Wingmaster wing designer is software for model airplane wing design. The idea works but only with active automated reconfiguration of the shape of the steps during flight. Use the software to design and analyze an airfoil for your wing, keel, race car or wind energy project. Simple, fast and extremely accurate any airfoil you want from. For version 2, frankie arzu has provided the extra features which makes this a thoroughly useful and flexible little program. This is how i make kfm2 airfoils for my rc planes wings. This enables visual identification of the best airfoil shape for your project. Mind you, i may be all wet on this, as my knowledge of airfoils and model airplane design is admittedly limited. One of the most popular airfoils for swept wings due to low drag speed and very low renumbers you need. Ive just start using xflr5, and im studying to create a wing for a very. I want to know if the kf variant of this airfoil profile can be used in turbine blades of a gas turbine engine and if it will produce higher power output or efficiency. It was originally devised around 50 years ago for paper airplanes. I use 12 inch pink foamboard, i use this same thickness regardless of the wing chord, and put the step at half of the wing chord.
This video shows two of my fpv49 wings that uses different kfm airfoils. Will it cause any problems due to turbulence and the number of blades and stages. While these problems were happening in the background, the design gained popularity in the aerospace community from the promising performance of the paper airplane and dick and. Model airplanes viewing airfoil plotting software file. All you need is hot glue, dollar tree foam board, and a sharp knife. Download the dat file data in various formats or use the dat file data in the tools. The simplicity and performance of the kf airfoil have made it popular in the maker trainer 2 and uses the kfm2 klinefogelman model 2 airfoil design a. One of the biggest issues was that the diagramed airfoil design did not accurately resemble the actual wing profile. Pdf comparison between two klinefogleman modified kfm.
A kfm wing uses laminated foam sheets to make a layered, stepped. In response to suggestion on my previous builds that i should use a kf airfoil on my wings, i decided to do some testing to examine their characteristics. Specify camber and centerline sheeting of an airfoil along with hundreds of other features. The klinefogleman airfoil or kf airfoil is a simple airfoil design with single or multiple steps. Just relying passively on wing shape wasnt enough the vortex would detach possibly. In the 21st century the kf airfoil has found renewed interest among hobbyist builders of radiocontrolled aircraft, due to its simplicity of construction. Can a klinefogleman airfoil be used for engine turbines.
This video will show you how to make the four most common kfm airfoils. The videos was shot within a few minutes on the same day so weather conditions was similar for both flights. Discussion klinefogleman kfm airfoils advanced theory. The klinefogleman airfoil or kf airfoil is a simple airfoil design with single or multiple steps along the length of the wing. Enhancing the aerodynamic performance of stepped airfoils. Visualfoil is an easytouse digital wind tunnel that allows you to analyze airfoil shapes. Anyone who has hardwaresoftware that might help us gather data, your help will be greatly appreciated. Links to the original data source for more information. This airfoil was designed for speed wings too, but today you find even hlg tailless using this airfoil.
Further development resulted in two patents and a family of airfoils known as the kf airfoil and kfm airfoils for klinefogleman modified. How to choose the best airfoil shape by patrick hanley, ph. Unlike the example from above the kfm3 airfoil of my flying wing is built without spars except for the root section. Create an inexpensive flying wing robotshop community. The wing profile is based on a simplified kfm airfoil design kfm2.