Antagonists. Antagonists bind to the same receptors as full and partial agonists but do not cause activity at the receptor. Moreover, antagonists block agonists and partial agonists from binding and therefore prevent receptor activation altogether.
JetBlue operates 54 100-seat Embraer 190s, supplementing 126 150-seat that are used on longer-haul routes, according to the Aviation Week Intelligence Network fleets database. Barger, who stretched out deliveries of the after becoming CEO in 2007, stopped short of saying he regretted ordering the aircraft.
NetJets has a worldwide fleet of approximately 7001 aircraft, by far the largest private jet fleet in the world. The current average age of charter aircraft in the U.S. is over 15 years, more than double the average age of the NetJets fleet. Since 2013, NetJets has been receiving delivery of hundreds of new NetJets aircraft.