The Avia BH-8 was a prototype fighter aircraft built in Czechoslovakia in 1923. It was an unequal-span biplane developed on the basis of the ill-fated BH-6 design, in an attempt to address that type's problems. It shared the BH-6's unusual wing cellule design.
When test-flown in late 1923, it did indeed display better flying characteristics than its predecessor, but was overtaken in development by another variation on the same design, the BH-17. pr wickepedia