And a more 'reality' perspective
RANGE 1 Maximum engine speed exceeded; engine damage very unlikely.
RANGE 2 Maximum engine speed exceeded; engine damage unlikely.
RANGE 3 Maximum engine speed exceeded; engine damage possible.
RANGE 4 Maximum engine speed clearly exceeded; engine damage probable.
RANGE 5 Maximum engine speed very clearly exceeded; engine damage very probable.
RANGE 6 Engine damage has generally occurred.
RANGE 1 Maximum engine speed exceeded; engine damage very unlikely.
RANGE 2 Maximum engine speed exceeded; engine damage unlikely.
RANGE 3 Maximum engine speed exceeded; engine damage possible.
RANGE 4 Maximum engine speed clearly exceeded; engine damage probable.
RANGE 5 Maximum engine speed very clearly exceeded; engine damage very probable.
RANGE 6 Engine damage has generally occurred.