Collaborative Dinghy Design

[mackid068]

I was searching around the forums and found a relatively old thread about dinghy design by Tim. Anyone up for a collaborative (Option-1/2 esqe) online design? Post away...(The idea is to create a sailing dinghy well under 20', certainly)

[lewisboats]

Pram, FlatIron, Sharpie?

Steve

[mackid068]

What does everybody like best? (Please define...)

[Packeteer]

must be cheap and easy to construct

[Packeteer]

http://www.boatdesign.net/forums/showthread.php?t=1437

previous thread on dinghy design with lots of info ^^

[mackid068]

I realize that. That's the thread I found inspiration from. Well, I'd go for a boat with Laser-performance and comfort of a keelboat. What about a 12-16' boat with a small keel?

[Alixander Beck]

I like the idea of a small keel. it can then have a fixed rudder and a nice clean transom.

[Tim B]

THanks, MacKid, I was aware that it was there, but two important issues arose from it...

Firstly, no-one wanted to ( or had the money to) put money behind an untested idea.

Secondly, The whole thread deviates somewhat in the last pages.

If you can keep it cheap you'll probably do very well. One thing that will help here is to use a rig from an existing yacht, rather than trying to piece one together.

Anyway, go for it, and I'll help if I can.

[Paul B]

I was searching around the forums and found a relatively old thread about dinghy design by Tim. Anyone up for a collaborative (Option-1/2 esqe) online design? Post away...(The idea is to create a sailing dinghy well under 20', certainly)

You'll need to be very structured in what this is supposed to be, otherwise you will end up with too many ideas that don't fit. Of course you will inevitably be told that you are "nuts" if you don't have it foil or use a canting keel, or both...

Something to consider:

http://www.boatdesign.net/forums/showthread.php?t=5460

[Tactic]

It will need a canting keel,hydrofoils or it is a complete waste of time.
It should have some patented devices also.
There I just saved all you guys pages of disscussion....
Watch your discussion does not get hijacked..yet again.

Cheers all !
Tactic

[mackid068]

I'm quite nuts. I like old-style boats, Hereshoff H12 1/2 for example.

[Tim B]

Woah... there's only one way to sort out what goes on a boat... the budget. If it's too expensive it doesn't get done. Most cost is in the systems and rigging, so if we assume a second-hand rig, then capping the price at say £600 for a 12 footer, £1000 for 15 footer, maybe £2000 for a 20 footer. would be as good as anything. I am assuming that you home-build it here.

Anyway, the point is, why do we "need" extra complexity. The essence of any design is "What does it need to do... and how can we do it best for the least complexity"

Tim B.

[mackid068]

Need to do: Be stable enough for a novice and fast enough for an intermediate sailor or a not as strong (or young-ish) sailor.

Least Complexity: GRP?

[Doug Lord]

This boat seems to be similar to what you said you were interested in earlier. Perhaps you could make it less expensive, less high performance or whatever-at least if you spend a little time studying it it could give you a frame of reference.
http://www.sailabongo.com
=============================================

Bongo Specifications
-------------------------
Length::15'-2"4.62
Length Waterline15'-0"4.57
Max Beam 6'-6"1.98m
Waterline Beam 3'-0"0.91 m
Draft:3'-11"1.19 m
Pole Length 3'-6"1.07 m
Displacement 415 fully rigged 189.24kg Ballast100 lbs 45.6 kg
Sail Area Main 112 sq-ft10.40 m^2
1st Reef 87 sq-ft 8.08 m^2
2nd Reef 72 sq-ft6.69 m^2
Spinnaker147 sq-ft13.66 m^2
Jib 19 sq-ft1.77 m^2
Total Crew Weight 120-300 lbs55-137 kg
Manufactures Maximum Recommended Load:Maximum Crew2 crew
(165lb each)2 crew
(75 kg each)Maximum Gear20 lbs 9 kg
Maximum recommended Load for crew and gear350 lbs160 kg
Minimum Crew Weight for capsize recovery110 lbs50 kg

[mackid068]

That's a NICE boat.