve your build: KFm airfoils. It's running an inexpensive motor that is providing 170 watts of input power, so the performance is VERY impressive! KFM-6 RC Flying Wing. This will help with making the wing even tougher over time! If you actually need to , build, fly or repair your wing this is the thread that hopefully brings it all together for Feb 7, 2021 · Okay, after building and flying the Dominator KFm wing, I thought I'd give designing a flying wing a go. That's it. They are very easy to build in 20" and 30" lengths and different wing chords and fuselage tube diamaters and use singly or Home > Video Gallery > Build a light KFm2 Flying Wing - electronics install John Childs Templates: 0 Videos: 66 Photos: 0 2014-05-23 21:03:13. bobskinner Flying Wings 779 Jan 17, 2015 10:52 PM Discussion Flying wing plans Herishi The Builders Workshop 5 Oct 05, 2011 08:35 AM Discussion Need Flying wing plans stefan_mkd Flying Wings 5 Sep 13, 2011 08:52 AM Discussion SpaFFFnutz 48" KFm4 Flying Wing - Electric FFF/Coroplast Hybrid jackerbes SPAD - Simple Plastic Airplane Designs 10 Nov More about my project of building KFm2 twin engine puller (tractor) wing here: http://ausleuchtung. php Root chord = 28cm , Tip chord = 14cmSpan= 120cm, A. It is two pieces of flat foam glued together. The upper layer of the wing is also thinned as it approaches the Dec 21, 2024 · Good day! There is a famous design called the DS wing or poor man's wing known for it's simplicity and not requiring alot of gizmos. (2s 80g) Q: Would three layers, or two lifting pockets. Jul 11, 2014 · A second attempt at flying the 96" Canada Wing and it flies. FPV49 uses Kline-Fogleman airfoils also known as KF or KFm (modified) airfoils. This was a design by @Hai-Lee found on this thread here FPV49 build thread The FPV49 is a scratch built RC deltawing designed to carry an on board live video system as well as an on board HD camera. To me it looks like the kfm-2 and FT folded had similar performance, however the hot wired wing seems to win out over both with what looks like about 1/2 the drop for the given distance. Jan 23, 2010, 01:05 PM #451 Dickeroo Dickeroo Apr 26, 2022 · Want to build a park flyer trainer 48 inch wingspan was is the best Kline to gel man wing to use, did some research on the wing need so advice from someone who flies the Kline Fogelman wings. As you can now attest the flying of a wing is very simple and requires no real special training. my Jan 30, 2021 · Page 710-Discussion ** Kline-Fogleman (KFm) Airfoils - Building/Flying Discussion ** Foamies (Scratchbuilt) Sep 8, 2018 · More about my project of building KFm2 twin engine puller (tractor) wing here: http://ausleuchtung. I covered mine with packing tape to help protect the foam from rough landings in gravel here in the Arizona desert. Many of designs that use a KF airfoil have similar flight characteristics. I made the first 445mm one with 2 layers per your suggestion, or 1 layer of lift. In this segement I install the control horns, servos, ESC, bind the receiver and Root chord = 28cm , Tip chord = 14cmSpan= 120cm, A. they are the B grades from HK. This FLYING WING has a 6% thickness and performed amazingly well, both at slow and fast speed. The changes from the scale looking Armin wing to the KFm-4 airfoil. The 29" span wing is built with a thin KFm2 variant airfoil, with the leading edge heavily carved, sanded, then heat-formed into an airfoil shape. While the KFm-2 get tossed around a lot more. It uses a KFM-4 airfoil, is swappable, and flies great. Combined with some 3d printed parts. I originally got a rough idea from a flying wing that I know works - the Teksumo - then I