I found a mistake upon rereading my earlier post. V1 is not the takeoff "safety" speed - V2 is Takeoff Safety Speed. V1 is Takeoff Decision Speed. Gee, it wasn't even late when I typed the reply either. Oh well, I guess I'll just have to fall back to my "all purpose" flight instructor defense of, "Do what I mean, not what I said."
Nice catch. You do have your facts on aviation straight. However, a twin-engine turbojet aircraft, operating on one engine, will always be capable of a positive rate of climb after rotation - it is designed into the performance charts and is a requirement. Likewise, upon landing, a twin-engine turbojet aircraft, operating on one engine, will be capable of a positive rate of climb in the event of a missed approach. Pilots are required to refer to a maximum landing weight chart whch provides us with the maximum weight we can be at landing which will allow us to be able to meet the appropriate obstacle clearance requirements. (Again, this is a very simple explanation of a very complex subject.)