Mobius Skipjack in Napa Ca

[Greevesman]

The buttons give an audible click when pressed. I suspect the processor is waiting for a pulse type signal then sends full CW,CCW, or neutral depending on what is received. Probably would not know what to do with variable voltage?

[He Who Shall Not Be Named]

The buttons give an audible click when pressed. I suspect the processor is waiting for a pulse type signal then sends full CW,CCW, or neutral depending on what is received. Probably would not know what to do with variable voltage?

I can't be sure without looking at the board, but I bet that channel to the buttons is proportional like all the rest -- one board to fit many different styles of transmitter case and functions. You'll have as many as nine sets of three-wire leads coming off the encoder side of the board. Try it as I described earlier. What do you have to lose?

Probably don't cut it. Find out!

(clue: if there is one or two resisters between the buttons and the board, it's probably a proportional channel).

David

[Greevesman]

I will open the box tomorrow and photograph.

[Greevesman]

I un screwed the back of the transmitter. There are circuit boards mounted on each half and wires going back and forth. Not much slack in the wires so I was reluctant to get the halves apart enough to photograph. Channel 5 and six each have two buttons on the back. The documentation says top button full CW, bottom button full CCW. Both buttons pushed = return to neutral. Switch appears to be a single moulded piece of plastic held on by 4 screws. There are three wires, red, white and green from each switch leading back to a circuit board on the front case. If I were braver I would poke around more. I called several of the VEX vendors on the website documentation and they didn't know much. Putting in a POT is bad juju.

[greenman407]

OK here are some "Steel" stick on weights. California shouldn't have a problem with that. The guy I bought my weights from doesn't have any up now. I got a real good deal from him. Maybe you could start with these. Ill have more info for you soon.

[greenman407]

In the "Shop" at Nautilus Drydocks are listed these weights. I dont know if they are lead or not.

[greenman407]

Also Bob has some pink foam. Also he told me that He no longer Carries the ballast weight and Foam kits. So we will have to make due

[Greevesman]

The description says "zinc plated, lead free" I would like lead (or depleted uranium). I think Du-Bro has lead.
About how many ounces do I need?
Thanks

[greenman407]

OK Mr. Greevesman, Because of a tight schedule I thought tonight I would concentrate on the linkage for the fairwater planes and the foam in the upper hull section. Take note of these 10 pictures.

[greenman407]

The other 5:

[greenman407]

So as you can see in the seventh picture the sleeve for the linkage stops about 7&3/4" from the edge of the rear of the upper hull or frontmost edge of the tail cone. The front of the sleeve stops at 1&3/4" measured from the frontmost edge of the rectangular opening in the upper deck for access to the fairwater planes mechanism. As far as the foam in the upper hull, Ive crammed and filled most of the area with foam. Because of the limited clearance between the subdriver and the hull I had to vary the thickness of the foam. For example as these pictures were taken with the upper hull upside down, the foam along the edge of the joint between upper and lower hulls, those pieces had to be limited to 1/4" in thickness.

[greenman407]

Under the fairwater the edge pieces are 1/4" thick, the next row going up from there I could get 7/16" in there. But farther back only 3/8" would fit. Now once again, keep in mind, this is the "Heavyweight Modification" for Maximum stability for High speed running and Fooling around. You wont need that much foam and corresponding weight, but it also wont hurt anything either to have it.
As Dave has explained before, the foam simply keeps water from accessing that space, so therefore, since the foam is Much lighter than water, you are making it lighter up High in the hull. The weight is down low on the keel to help the boat stay self-righting in turns and resistance to torque induced hull rotations.
When I built my first sub, the Albacore, I had her spinning through the water like a High Speed drill bit. Cool to watch but not very scale like.

[greenman407]

I wont have time to do anything tomorrow but Friday night Ill get back here with pictures of the foam and weight in the lower hull.

[He Who Shall Not Be Named]

Good stuff, Mark. Very useful to a newbie.

David

[Greevesman]

Very good stuff! Thanks!