If your Mechanics (Engineers), ie your approved weighting specialist, has not provided a lateral arm and moment on the intial aircraft weight details then they are not doing their job properly.
If this has occured, you may find that they usally weigh fixed wing aircraft!
As said before you cannot compute a lateral CG if the base figure is not there, irrespective whether your particular loading would exceed a limit or not.
Just by placing a pilot in the PIC seat you usually (most types) are imposing a lateral CG condition. You may (and should not, in this instance), exceed any limitation BUT you should now it is there.
Start with the basics and HASSLE you Mechanics for the RIGHT info.
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