What I mean by ETOPS is long overwater flights. Thanks for confirming that it is not ETOPS certified. For ETOPS you would need extra avionics cooling, fire extinguisher capability for an entire single engine divert, etc.
What I mean by the 90 minute rule is that before ETOPS became all the craze the rule was no twin engined aircraft may fly more than 90 minutes range on a single engine from a divert airfield.
Yes i was talking about driftdown from midpoint in a 1200nm flight. I think the ER-135 has a single engine ceiling of 23,000ft and a normal service ceiling of 37,000ft. What I am trying to get at is if the ERJ-135 can fly reasonable overwater legs ?
I don't think the one hour still in air figure you mention is quite the same as what I am getting at. I appreciate your effort to enlighten me though. I guess the ERJ is not used much in long overwater legs then ?
I am trying to discover if the ERJ-135 can fly about 1200nm with a 540nm divert from the route's midpoint?