Three String Loogs
Quick answer: GBE, from low to high.
Loog Guitars use the same first three strings -and tuning- of a six-string guitar. This is why everything you learn on a Loog can later be applied on a standard guitar.
Now, Loog Guitars are all about exploration, so you can also use other string-configurations and tuning if you want to: Open A, Open G… whatever works for you.
Six String models
Standard guitar tuning