The above images show the stresses without the design adjustment. The typical yield strength of the chosen steel is 250 megapascals (MPa), and the maximum stress shown is 235 MPa. Generally, we like to keep the stresses at less than half the material yield strength as a safety factor. After a discussion with the client, it was decided that a central supporting leg would be a good addition. Simulating the stresses at the design stage likely saved this client the headache of having to try and weld up cracks under fuel tanks later on.