You are right there is a take-off configuration warning system which activates the master warning system and provides an aural alert. But the crew unbelievably chose to ignore it, this warning system would have been sounding throughout the take-off roll, yet they still continued.. .The flight operates from Auckland to Nandi (Fiji) and then onto Seoul. The scary thing is, you or your family could be on board the next one and might not be so lucky. Things are better in KAL as I've whitnessed over the last three years. But they are still not good enough and every sector with a local at the controls whilst you're a passenger is a white knuckle ride. Just ask for other pilots own experiences, they are both unbelievable and shocking. KAL should not be allowed to get away with this terrible low standard of operation anymore. I think that Air France and Delta have either been hoodwinked or it's a political decision to codeshare.