IMHO,
I treat steam-outs as a operating case and stress acordingly
I would be wary of any significant gain by trying to achieve complience with a occational case.
Quote "So Bob we no need to worry about lift-off supports and our concern is only to check nozzle loads."
thats a worrying statement, one should always be wary of supports lifting off, and closing ones eyes to other potential problems in the design is not best practice
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Best Regards