Embraer and Bombardier each collected significant orders late last month for their respective regional jets, the Brazilian manufacturer from Saudi Arabian Airlines for 15 dual-class Embraer 170s and the Canadian airframe maker from Northwest Airlines for 15 fifty-seat CRJ200s. Embraer’s sale marked its first from the Middle East, a potentially lucrative market where regional networks remain largely undeveloped. Bombardier’s contract opened a new delivery conduit to Minneapolis-based Mesaba Airlines, which for years has tried unsuccessfully to negotiate flying rights for CRJs with its mainline partner. Since 2000 only Memphis-based Pinnacle Airlines has flown the Canadian regional jets for Northwest.