Skipjack was in the tank today.
Everything works as it is suppose to.
Like the slower RPM control.
After removing weight by modifying motor to a smaller physical size and removing 2 servos and steel shafts, I think I have the new additional ballast, correct.
I do still have an issue.
But before I start chasing it, I need to get the boat in a bigger tank or pond.
With my tank full of water, the boat touches the bottom with about 1/4" of the sail above the water surface.
The issue I need to chase is a balance issue.
Surfaces, the boat is stern heavy. . . not very much. Maybe 3/8" from level waterline.
Submerges, the boat is stern light. . . again, not very much. Maybe 1/2" but this is hard to tell as I think the bow is sitting on the bottom of the tank.
I am not going to try and fix this for this Saturdays gathering.
I will open up the boat tomorrow and charge the battery.
I am going to move the batter forward about 1/2" and the ballast tank back 1/2" if I can.
Test it again.
After Saturday, I plan to modify the electronics tray.
With the smaller motor and two servos gone, I can cut the electronic tray just behind the motor and remove 3/4" to 1".
Shorting the tray will give me about 1" to move the ballast tank and battery back from the front.
More weight location adjustment will be possible.
I also think the auto leveler will correct the stern position with a little forward motion.
In the tank, I can see the rear planes moving to push the stern to level.
SSBN 598 - blue/nuke trained IC/forward