Engineering Work Delays King Air Winglets

 - October 12, 2006, 9:16 AM

Boundary Layer Research, the Everett, Wash., company that developed winglets for the Beech Duke some 10 years ago, is now designing winglets for King Air 200s and 300s, but more engineering work than originally planned will delay certification about three months, or to the first quarter of next year, according to company president Bob Desroche. He told AIN that at least 50 operators have indicated their intent to order the installation, but he said he won’t start asking for deposits until after flight tests begin–later next month, he hopes. He said winglets will improve the speed, handling and fuel economy of the turboprop twins.