Flying Wing Designer

A tool to create your own Flying Wing model

This is for the persons who want to make a flying RC model and are already a bit deeper into the knowledge of flying wings. But ...if you are a starter, feel free to try it too.

Marko Stamenovic is the creator of this tool. He is a Serbian aeronautical engineer. I am just proud to be able to say he is a friend.Marko Stamenovic made a Excell file which is a true help if you want to design your own flying wing using swept wings without winglets.

He says: "Guys, I am preparing excel tool for designing Horten style flying wings. It starts with defining planform, then calculates neutral point and CG for desired SM. Then you enter coordinates, Cm and zero lift angle for root and tip airfoils, it interpolates all airfoil sections between, calculates needed twist using LLT (you can also input twist data from other software, LLT is limited to only small sweep angles) and calculates trimmed Cl with chosen SM. It gives you bunch of data: geometry, Re numbers for min, cruise and max speed(guesstimated)... At the end you get coordinates for all airfoil sections. You can also choose chord point around which twist is done. You can copy airfoil coordinates to dat/txt files and import that in CAD software. Then you just loft profiles and you have one side of the wing done without all the hassle of doing complex twist in CAD. I am finsihing it and trying to make it as simple as possible to use."

Elliptic and Bell Shaped Lift Distribution (BSLD)

He mentioned me it can be used for elliptical lift distribution, buuuut ...also for the bell shaped lift distribution or BSLD that is so know in the Horten designs.


In a loft you can see all the ribs together. You can see the curve of the wing. Ain't it beautiful?

In the same figure (at the bottom) you see how the twist is set for each location. If you see a curve, you have non-linear twist. Is it a line, you have linear twist.

More data





Программа для расчета летающих крыльев

(thanks Sergey Fedulov for the translation)



Marko Stamenovic: "Here is new small excel tool. This one can be used to create airfoils in the same way Horten brother did. You can choose thickness and chamber and then you get coordinates that you can paste into dat file and open with XFoil or XFLR5. (remember to change commas to dots first) Airfoil created with it should have zero Cm0. Thanks Norman Masters for sharing the link from HBA forum."




Parabell is modified version of Flying Wing Designer that enables you to make flying wings with planform that have both leading and trailing edges made in parabolic shape. Horten brothers had one parabolic glider made but unfortunately it never flew. Since then a lot of RC models have been made in similar shape.

Parabell excel file will hopefully make process of designing this unique shape a little bit easier. Parabell works in similar manner as FWD, but it is somewhat different. It should be a little simpler and easier to use. Just follow the instructions in the excel file.

Again, the main purpose of the file is to give you an easy way to get airfoil cross sections imported in CAD software. It is highly recommended that you use some VLM program to correct twist calculated in excel file. In excel twist is calculated using Lifting Line Theory which doesn't give correct values for highly swept wings.

Keep in mind that this is intended for designing RC models and not full scale airplanes.


Marko's RC model plans

Just click the picture to download this design which has a BSLD wing.