The aerospace and defense stock is on an excellent run, but how long will it last?After a difficult 2023, RTX (RTX 1.79%) stock is up a whopping 41% this year, resulting in a 17.7% return since the start of 2023.But despite the impressive year-to-date return, the bigger question is whether this bull run has come to an end. Or, does the stock have legs for a longer run? Here's the lowdown.Why RTX stock is up strongly in 2024There are two reasons why the stock has performed well this year:Management has raise ...