Aviation Partners is delaying approval of its Hawker 800SP blended winglet upgrade until next May. It says this is due to a failure to obtain engineering data from Raytheon Aircraft. Aviation Partners has clinched five orders for the winglet upgrade, and was planning to deliver the first shipset next year. The kit, which costs $350,000 installed, produces a 7% drag reduction "with a corresponding range increase", says the company. The 1.06m (3.5ft)-tall winglets also give better time to climb performance, and an 18kt (33km/h) cruise-speed benefit over the standard aircraft.
Source: Flight International
