Subdriver Position in 3D Printed Skipjack 1:72

[biggsgolf]

Hi all,
I have printed the Skipjack 1:72 from The Nautilus Drydocks. I need to know where to position the Subdriver in the hull? Is there a general rule or procedure for determining where to position the cylinder in the hull?

[RCSubGuy]

The big thing is the ballast tank placement. You want it as close to the center of buoyancy as possible. If it's not 100% there, you can make adjustments with trim foam, but it becomes exponentially harder to trim out.

[biggsgolf]

Thanks Bob, makes sense, I think I will try placing the SD in the hulls with all control rods etc but not attached to the SD until I find the sweet spot between surface and submerged trim, then I will know approx. where it needs to be with the least amount of foam & weights.