plugged values into this Flying Wing CG Calculator to give it the width of a DTF board, lesser sweep, and a blunt nose. The airfoil changes naturally along the span of the wing just like nowadays in our airplanes. Wingspan 594mm (or 705mm including body). The white one uses KFm-2 and the red one uses KFm-4. My main question: do the steps always have to be as thick as the main wing? (5mm Maiden flight of my 2nd folded-foam Delta Flying Wing; it is being piloted by my friend Brook to get it trimmed out & tamed down for my poor piloting skillz. This particular wing is the KFM wing. 5Sweep=26cmAirfoil = Kline-Fogleman2Step Length = 50%of chord length Dec 9, 2019 · The flight performance is really nice as is the expected normal for a KFm6 wing. Jul 27, 2013, 12:05 AM #6121 Laurence Sep 8, 2010 · Aircraft - Electric - Airplanes Foamies (Scratchbuilt) Discussion Boopidoo UGGLAN UAV with KFm2-wing + plans Page 1 of 6 1 2 3 Last Thread Tools Mar 19, 2009, 03:44 AM #1 boopidoo boopidoo On a holiday? Thread OP Discussion Boopidoo UGGLAN UAV with KFm2-wing + plans So I have this design I plan on being my step into the FPV-world but Sep 29, 2018 · Discussion DIY small flying wing plans? Flying Wings Tail-less kfm2 drag rudder and stabilization tests (iomixer) iforce2d 76. Here is the W Stingray wing with the Hawker Sea Fury paint scheme: Aug 29, 2019 · Figured to go ahead and share my experience with the KFM flying wing. As such, I am always on the lookout for new and innovative ways to build models that are both durable and perform well… KFm Airfoils The KF family of airfoils are nothing new. Apr 20, 2017 · A simple explanation of KF wings. I forgot to turn the camera on for the maiden flight, but it required only a small amount of Here is a video detailing my KFM2 30" wing that I have been flying lately. So only 2 servos are required for flying wings. Bloody thing is indestructible, doesn't need a spar, took about an hour to build but for some stoopid reason prefers to fly inverted hands off. There is now a B-2 Stealth Bomber flying with the step on the bottom and no vertical stabilizers. In the 21st century it has found renewed interest among hobbyist builders of radio-controlled aircraft, due to its simplicity of construction. The extra thickness also makes the wing much stronger than a flat plate or under-cambered wing. I will post a full video build series (p May 4, 2014 · Built a 40" span kfm wing using my table saw and chopsaw on DTFB and @Hai-Lee plans. My main question: do the steps always have to be as thick as the main wing? (5mm Kfm3 Flying Wing Build Log 01 So I need a new airframe. Even the Aug 30, 2016 · The wings use the KFm section, the choice of either a KFm2 or KFm4 depends on the thickness of your foam, and the size of your model. I had to put 20g of lead under the nose just to smooth it out a little but it flew okay without it. Dec 7, 2009 · Page 21-Discussion ** Kline-Fogleman (KFm) Airfoils - Building/Flying Discussion ** Foamies (Scratchbuilt) Root chord = 28cm , Tip chord = 14cmSpan= 120cm, A. Both the FPV49v2, from FPVTrond and Feb 15, 2013 · Discussion 36" WS KFm3 Flying Wing Foamies (Scratchbuilt) Another in the series of elliptical shaped wings. php Short video showing launch and flight of Skite wing. Kamyab Matin et al. 5Sweep=26cmAirfoil = Kline-Fogleman2Step Length = 50%of chord lengthMotor : Grand Turbo Apr 15, 2021 · Page 718-Discussion ** Kline-Fogleman (KFm) Airfoils - Building/Flying Discussion ** Foamies (Scratchbuilt) Mar 28, 2013 · This video will show you how to make four common KFm airfoils with hot glue, dollar tree foam board, and a sharp knife. KFm2 Foamies (Scratchbuilt) Jul 