General Discussion > Customers Builds
HMS Zulu build
Anatole3:
Hi
just found a wasp and Bofors same site
try here http://www.shapeways.com/search?q=1%2F96+bofors Bofors guns
here for the wasp http://www.shapeways.com/product/TW3LULPQ6/westland-wasp-helicopter-kit-1-96
hope this helps
Anatole3:
hi guys
just a quick question how much ballast (lead) do you have to put in these
and where do you put it .
ta in advance.
tolly
andy:
--- Quote from: Anatole3 on Wednesday | 10. June 2015 | 23:16 hrs ---hi guys
just a quick question how much ballast (lead) do you have to put in these
and where do you put it .
ta in advance.
tolly
--- End quote ---
I let my main Batteries be my ballast. This gave my a very good run time. A single charge lasted most events I went to.
You find a picture showing he location of my batteries in my HMS Nubian on this web link
http://www.wmunderway.8m.com/cgi/yabb2/YaBB.pl?num=1187739060
Andy
radio joe:
--- Quote from: Anatole3 on Wednesday | 10. June 2015 | 23:16 hrs ---hi guys
just a quick question how much ballast (lead) do you have to put in these
and where do you put it .
ta in advance.
tolly
--- End quote ---
Hi Tolly
There is no definitive answer to your question, the batteries / running gear components you have used and where you have placed them will have a bearing on the amount of ballast and where it is placed, only a flotation test of your near completed boat will tell.
Once you have got the boat to near completion ie. With all the weighty bit's fitted and the water line marked try the hull in water without the superstructures on, add bits of lead keeping them as low and near the centre line as possible till the hull is floating level near the water line and upright, (no lists), now try the superstructures on and check the water line if it's ok carefully lift the boat out making sure not to move the lead now tack the ballast in place with spots of glue, I use PVA in case I ever want to move the ballast, I will say if this is your first boat you will be surprised just how much lead it will take. ::DD
kit:
Hi Tolly
Joe is spot on with the basic principles.
Like Andy I let my ballast be the batteries as much as possible - my Tribal has 19AA NiMH's in there and I still had to add lead.
Lead wise I use motorbike wheel weights - they come in 60g strips but can be broken down into 5g bits. Self adhesive and the glue is obviously waterproof. I got 3Kg on eBay from a tyre dealer for about £20.
One other thing to add - try to avoid adding ballast in either the bow or the stern. Having weight at either extremity makes the boat less manoeuvrable as the inertia will resist the boat turning so try to keep the ballast as central as possible.
Oh yeah, one other thing with my Zulu - the waterline on my plan was not straight so best to check before you get busy with a paintbrush....
Initially I just measured the bow and stern waterline heights then joined the dots but the waterline was far too high amidships. In the end I measured the waterline height amidships and then stretched it for and aft to the bow and stern which I think gives the right height.
Cheers
Kit
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