The installed price of Aviation Partners blended winglets for the Hawker 800 increased on March 1 by 7.6 percent– from $395,000 to $425,000. The Seattle company, which has completed 30 installations on orders for more than 50 to date, claims winglet-equipped Hawkers will fly 180 nm farther up to 7 percent less fuel, climb to altitude faster and cruise 18 knots faster.