4, 2012 · I like flying my 28" KFm4 Mini Depron Zephr so much that I wanted a version for Float Flys. So based all dimensions upon A4, 3mm deep foam board. In this video I s May 7, 2023 · Here the jet intakes are placed to blend in with the flying wing shape. Constructed entirely of foam board. It is a scaled up version of the DS24 wing that I highlighted on my channel earlie May 21, 2014 · This is part 1 of a 3 part series on building the lightweight KFm2 Flying Wing. The EZ-fly Delta uses a KFm4 wing, the KFm4 is made using three layers of foam. The wing span was chosen simply because that's the largest size of foam I can easily obtain, and the root chord and tip chord were chosen to be in a 2 : 1 ratio. The wing has a KFM airfoil. Flies Sep 27, 2014 · I recently made a KFm2 wing with polyhedral tips for use on my KFoenix Stick and flew it in RET configuration (Rubber, Elevator, & Throttle, no ailerons) and was really impressed with it. 983 PowerDirector 12 25 1193 (0) Share to Facebook Add to favorites (0) Flag as inappropriate Aircraft - Electric - Airplanes Foamies (Scratchbuilt) Discussion ** Kline-Fogleman (KFm) Airfoils - Building/Flying Discussion ** Page 554 of 740 First Prev 54 454 504 544 552 553 554 555 556 564 604 654 Next Last Thread Tools Maiden flight of my new KFm-6 Flying Wing. 4 square feet, the wing loading is 5. there are now 3 sizes, . Kfm4 Flying Wing Build Log 01 Something that I'm working on, a blunt-nose flying wing that will utilize the Kfm4 airfoil. Essentially it is just a stepped airfoil, with a single step on the top at 50% of the chord. The choice of KFm2 or KFm4 is just about getting a decent thickness on the wing , in order to make it strong and stiff. May 23, 2014 · Maiden flight of the lightweight KFm-2 flying wing. It is a scaled up version of the DS24 wing that I highlighted on my channel earlie Oct 30, 2011 · I am scratch building a parkjet delta wing plane (old Polaris ) Does the KF design work well with delta wings? Yes, KFm airfoils can be used anywhere a traditional airfoil would be employed. This time I tried my first KFm-4 wing. Here is a very easy to build flying wing. The section where the intakes are located doesn't have the cross section of a conventional airfoil. Jun 18, 2018 · This is the first build in what will hopefully be a series. Wing span: 810mmRoot chord: 2 Stuffed 4 servos in this 20" Dollar tree foam wing. This wing is made of two sheets of dollar store foam board, two 5g servos, a 19g motor, a 10A ESC and 6 Motor: D2830-11 1000kv 210wProp: Gemfan SF 9x4. It uses a KFm2 airfoil and foam board. This is needed to counter the effect of removing the horizontal tail surface and keep the wing flying. 李坤城 （1956年8月25日—2023年4月6日）， 台灣 詞曲作家、音樂製作人，時光城堡音樂文化工作室負責人，畢業於台灣 國立台中二中 、私立 淡江大學 中國文學學系，作品包括 鳳飛飛 《心肝寶貝》、 羅大佑 《火車》、羅大佑《青春舞曲2000》歌曲作詞。 Sep 27, 2024 · 李坤城（1956年-2023年4月8日），中国台湾音乐创作人，是凤飞飞演唱的《心肝宝贝》作词人，曾有过一段婚姻。 2013年4月，李坤城公布和小他40岁的林靖恩相恋。 Apr 24, 2025 · 近來全台各地掀起罷免潮，民進黨立委李坤城也名列其中；尤其領銜人 宋建樑 在現身新北檢應訊時，一身納粹裝扮引發輿論譁然。 我是民進黨三重區立委李坤城，曾擔任三屆新北市議員，在議會監督市政，爭取建設。 2024當選立法委員，將會繼續傾聽民意，讓三重更好更棒。 Apr 9, 2023 · 4月9日，突传噩耗，台湾著名音乐人，爷孙恋男主李坤城去世，享年66岁，随后他的儿子和小40岁的女友林靖恩都发文证实这个消息。 Jun 27, 2025 · 資深音樂人李坤城於2023年4月8日因大腸癌病逝，享壽66歲。 他與妻子林靖恩的「爺孫戀」一度造成轟動，而他過世後老家房產由妻子林靖恩繼承，兒子李卓軒拿到骨董收藏、著作權。 李坤城 （1973年5月3日 —）， 中華民國 政治人物， 民主進步黨 籍，現任 新北市第三選舉區 立法委員。 