Green Arc Red Zone

Should read: "Although there is no red marking..."

Although there is red marking in the green arc, the POH for the 1979
Piper Turbo Arrow IV/PA28RT-201T, the LIMITATIONS SECTION lists the
following placards:

AVOID CONTINUOUS GROUND OPERATION 1700-2100 RPM IN CROSS/TAIL WIND OVER
10 KTS.

AVOID CONTINUOUS OPERATION 2000-2200 RPM ABOVE 32" MANIFOLD PRESSURE

I believe this applies to the two-bladed prop only and not the
three-bladed prop, but I can find nothing in the manual to support this
theory. I do not find the placards on the panel of the aircraft I fly
which has the three-bladed prop.

These two lines in the LIMITATIONS SECTION are the only place in the
POH which mention this condition.