We have discussed similar approaches for a biprop engine. A copper inner liner should be fine, assuming it's coated with a very adherent coating within the cooling passages, such as Nickel. Nickel *should* be nonreactive enough to work at moderate temperatures, but we haven't tried this yet. I don't know if Tin would be adherent enough for this purpose.
Dan
One of our regeneratively cooled engines was nickel plated brass. We couldn't run it steady state because of the small size, but running peroxide through it didn't seem to cause any problems.
John Carmack
_______________________________________________ ERPS-list mailing list [EMAIL PROTECTED] http://lists.erps.org/mailman/listinfo/erps-list
