Trine Aerospace Rolls Back the Calendar for Lear 20-Series
Stage 3 hushkit will keep Learjet 20s flying after the Dec. 31, 2015 Stage 3 deadline kicks in for sub-75,000-pound jets.

For Learjet 20-series operators, Dec. 31, 2015, has been looking like a dark day. That’s the last day aircraft with takeoff weight of less than 75,000 pounds will be allowed to operate in the contiguous U.S. if they do not meet Stage 3 noise standards. But Trine Aerospace (Booth 4492) has a solution that does not involve selling offshore or parting out airplanes.