曾擔任三屆 新北市議會 議員，2022年放棄競選市議員連任並擔任民進黨發言人 [1]；2023年3月因投入立委初選，不再擔任發言人 [2][3][4]，其後通過初選 [5]，並 Aug 19, 2013 · Build Log Easy 30" KFm2 Delta Foamies (Scratchbuilt) Sep 30, 2017 · This is my first ever scratch build RC Plane. Powered by a 2836/8 1200kv outrunner with 10x4. Download the dat file data in various formats or use the dat file data in the tools. Today had a chance to have a first "proper" maiden flight with it - previous flights req Aug 29, 2019 · So now that you have flown it how do you like it? Seems like you were able to get some slow flying out of it, would be perfect for a little on board cam Jan 30, 2009 · Build Log Ming, the 18" micro KFm3 airfoil flying wing. I did however have some very specific reasons for doing so this time… The KFm airfoils have been proven time and time again as solid performing sections in RC aircraft and flying wings in particular. One thing I notice about a lot of KFm designs is that the foam board usually gets stacked up and is rounded or blunt on the leading edge of the wing. They all fly as well right side up or upside down. If you can fly a standard RC plane then flying a wing is not difficult, (But it is more responsive in pitch and roll for sure). i bought 2 to test and play with. Jul 20, 2017 · For some reason I decided that I wanted a flying wing the other day and didn't want to spend a lot of time building and designing, so I made this. The naked model is less than £9. end up creating twice the lift This one is designed using a thin KFm2 airfoil. 2 Servos, Rx, ESC, Motor, and battery you are away! Dec 9, 2012 · In the video attached I did a comparison of two flying wings that are similar in almost every way except weight and airfoil type. ch/kfm2/kfm2-puller. This one harks of the WW2 Spitfire pursuit plane. As you might know it's KFM2 airfoil, I decided to make mine Kfm4 as shown below. I'm using a 2200kv Turnigy D2826-6 motor with a 6x4 APC or Nov 18, 2007 · The extra thickness also makes the wing much stronger than a flat plate or under-cambered wing. After some thought, I've decided to build the following Dec 21, 2024 · Good day! There is a famous design called the DS wing or poor man's wing known for it's simplicity and not requiring alot of gizmos. See my other plank flying wings: https://www. Conclusion Believe it or not, the Ultimate KFm6 Aug 27, 2022 · The Swift This is the maiden flight of a scratch build RC flying wing Originally built without vertical stabilizer (Prandtl-d type) it proved to be not able to fly consistently well! Aug 7, 2013 · This is a 30" scratchbuilt flying wing made from only 2 sheets of dollar tree foamboard suitable for combat, FPV, and fun flying. This is a good example of how the step doesn’t have to be very deep. 1120mm span. View the airfoil details page with polar diagrams for a range of Reynolds numbers. Mar 15, 2011 · Aircraft - Electric - Airplanes Foamies (Scratchbuilt) Question KFm 2 Flying Wing Reflex?? Apr 13, 2017 · My passion is for quick and easy builds, simple powered flying models with a good performance. youtube. And for me , any KFm wing is the easiest of all wing builds to make So here is another super easy design, its easy to build and flies extremely well. I use 1/2 inch pink foamboard, I use this same thickness regardless of the wing chord, and put the Oct 23, 2011 · Aircraft - Electric - Airplanes Foamies (Scratchbuilt) Discussion 36" KFm4 DS2 Flying Wing - Plans Page 3 of 13 1 2 3 4 5 Last Thread Tools Oct 22, 2011, 02:24 PM #31 toki891 toki891 builds more then he flies no the lipos were junk to start with i just didnt care about them. Question KFm2 Flying wing 'flutter' and 'bobbing'? Electric Plane Talk Apr 2, 1973 · Aircraft wing showing the KFm2 Step Aircraft wing showing the KFm3 Step The KF airfoil was originally devised in the 1960s for paper airplanes. The three layers are Apr 28, 2015 · There’s nothing new about building a flying wing with a KFm airfoil and stuffing it full of FPV gear. [1] It has not been adopted for full-size