Water in hull.

[Rudmer Stoel]

Hello all,

I've made a rc-model of Billing Boats, the White Star (no. 570). After
several test runs (the bath-tub and litte pond) I could fine tune it during
my vacation in Belgium.

I've have one problem... water is coming trough the screwshaft(?) in the
hull. I've used grease (vaseline) to try to prevent the water flowint trough
the shaft.The amount of water was less than before the grease, but there was
still water in the hull.

Does someone experianced it before and maybe has a solution for it?

Greeting from Holland

Rudmer

[Paul B]

Get a bilge pump!
HeHe!
"Rudmer Stoel" <rudmer@NOSPAMbiergek.nl> wrote in message
news:4336f7ff$0$63090$dbd4f001@news.wanadoo.nl...
> Hello all,
>
> I've made a rc-model of Billing Boats, the White Star (no. 570). After
> several test runs (the bath-tub and litte pond) I could fine tune it
> during my vacation in Belgium.
>
> I've have one problem... water is coming trough the screwshaft(?) in the
> hull. I've used grease (vaseline) to try to prevent the water flowint
> trough the shaft.The amount of water was less than before the grease, but
> there was still water in the hull.
>
> Does someone experianced it before and maybe has a solution for it?
>
> Greeting from Holland
>
> Rudmer
>

[William]

"Rudmer Stoel" <rudmer@NOSPAMbiergek.nl> wrote in message
news:4336f7ff$0$63090$dbd4f001@news.wanadoo.nl...
> Hello all,
>
> I've made a rc-model of Billing Boats, the White Star (no. 570). After
> several test runs (the bath-tub and litte pond) I could fine tune it
> during my vacation in Belgium.
>
> I've have one problem... water is coming trough the screwshaft(?) in the
> hull. I've used grease (vaseline) to try to prevent the water flowint
> trough the shaft.The amount of water was less than before the grease, but
> there was still water in the hull.
>
> Does someone experianced it before and maybe has a solution for it?

I usually build a "sump" under the ends of the stuffing tubes, or just
position
a plastic tray of some sort there, to catch the water. If it isn't coming in
very fast,
I just empty it out when I'm done running. Otherwise, a small pump could be
used.

Getting the shafts watertight is difficult. Close tolerances at the
bearings,
and heavy grease packing (heavier than vaseline would probably be good)
is a good start.

You could probably make an effective propellor-end seal with an o-ring.
You'd have to fabrication something at the end of the stuffing box to hold
the o-ring in slight compression to make the seal. (And use a grease that's
compatible with the o-ring material.)

-Wm

[Rex Reynolds]

"Rudmer Stoel" <rudmer@NOSPAMbiergek.nl> wrote in message
news:4336f7ff$0$63090$dbd4f001@news.wanadoo.nl...
> Hello all,
>
> I've made a rc-model of Billing Boats, the White Star (no. 570). After
> several test runs (the bath-tub and litte pond) I could fine tune it
> during my vacation in Belgium.
>
> I've have one problem... water is coming trough the screwshaft(?) in the
> hull. I've used grease (vaseline) to try to prevent the water flowint
> trough the shaft.The amount of water was less than before the grease, but
> there was still water in the hull.
>
> Does someone experianced it before and maybe has a solution for it?
>
> Greeting from Holland
>
> Rudmer
>
I gather from researching the subject a bit, that a 'plain' stuffing tube
has a total clearence of approximately 1/32"(.8mm) or less, and a length of
3"(7.62cm) or more. Length seems to have more impact on keeping things dry.
most of the folks I've talked to agree, vasoline does not belong on a prop
shaft. plain everyday multi-purpose grease should work if you're not trying
to turn high revs. hth
rex

[Ruediger]

Rudmer Stoel wrote:

> Hello all,
>
> I've made a rc-model of Billing Boats, the White Star (no. 570). After
> several test runs (the bath-tub and litte pond) I could fine tune it
> during my vacation in Belgium.
>
> I've have one problem... water is coming trough the screwshaft(?) in the
> hull. I've used grease (vaseline) to try to prevent the water flowint
> trough the shaft.The amount of water was less than before the grease, but
> there was still water in the hull.
>
> Does someone experianced it before and maybe has a solution for it?
>
> Greeting from Holland
>
> Rudmer

Similar problem here with a 1:350 Tirpitz from Academy that I refurbished to
be self-propelled - Solution: A tiny pump connected to a water-detection
circuit in the ships lowestmost part is spitting the water out now

--
Sincerely

Ruediger

[Mike]

Try building a stuff box. Frame it in with balsa and fibreglass, and have
the shaft run through it. Have the side away from the hull milled flat, and
have a screw down lid. You fill the box with fibre packing material and
grease, and have it packed tight, and screw down the lid. It should take
care of the seepage.

"Ruediger" <ruediger.leibrandt@gmx.de> wrote in message
news:dhgbp4$spq$00$2@news.t-online.com...
> Rudmer Stoel wrote:
>
>> Hello all,
>>
>> I've made a rc-model of Billing Boats, the White Star (no. 570). After
>> several test runs (the bath-tub and litte pond) I could fine tune it
>> during my vacation in Belgium.
>>
>> I've have one problem... water is coming trough the screwshaft(?) in the
>> hull. I've used grease (vaseline) to try to prevent the water flowint
>> trough the shaft.The amount of water was less than before the grease, but
>> there was still water in the hull.
>>
>> Does someone experianced it before and maybe has a solution for it?
>>
>> Greeting from Holland
>>
>> Rudmer
>
> Similar problem here with a 1:350 Tirpitz from Academy that I refurbished
> to
> be self-propelled - Solution: A tiny pump connected to a water-detection
> circuit in the ships lowestmost part is spitting the water out now
>
> --
> Sincerely
>
> Ruediger
>