Hello all,
I believe that if runway field length is limiting then as aircraft weight increases, then the V1 Reduces. This can be seen from company takeoff performance charts.
This means this is for a balance field length correct?
I thought QRH speeds assume balanced field length so how come as weight increases when looking at the QRH, the V1 Increases?
Finally, if a balanced field is say 13000ft and charts take TODA and ASDA/EMDA to equal 13000ft then this would mean the V1 is the lowest V1 correct?
So if we were not a field length limited weight, then V1 could be increased so if we increase takeoff weight isn't this the opposite of the first paragraph?
I'm getting a bit confused
For a 737 on a long international airport runway you could feel a bit more confident of stopping on the runway after an abort at V1 but at another airfield with a shorter runway this is not the case even though both performance charts for the airfields are assuming balanced field lengths. How do we know how much margin of V1 do we have?
Thanks and sorry for the confusing post! I'm on study overload right now
