| Author |
 Topic  |
|
mikeb
90 Posts |
 Posted - 08 Oct 2013 : 00:38:48
|
I think my 20 could do with a bit of weight shifting from aft to fore, can't help feeling that all the weight is at the back, it certainly seems to plane nicer when someone is sat in the cabin.
But the only thing of substance that I could relocate is the battery (It's rather large - 150 or 200 Ah, plus a smaller backup battery). Would it be a bad idea to move the batteries to the front of the boat inside the cabin? I think they can give off hydrogen under certain conditions, which might be a bit of a hazard? |
|
|
IanM
United Kingdom
2238 Posts |
Posted - 08 Oct 2013 : 06:53:05
|
Don't move the batteries. In addition to the hydrogen hazard it's best to keep battery cables short to avoid voltage drops.
There is a long tradition of adding a few bags of sand/gravel to the front of Normans. Gravel is best as it doesn't attract the damp as much.
The other possibility is to move the water tank up front and endeavour to keep it topped up. |
 |
|
|
mikeb
90 Posts |
Posted - 08 Oct 2013 : 11:13:14
|
I'm not worried about the voltage drop, decent size cable will minimise that. It's just the hydrogen thing which concerns me. I will probably just move them as far forward in the cockpit as I can.
I don't have a water tank, and it seems at bit backwards to deliberately add dead weight (like a bag of gravel). |
|
|
|
trevork
3949 Posts |
Posted - 08 Oct 2013 : 12:04:30
|
| Adding sand or gravel is not a backwards thing. Its the long accepted way of correcting trim problems that arise as engines change etc. |
|
|
|
Deano
United Kingdom
1843 Posts |
Posted - 08 Oct 2013 : 18:02:37
|
I'm not sure if you are on the sea or inland, but i'm sure the Boat safety scheme would not be too happy with batteries in an unvented cabin.
BUT
As long as there is a vent at the highest point of the cabin, I can't see you ever getting a build up of Hydrogen. It's molecular size is so small it will probably go through GRP anyway!!!
If you are getting a sulphur smell, you are overcharging the batteries.
Dean - Boating on the Great Ouse.
Freeman 32 "Liberty"
See the photos http://www.flickr.com/photos/54758027@N00/ |
|
|
|
tigtog
United Kingdom
421 Posts |
Posted - 08 Oct 2013 : 23:01:44
|
| gravel bags quick and cheap |
|
|
|
mikeb
90 Posts |
Posted - 13 Oct 2013 : 10:48:54
|
Adding extra weight is just going to mean it takes more power (and therefore fuel) to keep it on the plane. My batteries never seem to need to go on a charger, the charging coils on the outboard seem to keep it topped up at present.
I might investigate fitting a vent tube, as that should make it safe.
And Tigtog, I think I've seen pictures of your boat on here - is is a N20 with some kind of cabin extension? It looks quite interesting, is it a DIY job or was it a factory option? |
Edited by - mikeb on 13 Oct 2013 10:50:36 |
|
|
|
tigtog
United Kingdom
421 Posts |
Posted - 13 Oct 2013 : 20:52:28
|
| Mike yes a N20 I bought her of a retired gent up in woodbridge, he had the boat for years, told me that norman cruisers had built with the extended cabin for a customer who was going to use at sea,gives more room inside the cabin will post you up some more photos later. |
|
|
|
fred99
69 Posts |
Posted - 13 Oct 2013 : 20:57:35
|
quote:
Originally posted by tigtog
Mike yes a N20 I bought her of a retired gent up in woodbridge, he had the boat for years, told me that norman cruisers had built with the extended cabin for a customer who was going to use at sea,gives more room inside the cabin will post you up some more photos later.
I'd be interested to see those pics. |
|
|
|
tigtog
United Kingdom
421 Posts |
Posted - 13 Oct 2013 : 21:09:49
|
 |
|
|
|
tigtog
United Kingdom
421 Posts |
Posted - 13 Oct 2013 : 21:10:27
|
 |
|
|
|
tigtog
United Kingdom
421 Posts |
Posted - 13 Oct 2013 : 21:12:47
|
 |
|
|
|
tigtog
United Kingdom
421 Posts |
Posted - 13 Oct 2013 : 21:14:18
|
 |
|
|
|
tigtog
United Kingdom
421 Posts |
Posted - 13 Oct 2013 : 21:15:00
|
 |
|
|
|
tigtog
United Kingdom
421 Posts |
Posted - 13 Oct 2013 : 21:15:58
|
 |
|
|
|
tigtog
United Kingdom
421 Posts |
Posted - 13 Oct 2013 : 21:20:18
|
 |
|
|
|
Topic |
|
Battery in the cabin?
