Boeing Business Jets gave more details about its line of fuel-efficient and longer-range BBJ Max single-aisle bizliners today at the NBAA Convention. Looking forward, the new BBJ Max 8 and BBJ Max 9 are designed to replace the current BBJ2 and BBJ3, respectively, and feature significant range improvements, thanks mostly to new CFM Leap engines and advanced winglet technology.

The Max 8 will see a 14.6-percent range improvement and the Max 9 should post a 16.2-percent range jump over current aircraft. The first BBJ Max will be delivered in 2018, and testing is already under way on the “Boeing Advanced Winglet,” a new design being developed by Boeing for the Max.

Meanwhile, Boeing Business Jets also announced a new “Split Scimitar” winglet retrofit for existing BBJs, in cooperation with Aviation Partners. The new winglets are a modification of existing winglets on BBJs and make use of existing wing structure to add a split-tip and a lower dorsal fin. Aviation Partners president Joe Clark said the Split Scimitar boosts range by 2.5 to 3.0 percent, or approximately 200 nm, and will be priced at $500,000 to $550,000 per set. FAA STC approval is expected next year.