I'm familiar with the minimum 2.4% for 2nd segment and 1.2% thereafter, but it's not a question of minimums. Will an A320 be able to fly a single engine climb gradient of 5.8% (350 fpnm) up to 16,000 ft from an airport pressure altitude of 8,500 ft? (28 degrees C, no wind, MTOW, CFM engines)?
If not, does anyone know at what TOW it would be able to achieve 5.8% on one engine?
I'd be willing to bet good money that it can't make 5.8% at MTOW, but would like some sort of confirmation before I make that bet