think they do goood thing if its go to crash.

I am not sure, however I can tell you where to find the answer… go to (owns Learjet) and utilize the website support and comments area to send them an email. I am sure that a rep. or salesperson will have that answer for you - the best answer will come straight from the horses mouth. Continued luck with your book research…

No they definitely don’t have that capability
The difference between their maximum take off weight and maximum landing weight is small enough that an over weight landing is not such a big deal as if it were a 747.
There are procedures in place for a case where the aircraft has to return to land at max weight, target low touchdown rate and carry out a structural inspection following landing.

I worked for LearJet in the 70s and none of the models from that time had fuel dump. As Polar said, they can land at nearly the same weight they takeoff at, so there’s little reason to dump fuel in a hurry.

No. None of the usual corporate-type jets e.g. Lear, Bombardier, Raytheon, Falcon, Gulfstream, etc. have the ability to dump fuel…nor do they need it.

Even the larger corporate jets such as the BBJ-Boeing Business Jet (B-737) and the A320, don’t have the plumbing to dump fuel.

See: