Some of the ideas and inuendo in
quid's quote are frighteningly dangerous. The long/short runway example is potentially the most scary.
Imagine the scenario - This pilot is coming out with all the
Most jets get to 80 kts. only about 2000' into the takeoff roll ..... etc. to a new F/O on his first line sector on type.
You can picture the mental turmoil now going through the co-pilot's mind.
Where has he/she
(not quid) acquired his/her
specific take-off performance data from ?
Did I miss something in ground school ?
Did the line training team sell me short ? How do I deal with this using good CRM and not look a complete pratt ?
Mutt's post speaks volumes. Bear in mind that in "most" cases when considering a dry, non-field length limited departure from long runways at "lighter" weights, Vr will equal V1 - end of arguement.
Also consider if you were to use Professor Pat Pending's V1 calculation method and successfully reject the take-off above V1 without an overun. You then decide to evacuate the aircraft and some pax. incur minor/major injuries. Their jolly smart Lawyers subsequently discover that you used a non-established and non-approved method to reject following a false warning. The least you will expect to hear is the Chief Pilot saying "what a very strange way to resign !!!"
Perhaps extreme, but still worth thinking about to keep it in context ?