Originally Posted by
Basil
Concur.
One design weakness, which one of our GF colleagues demonstrated, was that an uncontained failure of #2 could take out multiple hyd systems. He certainly made the right decision that day or he'd have been up in the sky with only D Sys pressurised
Hi Basil, I feel that you are being a little harsh here! Certainly, the DC10 came with this hyd routing vulnerability but, from the start, the L1011 system routing in the vulnerable areas was positioned to minimise co-lateral damage risk. As far as D system hyd goes, well, that was one more system than the DC10 had!
Remember, the TriStar could continue flight to land on any single one of the four hyd systems and, the back-up system permutations were considerable, with 4xEDP, 2xATM, 2xPTU, 1xRAT and 2xelectric pumps (continuously rated on later mod).
Mr Lockheed knew how to build an airplane!
OAP