Originally Posted by
TillerEnvy
The only time I've used CON power is in the sim when it's called for on a single engine climb out. We use climb 1 on a pretty regular basis and only get LIM if we're climbing in V/S or FPA modes. You won't get LIM in FLCH mode. The 170 climbs a lot better than the 175 when we're heavy, so you will normally see LIM in the 175 when you're trying to maintain 290 in the climb and at least 1500'/minute above 27K or so.
To add to this...LIM appears when the actual speed is 5 kts or more less than the set speed in a climb (or greater than 5 kts in a descent). As you said, LIM only functions in FPA or VS, and so if it appears, the selected FPA pitch angle or VS climb rate is more than the engines can provide. The first thing that comes to mind for me is Pinnacle...why ask for a climb rate or pitch angle that results in a deteriorating airspeed? If level and the aircraft won't accelerate to or hold the selected speed, then the pilot needs to rethink the situation.
CON is an emergency power setting only according to Embraer. If someone is selecting CON to solve a cruise or climb speed issue, I suggest they refer to the performance manual for gross weight limitations.