aircraft capable of carrying a pilot, passengers, or other Created a 30" delta wing using two sheets of dollar tree foam board. Sorry, the video is little jerky due to zoom. Spent some time ogling the beautiful projects on rcgroups, realize that I do not have the tools to get such cool builds going, and just decided to randomly design something. It has a cleanly shaped leading edge which should allow this aicraft to fly without being pitch-sensitive (as many flat-plate-winged aircraft can be), and the drag should be minimal. Motivation I wanted to teach myself how to setup and fly a flying wing and I was intrigued by the idea of a 2 servo only plane with full roll control so I searched the internet and this included the FT pages to see if anything was Richard and Floyd found that this step wing concept is able to resist the stalling then they decided to file a patent on stepped airfoil (fig. Because the KFm-7 has 3 steps on the top May 23, 2014 · 3rd and final part of a series on building a lightweight 30" delta wing using two sheets of dollar tree foamboard. The KFm wing is very easy to assemble and the airframe is extremely tough, meaning it's a good plane for a beginner, or just a good first wing. 6). The KFH type of airfoil used allows excellent behavior and shows great potential. Here are the basic lines for shape. Overall weight including bat In this video I test out a KFm2, KFm3 and KFm4 wing on my scratchbuilt plane to compare the flight characteristics of each airfoil. Page 7-Discussion 36" KFm4 DS2 Flying Wing - Plans Foamies (Scratchbuilt) Aircraft - Electric - Airplanes Foamies (Scratchbuilt) Discussion The Spitwing. I considered two options 1) articulating the motor to raise it for takeoff and landing like my Mallard Duck or 2) building a BiWing and locating the motor between the two wings. This one is a delta wing, with a triangular shape. 7g servos - 110g of AUW weight. With "proof of flight video" Foamies (Scratchbuilt) Nov 26, 2020 · Aircraft - Electric - Airplanes Foamies (Scratchbuilt) Discussion ** Kline-Fogleman (KFm) Airfoils - Building/Flying Discussion ** Page 705 of 741 First 205 605 655 695 703 704 705 706 707 715 Last Thread Tools This thread is privately moderated by jackerbes, who may elect to delete unwanted replies. The authors examined the performance of a few versions of KF airfoils from KFm2, KFm3, KFm4 and KFm6 with the conventional design profile in VAWT [14] [15] [16] [17]. Aim to have construction to be as simple as possible. Oct 30, 2011 · I am scratch building a parkjet delta wing plane (old Polaris ) Does the KF design work well with delta wings? Yes, KFm airfoils can be used anywhere a traditional airfoil would be employed. For more details about thi Oct 9, 2023 · Easy to build, beginner friendly RC Flying Plank Design with KF Airfoil Wing and Ardupilot onboard | Download free 3D printable STL models Aug 30, 2016 · The wings use the KFm section, the choice of either a KFm2 or KFm4 depends on the thickness of your foam, and the size of your model. Will the area along the jet About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket © 2025 Google LLC Aircraft - Electric - Airplanes Foamies (Scratchbuilt) Build Log B-Rang; Single Sheet KFm2 Far Swept Wing - With Video and plans Page 1 of 4 1 2 3 Last Thread Tools Mar 18, 2011, 11:08 AM #1 Quick61 Quick61 Just call me crash for short Thread OP Build Log B-Rang; Single Sheet KFm2 Far Swept Wing - With Video and plans While there have been Hey guysToday I will show you how to make a single Servo Rc plane wing set-upIn this video, watch the KFm2 airfoil wing come to life as we complete the fligh Dec 23, 2019 · The authors examined the performance of a few versions of KF airfoils from KFm2, KFm3, KFm4 and KFm6 with the conventional design profile in VAWT [14] [15] [16] [17]. 