@ThePlutonium That would certainly be a way. It's just the parts collide mean there must be a flaw in design, and I want to make it more well-designed. As the matter of fact I already solved the problem, it was the "maxVelocityAngleAdjustmentRate" was set so highly that the misslile gain a very fast relative velocity before leaving the plane far enough. Thank you for your solution anyway. I will get the new version out soon.

@Ares26 what if u will write "disableAircraftCollisions | true" in overload?

What you said is absolutely right. I am still finding ways to solve that. I tried to find out what exactly happened (maybe parts crashing into each others?) before the explosion by slow motion, but it seems in slow-mo that the missiles all seem to launch successfully , it appears the physics in slow motion and fast speed is kind of different from normal speed. Any way I will still be trying to find out the solution. Glad you like it!@ChiChiWerx

Nice, interesting look...seems like you put a lot of effort into this build...very smooth controls...I was having a lot of fun until I tried to launch the missiles at 900 KIAS at low level, I wanted to see what would happen if I ignored the warning. Yup, jet blew into a million pieces, fun done. There are ways of preventing that, because the 300 (knots, mph, kmh...?) restriction when launching a missile is a death sentence for an interdictor bomber like this one.

Very nice bomber . Great job for cool plane .