Rossiter Pintail Mortagne sur Gironde, near Bordeaux |
![]() |
Laser 28 - Excellent example of this great design Hamble le rice |
![]() |
Laser 140101 Tynemouth |
![]() |
List classes of boat for sale |
V Twin |
Post Reply ![]() |
Page <1 7891011 142> |
Author | |
johnreekie1980 ![]() Groupie ![]() Joined: 11 Jun 07 Online Status: Offline Posts: 91 |
![]() ![]() ![]() ![]() Posted: 21 Jun 12 at 9:14am |
GRF claims that the electricity is free which interested me greatly as an engineer as I am not aware of any truly free source of electricity available on the planet. Further reading on this matter indicates that the Bonneville Hydro Electric Plant is run by a not for profit organisation called the BPA. The BPA markets the electricity to the market at a price which allows it to break even. So unless all the operators, maintainers and materials providers are working for free then it is highly unlikely the electricity is free. Wikipedia and common sense could be wrong however I doubt it very much. We are also forgetting that the dam was built by the army and therefore the governments expense which would also not be free. Nothing in life is free and GRF would do well to remember this.
Credibility is lost when posting wrong facts on the internet.
|
|
![]() |
|
haroosh ![]() Really should get out more ![]() ![]() Joined: 14 Jan 09 Location: United Kingdom Online Status: Offline Posts: 521 |
![]() ![]() ![]() ![]() |
I thought Andy only worked on fast boats!!!
|
|
Keith
RS100 GBR 116 (XLR8) |
|
![]() |
|
G.R.F. ![]() Really should get out more ![]() Joined: 10 Aug 08 Location: United Kingdom Online Status: Offline Posts: 4028 |
![]() ![]() ![]() ![]() |
Well it may have been a long passage of time, but I've not really been here much, I've been a travelling fool this last few weeks, what with meetings in the States, France and Germany, a different country each week for the last three weeks.
She's laying in my drive looking a tad forlorn and I have to make a decision do it try or should i get her down to someone proper like Andy @ Bloodaxe for example. I've kind of formed a plan as to what's needed, but I want to do t and lose some hull weight, that will involve carbon and expense...
Edited by G.R.F. - 20 Jun 12 at 6:47pm |
|
![]() |
|
fab100 ![]() Really should get out more ![]() ![]() Joined: 15 Mar 11 Online Status: Offline Posts: 1005 |
![]() ![]() ![]() ![]() |
Come on GRF, you've had more than enough time to stick some flowery-pattered fablon over the V-twin ding and get back on the water.
So what's happening; I hope you've not consigned the poor old girl to the nettles already
|
|
![]() |
|
blaze720 ![]() Really should get out more ![]() ![]() Joined: 28 Sep 05 Location: United Kingdom Online Status: Offline Posts: 1635 |
![]() ![]() ![]() ![]() |
oh, don't you end up with the Icon?
.... not what we set out to do but the general logic is exactly right and how the idea developed. In terms of the concept you can get into a virtuous circle where you simply do not need a very powerful rig to drive a heavier and increasingly complex overall package. Keep it light, keep it simple and go for very high efficiency in terms of rig and hull - it also means that you can offer a relatively advanced all carbon rig at a very attractive overall cost ... but Icon was/is primarily aimed at the 2 sail niche which had not been pursued much for 35 years ... since that other NS derivative pointed the way in the 70's - and that boat was the Tasar. Mike L. (Cirrus Raceboats) |
|
![]() |
|
Rupert ![]() Really should get out more ![]() Joined: 11 Aug 04 Location: Whitefriars sc Online Status: Offline Posts: 8956 |
![]() ![]() ![]() ![]() |
The lighter hull could then have less sail area to drive it, and if the hullform was more easily driven, you could loose the bowsprit and kite and save both the weight of it and structural weight - oh, don't you end up with the Icon?
|
|
Firefly 2324, Puffin 229, Minisail 3446 Mirror 70686
|
|
![]() |
|
RS400atC ![]() Really should get out more ![]() Joined: 04 Dec 08 Online Status: Offline Posts: 3011 |
![]() ![]() ![]() ![]() |
I was thinking about what a similar size boat could be built down to, not looking to build a light 400.
You could lose most of the double floor. Taking 12 sqm and adding decks etc say 20sqm times 1.5kg/sqm 30kg for a shell. Looks like 40kg bare hull ought to be possible. There are some kg to be lost from the ali rig. Would it be strong enough? Would it be going faster and hitting the water harder? How different would it feel to sail? |
|
![]() |
|
aardvark_issues ![]() Really should get out more ![]() ![]() Joined: 24 Jul 05 Location: Weston-Super-Mare Online Status: Offline Posts: 505 |
![]() ![]() ![]() ![]() |
A 400 is probably more like 11 or 12 M for the hull - if you look at the mouldings for the cockpit the insides will be more again! Don't forget to add a few hundred g per M2 for the gelcoat though. If you painted a 400 you could drop loads of weight out of it, but add a couple of £k to the finished price... |
|
![]() |
|
DaveT ![]() Groupie ![]() Joined: 31 May 05 Location: United Kingdom Online Status: Offline Posts: 76 |
![]() ![]() ![]() ![]() |
I'd such high hope such as esteemed handbag retailer could revolution dinghy design, bad times
|
|
![]() |
|
RS400atC ![]() Really should get out more ![]() Joined: 04 Dec 08 Online Status: Offline Posts: 3011 |
![]() ![]() ![]() ![]() |
Taking an RS400 size boat as being around 2m by 4.5m, You might guess at 10sqm in the hull skin, say another 5 in foredeck and side decks, allow another 5kg for a rig bulkhead and board case, it looks like radical weight saving could be possible? Even allowing for local reinforcement. |
|
![]() |
Post Reply ![]() |
Page <1 7891011 142> |
Forum Jump | Forum Permissions ![]() You cannot post new topics in this forum You cannot reply to topics in this forum You cannot delete your posts in this forum You cannot edit your posts in this forum You cannot create polls in this forum You cannot vote in polls in this forum |