83 ounces per square foot. The difference this time was the following 3 things: more This flying wing (originally designed by ProjectFlightDesign) has a deep KFm-2 step that produces too much lift and makes the wing climb with excessive power. Sep 10, 2019 · As per the name of the thread if you build fly and crash a KFM wing then please post your story, pics, or videos. Stalls were non-existent, as was the glide (as usual)! Rolls are nice and crisp although loops required a fair bit of power to get over the top without a wingover. com/p Dec 31, 2010 · Aircraft - Electric - Airplanes Foamies (Scratchbuilt) Discussion ** Kline-Fogleman (KFm) Airfoils - Building/Flying Discussion ** Page 117 of 742 First 17 67 107 115 116 117 118 119 127 167 217 617 Last Thread Tools This thread is privately moderated by jackerbes, who may elect to delete unwanted replies. php May 5, 2016 · Discussion The Spitwing. 7ESC: HK 30A BlueSeriesBattery: Turnigy 2200mAh 3S 20CWeight: 760 grFlight time: ~17 min A simple test to see if the KFm2 FPV30 flying wing could handle the extra weight and drag of a set of floats. After some time the further development in KF airfoil lead to the new design airfoil which is known as KFm (Kline – Fogleman modified) airfoil. Added srvos, control horns, fixed the leading edge, and added cut sheet. Enjoy Richard Kline's goal was to create a paper airplane that could fly long distances and automatically increase altitude by countering wind resistance and turbulence. It took about 4 hours to build. Airfoil search Search for airfoils available on the web or in online databases, filtering by thickness and camber with preview images of the airfoil sections. It had excellent tracking and control and good rudder authority, which had been a problem with the stock Slow Stick wings. May 25, 2021 · Welcome back subscribers and new viewers to the RC Plane Addict, a place where I get to share my passion and addiction for flying RC Planes. 5Sweep=26cmAirfoil = Kline-Fogleman2Step Length = 50%of chord length Sep 8, 2018 · More about my project of building KFm2 twin engine puller (tractor) wing here: http://ausleuchtung. Links to the original data source for more information. About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Jan 10, 2025 · Had a go at putting together a model for a flying wing. Personally I am migrating my trainee pilots onto KFM flying wings simply for the reduction in repairs required! Have a look at a KFM wing, There are a few designs in the forum. 4K subscribers 857 Nov 21, 2011 · Here are some simple methods for making a real, cambered airfoils and versatile fuselage tubes out of Readi-Board foamboard from Dollar Tree, packing tape, and hot glue. . Kline Fogleman profile structure can also be called stepped wing profile. Aircraft - Electric - Airplanes Foamies (Scratchbuilt) Discussion ** Kline-Fogleman (KFm) Airfoils - Building/Flying Discussion ** Page 409 of 742 First 309 359 399 407 408 409 410 411 419 459 509 Last Thread Tools This thread is privately moderated by jackerbes, who may elect to delete unwanted replies. Sep 16, 2019 · The most used sections being KFm2, KFm3 and KFm4, because they are the quickest and easiest to make, still flying well. Sadly the Mobius stopped recording after around 4min. The KFm4 acts like a symmetrical airfoil. Mar 1, 2017 · The 26" Nifty Is a KFm2 build, the smaller sizes use the KFm2 and the large sizes use a KFm4. xkw elyqh xgmol ksclqxf rtmw oegjm kxg qqrojy ofwoo qcngz

26th Apr 2024