Originally Posted by
theresalwaysone
Up to 100kts is regarded as slow speed abort and could even be considered routine.
My comments here relate to the LOW SPEED rejection mentioned above, circa 70kts. By routine, I mean that it is no big deal: red light, close levers, stop.
Originally Posted by
theresalwaysone
The fact that the pilot 'jammed on' the brakes is a function of the autobrake function on take off. Above 72kts the autobrake 'arms' itself IF IT IS FUNCTIONING AND HAS BEEN PREVIOUSLY SELECTED
The autobrake self tests upon initial selection and continues to do so on the ground. Autobrake 'MAX' is ALWAYS selected prior to departure (bmi sop's).
Originally Posted by
theresalwaysone
(B.t.w the use of max autobrake is forbidden for landing so very few people have actually experienced it except in an abort.)[/I] ITS NOT FORBIDDEN, IT’S NOT RECOMMENDED
Ok I’ll give you that one, a poor choice of language on my part. Although I hope I never experience autobrake MAX on landing!
Originally Posted by
theresalwaysone
[
References to Perf A etc:
WHAT SHOULD BE POINTED OUT HERE, IN MY OPINION, IS THAT AN AIRCRAFT THAT SUFFERS A MALFUNCTION BEFORE V1, THAT REDUCES ITS ACCELERATION TO V1, IN CERTAIN CIRCUMSTANCES, MAY IN FACT NEVER REACH V1. THERE ARE NO PERFORMANCE TABLES FOR DELAYED ACCELERATION TO V1, HOW COULD THERE BE?]
Correct, that is why you stop.
Originally Posted by
theresalwaysone
A PERFORMANCE A AIRCRAFT IS AN AIRCRAFT THAT CAN SAFELY CONCLUDE ANY FLIGHT BETWEEN BRAKES OFF TO LANDING AFTER A FAILURE OF ONE POWERPLANT. IT DOES NOT MEAN THAT BELOW V1 THAT SAFE CONCLUSION WILL ALWAYS BE A TAKE OFF
But giving a limiting field, with no 'range of V1', and a power unit failure below V1, a safe conclusion will almost NEVER be a take off, you don't have enough runway!
Originally Posted by
theresalwaysone
Easy, and far from the heroics attested to here! I FEEL THAT USING THE WORD ‘EASY’ TO DESCRIBE THIS IS AN INSULT TO THE PILOT COMMUNITY, IF ITS THAT EASY WHY BOTHER PRACTICING IT ON SKILLS CHECKS?
Again my comment relates to the 70kt RTO only. As opposed to the high speed (100kts to V1) RTO which is a different animal altogether. The high speed rejection requires reaction, skill, and practice to maintain the required standard.
Originally Posted by
theresalwaysone
PLEASE DON’T BE CASUAL ABOUT AN EVENT THAT EVERY PILOT DREADS AND HAS BEEN THE CAUSE OF MANY SERIOUS WRONG DECISIONS AND SUBSEQUENT ACCIDENTS.
The 'casual' tone of my post was an attempt (which I probably overdid) to redress the balance of the outlandish report in the newspaper. It was in no way intended to belittle the actions of the individuals on the day. I hate to see reporters sensationalise a story using unqualified witnesses.