Moebius (Revell) Skipjack Build

[MFR1964]

Tom,

Nice job on the floating peroscope, as you know, i did the same with the 212 to get things up, as for the bobbing, i didn't build such a construction inside, once the water inside the tower is high enough it will stay ferm, i encountered the bobbing by making the foamfloat thicker, so it's less responsive to any slight waterlevel change, as long it's a few centimeters nothing happens.

Manfred.

[trout]

Yes, Manfred, I do remember you doing that on the 212! You and others inspired me to try it out. My goal in this hobby is to try a little of everything to learn as much as possible. Maybe next time it will be hydraulic lifts. Anyways, thank you for the kind words! I really appreciate it and I appreciate learning from you, David, and others here and other forums.

[trout]

Can the sub-driver for the Skipjack run on 7.4v? or must it be 11.1v? What would be a reasonable mah rating? Is a 25c discharge rating adequate?

[greenman407]

My two cents is that I have heard others say that, that is what they are running on,7.4 volts. 25C is a good rating for your pack, the higher the better. As far as MAH rating, I would recommend at least 4000, but the more the longer run times. In my opinion , too much is better than not enough.

Sure, it will run at the lower voltage. Just not as fast as a 11.1-volt pack (same as playing major-league baseball with Whiffle bats). The charge/discharge rate is of no matter -- you're never going to pull that many Ampere's with that motor, unless you stall it on some weeds. Capacity is the big player here: I can run my SKIPJACK for three hours with 6 Ampere's of 11.1-volt battery on board -- two 3000mAh, 11.1-volt, two-cell batteries wired in parallel.

M

[trout]

Thank you Mark and David. That helps.
Looking over the Sub-Driver (the name specifically for David's WTC) you will quickly see she is a beauty. Opening the wtc was a little tough, but David built notches into the edge for a flat head screw driver to enter. I did not see any bubbles or weak castings looking it over. Once I got it opened the safety float valve plopped out. That surprised me, but once in the cylinder it does not appear to move that much. There were some areas that I have questions about.

I noticed there are no capacitors attached to the leads on the motor. Perhaps they are built inside, if not I think they should be added especially since the antenna runs under it. I will read over the cabal reports and postings again to see if I missed something.


My micro 9 gram are too small for the current distance, but would they work? If not, I will buy some mini. The space between the brackets is 1 3/32" or 28mm.


This concerns me, the o-rings on the bow end of the etc look to have light contact or no contact. I will need to add a wrap or two, three of plumbers teflon tape, like I did on the Gato.


Another area of no contact with the cylinder. I did not have a switch in my parts, so I will need to order one.


Great squish in the center bulkheads.


Aft end has one o-ring with great squish and one with so-so (but ample to seal)


This baby has lift!

If, and that is a big IF, I did my math correctly, it looks like this ballast tank has about 1.6 pounds of lift. In Tim the Toolman Taylor grunt "arr,arr,arr"

[He Who Shall Not Be Named]

(Sorry, Mark, I hit the 'edit' button instead of 'reply to thread' on you -- that's how I accidently stepped all over your above thread. Sorry)

David

[He Who Shall Not Be Named]

Those motors have internal spark suppression capacitors, Tom. You're good.

Mike found a source in China that would install them at the factory -- it's great to have the clout of the Caswell Company working for us. I could never arrange for that kind of consideration when I was buying them ten at a time, not by the hundreds.

Spring for the mini's -- lots of force coming off those bigger control surfaces, Tom.

Yeah, hit those forward bulkhead O-ring grooves with some Teflon tape. Or, send me your address and I'll send you a replacement forward bulkhead (but no guarantee it will be tighter -- each bulkhead has to be custom fit owing to sloppy industry cylinder tolerance adherence).

And the word, Squish, has not officially been added to the lexicon!

You got enough reserve buoyancy in that tank to lift just about any 'modern' 1/72 submarine model representing a single shaft nuclear powered submarine. The SKIPJACK 3.5 SD is suitable in a wide range of subjects.

M

[trout]

Those motors have internal spark suppression capacitors, Tom. You're good.

And the word, Squish, has not officially been added to the lexicon!

M

Who told me that you never start a sentence with the word "And"?
Thanks David for the information. To say I am WOWed by the work you have in this Sub-Driver is an understatement. There is a light that emanates from the cylinder and I hear music when it is taken out in the open. On a serious note, You and Mike have really done a fantastic job on this.
Peace,
Tom

[He Who Shall Not Be Named]

You sweet talk'n thing you!

M

[trout]

No, I got proof, look!



See it glows!

[He Who Shall Not Be Named]

Smart-ass!

We threatened to sue SC members over just that kind of thing. Watch it!

David

[MFR1964]

Whaahaa, You made my day Tom!, a perfect example of meditation before grinding away on your SD, abuse her gently!


Manfred.

[Subculture]

Squish- someone has been watching my videos I think. Tis a word though- in the Concise Oxford dictionary, so there!

[trout]

David, not intended as the past thing, but you know that. If loving my WTC is wrong, I don't want to be right! (modified song - think Luther Ingram)

Manfred, I am glad you got a laugh out of it.

Andy, Yes, I did watch your videos, a fine work they are, but I have used the word for awhile (maybe not in this context and that is your influence!). It is a proper word indeed!

Enough of this silliness, time to get back to the build. I am accumulating some parts and not sure when I will get a post in. It will just depend on local verses shipping in sources.

Peace,
tom

[He Who Shall Not Be Named]

All good fun guys. And Andy: great videos -- stuff the newb's need to see.

M