A pilot that just throws the levers forward and waits for V1 and VR without looking outside to see how much runway he's burning up in the process should be serving tacos somewhere...
PF's looking out, PM's looking in.
What if your flaps are set wrong, pitot tube blockage, flat tire on take off, engine doesn't produce enough thrust, TR deployment, Spoilers accidentaly deployed...whatever...all will increase runway distance....so if your just looking at your AS indicator with a flat tire, waiting for V1, not looking outside...your gonna crash....
PF's looking out, PM's looking in.
Flaps? Config warning sounds and why there's a pre-takeoff checklist. Blockage? One reason for the airspeed callout on TO. Not enough thrust? PM will notice. TR/spoilers? PM notices, config warning sounds. Tyre burst? Actions covered in the takeoff brief.
So when I see an airliner burning up 90% of the runway to get to VR. I know he didn't have the right numbers.
You can't know the numbers were bad. The situation you describe is perfectly possible. In these cases, V1 will be less than Vr.
The fact is...737...if your not looking outside to see how much runway your burning up to get a read on whether the plane is performing, that you are in the right place at the right time....I honestly doubt you will catch you capt between V1 and VR having a silent stroke....this thread is moot for you...
Someone is looking outside and both pilots are monitoring performance.
Am I the only one in here that undestands the 60/40 rule and what it means?
Haven't come across that. Or if I have, it's by a different name.
Rgds,
B&S