Draker
Well Known Member
For those of us with EFIS's where you can set your gauge colors, did anyone bother to set a "green arc" for either RPM and/or Manifold Pressure? I have seen physical RPM and MP gauges on certified airplanes that have green arcs, but I see nothing in my engine (Lycoming) or prop (Hartzell) manuals that would indicate a "normal" range for either of these, or that would prohibit operation in any range. Just an RPM redline of course (in my case, 2700). Are there engines or props whose manuals specify either of these?