AustrianZRH From Austria, joined Aug 2007, 1400 posts, RR: 0
Reply 3, posted (5 years 1 month 3 days 16 hours ago) and read 3164 times:
Sounds like an excellent little (or even not so little) addition to the flight deck . However, what I don't really get: in the last landing described in the article, exit S-6 was simulated as runway end and they deliberately triggered the runway too short warning. So they got the max reverse advisory. But even though they put the engines to idle at 70 kts, they managed to turn off the rwy at 10 kts on S-6. So why was the runway too short alert triggered, is this calculated without reverse just with wheel brakes? I'm happy to learn from anyone with more insight than I have .
WARNING! The post above should be taken with a grain of salt! Furthermore, it may be slightly biased towards A.
SandroZRH From , joined Dec 1969, posts, RR:
Reply 4, posted (5 years 1 month 3 days 15 hours ago) and read 3130 times:
Quoting AustrianZRH (Reply 3): So why was the runway too short alert triggered, is this calculated without reverse just with wheel brakes? I'm happy to learn from anyone with more insight than I have
I don't know any specifics about this particular system, but generally, required runway lengths on dry runways are calculated without reversers (while on wet runways, reversers are included in the calculation). The same goes for calculating accelerate stop distances.