Embraer delivered 61 executive jets during the fourth quarter, bringing the delivery total for Phenom, Legacy and Lineage aircraft to 144 in 2010. While the fourth-quarter tally exactly matched that of 2009, the Brazilian aircraft manufacturer shipped 29 more airplanes in total last year which is a 25% increase. Last year Embraer delivered 100 Phenom 100s (93 in 2009), 26 Phenom 300s (one in 2009), 10 Legacy 600/650s (18 Legacy 600s in 2009) and eight Lineage 1000s (three in 2009). Embraer's firm order backlog, which includes executive, commercial and military aircraft, stood at $15.6 billion at the end of 2010. This backlog was boosted in the last quarter, when the aircraft manufacturer inked a firm order in October with NetJets for 50 Phenom 300s, as well as options for another 75.