I know the one flown at california jets had two E-Turbax setups in it on 10s. I believe the Turbax setup is a bit over 2.5 pounds or so

So, maybe Lowell could give us an idea where the packs go tp balance the plane... If they are up in the nose as far forward as they can go, then will have any idea of what fans will work well.
I'd still for me go with the lighter fans if CG is not an issue.. I like the way lite planes fly and the longer flight times that will result from it


Ron