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Didi Mini Mk 2 from Dudley Dix Designs Posted by : sausmusiii
Dudley Dix Designs

 We are cutting kits for the Didi Mini Mk 2, designed by Dudley Dix. First kit shipped to Quebec, Canada. Check the Web Links for a link to builder web site. 

The Didi Mini is designed to the Open 6.50 Prototype Rules and if care is taken during build, the Didi can be built as light as a full out Carbon Fiber Proto at a fraction of the cost.

You may not know but I am building a Didi Mini Mk 1 from a kit that I purchased from Eric over two years ago.

You can follow my progress and non-progress o­n my building website Mini-Sailor.US. I am building an all out Plywood Prototype Mini, carbon fiber rig, canting keel, water ballast, etc.

I purchased a plywood o­nly kit and have located suppliers for all of the other components and will add them as options as we complete the kit and kit pricing.

Click here to read more.

From Dudley's website.

Mini 6.5 or Mini-Transat boats attract great interest worldwide. Tiny but costly offshore yachts, they give spectacular sailing, and are generally beyond the ability of most amateur builders. Commissioned by a client who wants to build a reasonably competitive boat himself, this design is our contribution toward reducing the cost of these boats.

Detailing is based o­n the series of radius chine plywood designs that started with my DIDI 38 "Black Cat", and was followed by the DIDI 34,
Mount Gay 30 and DIDI 26.

Design principle is simplicity and to the Mini 6.5 Class limits. The initial design has a fixed keel and conventional water ballast, as well as single aft daggerboard for tracking downwind. We have added a canting keel & forward daggerboard to the package, so that builders can choose the option that suits them. Linked twin rudders are steered by central tiller.

Keels are hollow aluminum fabrications with through-bolted beaver tail ballast bulbs. The fixed keel has optional trim tab. Both keels are supported by the hull structure by means of an internal aluminum box frame. The fixed keel has an integral post to transfer some of the keel loads through to the deck structure.

The deck layout is a fairly conventional 3-winch arrangement. The smaller headsails sheet to the top of the cabin and are led to the cabintop winch. The larger headsails and spinnakers sheet to the cockpit winches. Tweeker lines replace headsail tracks.

We have sold nearly 60 sets of plans for her, as at Dec 2005. Drawings include full size Mylar patterns of the backbone, bulbs, rudders and daggerboards. Optional full size Mylar patterns for the bulkheads are also available.

Kits vary from bulkheads with hull & deck skin through to almost everything needed to complete your boat. Please clarify with suppliers what is included in their prices.

We now also have a cruising version of this design, the
Didi Cruise-Mini. It has a smaller rig, optional lifting keel, more accommodation and more headroom in the cabin. It is more suited to those who want good performance but a simpler boat with a bit more comfort.

Specifications of the Didi Mini Mk2.

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LOA 6.50m (21'4")

LWL 6.45m (21'2")

Beam 3.00m (9'10")

Draft 2.0m (6'7")

Displ to DWL 1050kg (2315lb)

Displ light 850kg (1874lb)

Ballast 320kg (705lb)

Waterplane area 8.75sq.m (94sq.ft)

Immersion rate 90kg/cm (504lb/inch)

Wetted surface 11.8sq.m (127sq.ft)

Sail area (main + jib) 40.6sq.m (437sq.ft)

Sail Area/Wetted Surface 3.43

Sail Area/Displ 40

Displ/length 109

Prismatic coef .54

Block coef .44

Fineness coef .67

Righting Moment @ 30 deg 835kgm (6040ft.lb)

Righting Moment @ 60 deg 1060kgm (7667ft.lb)

Righting Moment @ 90 deg 540kgm (3905ft.lb)

IG 8.62m (28'4")

ISP 11.62mm (38'1")

J 2.585m (8'6")

P 10.435m (34'4")

E 3.7m (12'2")

Mainsail 30.27sq.m (326sq.ft)

Solent Jib 10.33sq.m (111sq.ft)

150% Genoa 16.67sq.m (179sq.ft)



Pricing for our kit is not complete yet, but we should have prices posted soon. Please check back in the next week or so and pricing information should be available. Email me if you want me to send you a notice when I update this page with pricing information.

Didi Mini Mk 2 Options:

CNC cut Plywood Kit. $ 4,895 (Okuome 1,000 # 4' x 8' pallet)
(Price subject to change at time of quote. Okuome pricing has jumped over 20% since 8/1/2007)

Clear Western Red Cedar Stringers. $ TBD

Clear Wester Red Cedar for foils. $ TBD

Epoxy and fiberglass per the plan. $ TBD

Epoxy and fiberglass to cover hull. $ TBD

Pulpit, pushpit and stanchions. $ TBD

Deck Hardware kit. $ TBD

Aluminum rig and bow sprit. $ TBD

Carbon Fiber rig and bow sprit. $ TBD

Pricing information does not include plans, available directly from Dudley at www.dixdesign.com. All prices USD and are FOB our shop in League City, TX 77573. We will ship out side of the US but all Duties and Tariffs are the responsibility of the customer.

Sam 

Note: November 7, 2007.
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