Almost correct, "it will do the trip" 's statement is entirely correct - however he didn't correct the verbiage FatFlyer posted. As per the Boeing 757 Manual "The Master Warning lights and fire bell are inhibited for fire during part of the takeoff. The inhibit begins at rotation and continues until the first to occur: 1) 400' AGL or 2) 20 seconds elapsed time." So, the 80kts part is incorrect. You would abort for an engine fire up to V1 and therefore receive fire warning indications all the way up until you rotate. Each operator has their own outlook on high speed aborts and that is where the 80 kts part comes in. Some operators view that above 80 knots the takeoff should be aborted only for engine failure, engine fire, unsafe configuration or other situation signifcantly affecting safety of flight. For example, it is usually much better to continue a takeoff after experiencing a tire failure 20 knots prior to V1 than trying to stop. High speed aborts are usually much more dangerous than taking any number of problems into the air. (The engine fire, failure, etc. list above excepted.) Anyway, for what it is worth...