PurePower PWT ENGINE!!!These engines are well worth the wait and will pay off combined with the Cseries clean sheet design!-----Very doubtful EMBRAER will spend 4 billion or more to develope a clean sheet design which puts BOMBER well ahead in their category!!The PURE POWER is the future and is only the beginning and will be improved upon!!----No MATTER what the price of OIL airlines will want these engines on their planes!--Fuel savings are much to great to ignore regardless of fuel prices!!---GLTA