Initial trim; the establishment of amounts and location of fixed lead ballast and buoyant foam:
1. Establish submerged trim. With the SD's vent valve open (recommend the SD power switch be off, you wont' be doing anything with the SD other than permitting its ballast tank to flood) place the maximum amount of fixed ballast weight as low as possible in the hull that the maximum amount of foam (as high as possible without topping over the designed waterline) will permit with the boat assuming neutral trim.
2. Establish surface trim. With the SD's vent valve shut (again, the SD's power switch off, and the ballast tank dry) observe the relationship between where the model actually floats and the designed waterline -- the boat should have too high a freeboard (vertical distance between deck and waterline). Move foam vertically (above the designed waterline) till the boats designed waterline falls along the plane of the actual waterline.
Done.
Leave me alone!
(nice box, by the way).
M
GATO! (It has begun)
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Tomorrow (i've already measure the tub and i think i can do this crossways lol) after i finish my box, i'm going to try to get the weights right with my sub in the bathtub. So silly newbie question, whenever one starts off with his sub in the water is there a method one should go through (for example, do i need to rock the sub back and forth in the water some or push it down some) or do i simply just put it in the water and go bananas? I know this sounds so simple, but its funny how this has never really came up before (or at least no were that i've looked). Sure, you read the pre launch check list items; but this is different.
Thoughts?Leave a comment:
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David, i think you might be right:(. Sounds mechanical like something isnt quite right inside that pump. Would mind sending me that new unit?
Matthew nimmo
2373 roland dr
arnold, mo 63010
Thanks again!Leave a comment:
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Don't dig into the terminal of the plug, just expose both ends of the resistor and solder on a jumper wire, effectively shorting around the resistor. I'm standing by to send you a new LPB. Just give me the word. Sounds like the swash-plate is coming off its foundations.
(I test these things before they go out, but sometimes a bum unit fails early with use -- you drew a bum card on that unit apparently, Matt).
MLeave a comment:
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I think David is trying to kill me. Thats the bundle of wires that i had so much fun soldering to that damn dean connector! So, you think that the motor isnt getting enough power? It sounds nice when it runs. But ever so often it will sound like something is drowning the pumpLeave a comment:
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Yank out the resistor.
In the immortal words of TWA's head Mechanic: "Any way she's gonna get it. Hang on! We're go'n for broke!"
MLeave a comment:
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Doh! I should have said that I close off the sas Snorkle with a small piece of tube capped off with a machine screw to stop the water getting in the sas system when I invert it. Sorry for the mis information...One correction to Alec's methodology: Never invert the submerged SAS equipped SD (in this case, to flood the ballast tank without use of the r/c system) as this will unseat both the float activated snorkel head-valve and safety float-valve, and water will pour into your battery space. Use the r/c system when venting and blowing the ballast sub-system.
MLeave a comment:
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So anyone have a clue on why my pump went bananas? Should i trust it? What might i be doing wrong that could be damaging it?Leave a comment:
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Well ill be! So i started tinkering with my pump ntheres a little hole on the bottom of the pump. I started to assist the motor with a small screw driver and notice it was turning over! So i kept working on it and also added some silicone oil to that area and its back to life!! Now why did it freeze up to begin with is another storyLeave a comment:
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I double checked the pump this morning and it still doesnt work (the light on the board lights up when i try to engage the pump but no noise. So any last ditch efforts to save my pump or do i have to buy a new one now:(. Oh how i hate to solder anymore in that areaLeave a comment:
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