Max Gross Weight ?

[Flyin Farmer]

Hello, I have a question regarding the max gross wt. of my model 111 it was originally built with a 2 stroke 582 after a complete rebuild and installation of an 912 ul.I would like to know if because of the more powerful engine would I be able to increase my max. gross from 1050 lb. to ? and if so how would I go about it ? I have some of the original paper work and that's where I got the max. gross of 1050 your thoughts ? Thank you .

[Eric Page]

Max gross weight is dependent on fuselage and wing structure, not engine size. Changing from a 582 to a 912 will reduce useful load but will not increase MGW. Unless competently designed structural modifications -- and the calculations that go with them -- were done, how would you even determine where to set the new MGW? Any increase beyond 1,050# would just be a guess.

[Flyin Farmer]

Max gross weight is dependent on fuselage and wing structure, not engine size. Changing from a 582 to a 912 will reduce useful load but will not increase MGW. Unless competently designed structural modifications -- and the calculations that go with them -- were done, how would you even determine where to set the new MGW? Any increase beyond 1,050# would just be a guess.
I appreciate your reply, wishful thinking.