With RET Aircraft, you practically NEED Dihedral to maintain any sort of straight line Stability.
(... and I already know that I'm better at THEORY than PRACTICE! But I'm catching up)
Someone with Flying Wing experience will need to better explain it's unusual Flight characteristics.
I DO know that Modern 1:1 Wings (F-117, B-2), use advanced Avionics to manage any inherent instability.
@Hai-Lee That's the reason why the AV-8B Harrier is no longer the "Widowmaker" that the AV-8A or British Electric Mark 1 Harrier was.... Avionics!!
The Lockheed F-104 also had stubby Anhedral Wings too. NO advanced Avionics.... It REQUIRED a certain calibre Pilot - an KILLED 12 of them that didn't respect or couldn't handle her.
In the Right Hands, she was FAST and Maneuverable enough to keep up with several of today's Fighters!
History Lesson over!
I am having Fun. 😉