LZ
OK, let's look at it another way.
If a TR were produced and fitted without Delta 3 hinges (of course, the pitch links would still have to have control over blade pitch) would you expect it to flap more (its amplitude increased) than its Delta 3 equipped relative on another Heli.?
I think you would.
It could still flap to equality as does any MR, but would do so more slowly than if D3 equipped.
I accept that a TR with Delta 3 is still capable of hitting its stops but it would do so LESS readily (if at all) than a similar TR
without D3.
Flapping is indeed caused by dissymetry of lift which is countered by flapping to equality but the difference with D3 is that the process begins 45 degrees or so EARLIER
in the cycle and thus -
"The Delta 3 hinge reduces flapping amplitude."
Now let's not have a blood and guts, OK?