NetJets has doubled its order for new Hawkers. The fractional operator, which announced at last year’s NBAA Convention an order for 30 Hawker 750s and 18 Hawker 900XPs, disclosed last month that it ordered another 30 Hawker 750s and 18 Hawker 900XPs. Both aircraft are derivatives of the Hawker 850XP and will replace that model on the production line.