Back in 2000 the original CH-53E-to-X upgrade plan had a projected unit cost of $21M. When Milestone B was approved in 2005 the new-build unit cost was stated as $56M, a figure that has since grown to $76M excl. R&D (or $102M with).
'Course, Bell originally claimed
the V-22 would cost only 25-50% more than a 214ST!
I/C