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[Jerry C]

NNF, yeah you're getting there. It's not so much where you place the ballast it's more where you put the ballast c of g. Take for example the best ballast(SLA batteries), placed on the bottom vertical gives a higher c of g. than laid on their sides. I have a model of Parat, a Voith tug. It needed no ballast, the two specified batteries were all that was required. I only needed to move them aft by 1/2". Mounted laying down the boat was very stiff, mounted vertically was perfect.
Jerry.

[Jerry C]

http://youtu.be/HIwbgFfw--I

Try watching this at half speed on a PC. The c of g of boiler, gas tank and engine is quite high. It was also very windy on the day. Boat is also a little overweight sitting below her design waterline. No additional ballast, trimmed f&a by placement of steam plant.
Enjoy.
Jerry.

[Jerry C]

Parat in rough sea.

http://youtu.be/H4TAKl7EJDw

Right click on vid screen select playing speed slow
Jerry.

[NoNuFink]

Jerry - I perceive that there is a large element of suck it and see.
Cheers

NNF

[ginnis mick]

hi just bought a parat which has leaking drive units what did you use to seal them to the mounting blocks cheers mike

[rnli12]

Mike,


Might be worth posting a picture for some clarity, im guessing silicone sealant or P38 filler and also whether any pressure being applied.


Regards,


Rich

[Jerry C]

The units, when new, come with a strip of mastic type sealant. Don't screw em down too tight to avoid distortion.
Jerry.

[ginnis mick]

hi jerry yea i guessed that, but had to take them both out as there leaking ,i think its very old cant afford to use silicon as will stick um in 4 good so any problem and that it. think iv found the stuff glasticon dum dum used to seal leaks on cars [pre 80s ] will let you know how it goes cheers mike[/pre]

[rnli12]

Hi,
Will Velcro do? you can shift it around as nuch as you need to.
Rich

[Netleyned]

This has digressed from Ballast Placement Rich.
Now talking about selants for Voith Units for Parat


Ned

[rnli12]

Suggest we change the subject matter to Voith Units.
On that subject I have expoxied both my VS units in but have ensured I can remove the motors should any failure occur.
Rich

[Martin (Admin)]

Topic renamed