MarinesMay 01, 2013 $1,888.27 — The cost of a single turbine blade for the Marines' AV-8B jump jet, according to a Rolls Royce contract, here, announced Tuesday for $8,081,795 for 4,280 "high pressure turbine blades" for the engines that power the corps' Harriers. A Marine AV-8B / MC1 Tommy Lamkin Share Read Later