The Pentagon's top weapons buyer has ordered an independent review of the $12.9 billion Gerald R. Ford aircraft carrier, citing a list of actual and potential deficiencies with the costliest warship ever.

"With the benefit of hindsight, it was clearly premature to include so many unproven technologies" on the vessel, from those needed to generate power and launch and land aircraft to its radar and elevators to move munitions, Frank Kendall said in an Aug. 23 memo addressed to Navy Secretary Ray Mabus and obtained by Bloomberg News.

The review comes three months before the carrier is scheduled to be delivered to the navy. The Gerald R. Ford is being built by Huntington Ingalls Industries Inc., with advanced systems from a number of subcontractors, including Raytheon Co. and General Atomics.