I'd like to progress beyond that and towards actually having a decent clue as to what I can affect. With this in mind I've been reading through the wonderful setup guide. Today I also came across an amazing spreadsheet of testing results which Zsolt Gyetvai posted on the forum.
The gist of his testing breaks down like this:
For Front Wings:
- Mainplate always 5.5 °
- Use 1/4" gurney flap until flap angle 25° then if it is not enough use 7/10" gurney flap from flap angle 20°
- At Flap angle of 32° no gurney setup is also effective
- 1/2" gurney flap is not very effective. I do not really understand the reason. I thought it should behave between 1/4" gurney flap and 7/10" gurney flap. But not. Maybe is it a bug?
For Rear Wings:
- First use the upper wing elements to create downforce, until A3 every step creates about 10% more DF. The upper wing element is the most cost effective
- Then to fine tune the downforce level use the lower wing element. Every 0.5° step creates about 5% more DF. Start it from 7.5° then increase it to 8.0° or 8.5°
- The vertical endplate element has a very little effect on the downforce and drag. From the data I can not see the effects from the endplate, they are in the error margin
- The lower element gurneys are not cost effective. They creates more DF, but much more drag. Only use them if u desperately want more DF.
Also helpful is this setup viewer app.
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