8mR Yacht Spazzo Specifications

Construction: Yacht & Bootswerft Josef Martin

Design: Juliane Hempel

Built: 1998

Sail number: 8 GER 10

Length overall: 13,44 m

LWL: 9,25 m

Beam max: 2.67 m

Draft max 1.98 m

Displacement: 8.2 t

Sail area, rated: 82 m²

Hull: Cold moulded mahogany, 7 layers, Epoxy vacuum technique.

Deck: Foam composite with teak top layer

Mast and boom: Aluminium, Speedwave - Proctor extrusion

Spinnaker pole: Carbon fibre, Speedwave

All blocks: Harken

Winches: Lewmar racing

Instruments: Tecnautic, Switzerland

Hydraulics by Speedwave: Mainsail outhaul - Fore stay - Mast step - Boomvang

Sails: North 3DL

Spazzo is a modern International 8-Metre yacht built to the design of Dipl. Ing. Juliane Hempel. The hull is the result of extensive tank testing at the University of Kiel, Germany. The yacht is uncompromisingly built to the highest standards using the best material available. The yard of Josef Martin is well known for their first class and impeccable quality of workmanship following generations of yacht building on the shores of Lake Constance.

Spazzo has been constructed according to the 1993 International Eight Metre Class Rating Rules in cold moulded mahogany. The construction followed the Lloyd's Register Rules for the construction of wooden yachts 1957 and the building survey and classification has been performed by Germanische Lloyd from Hamburg. (Reg. No. 92728)

Hull construction

Vacuum cold moulded construction using West System Epoxy resins. 7 Layers of diagonal mahogany, the last layer in carvel. The hull thickness depends on the position, on average 26,5mm. Underwater the hull has been additionally reinforced with 2 layers of biaxial glass and epoxy. The hull has been vacuum pressed. The keel is built from laminated mahogany and extra reinforced at the keel bolt area. Two strong laminated ring frames have been placed in the mast area. The shelf is built from light weight and defect free spruce. The bulkheads have been constructed from water boil proof plywood AW100. The load bearing bulkheads are 18mm, the light bulkheads are 10 and 12 mm.

Deck construction

The deck construction is a high tech foam laminate. The deck was vacuum laminated in a composite of:

  1. Underdeck 4mm 3-layer plywood
  2. 18mm Herex 80 hardfoam
  3. Top deck 4mm, 3-layer plywood
  4. Teak deck, 6mm bent strips

The deck beams are of light and defect free spruce, clear varnished. The bottom of the deck has been varnished high gloss white. The teak deck is finished with mahogany linings. The cockpit and stern are also in clean varnished mahogany.


The cockpit is not self draining and constructed in a light weight foam composite. Teak veneer walking floors combined elegance with excellent anti slip properties.


The coachroof is built from selected quarter sawn mahogany. Laminated construction ensures strength and minimum weight. The accommodation is to the minimum requirements, two fixed berths midships; in addition a light weight pipe berth is installed in the fore castle.

Keel and ballast

The keel is cast from antimon hardened lead. The keelbolts are in stainless steel 316. The trim flap is also cast in lead. The wings are laminated and ballast neutral.


Narrow and deep rudder following the latest developments. Constructed in glass fibre with reinforcements in AIMg Si1. The rudder has a core of Airex C70/90 hard foam. The rudderpost is made of glass fibre and has a Speedwave pendule bearing system.

Mast and rigging

Tapered aluminium mast made by Speedwave from a Proctor extrusion. Boom made by Speedwave, also from proctor extrusion. Double spreader arrangement with jumpers. Speedwave rod rigging. Speedwave hydraulic system for adjustment of boomvang, mainsail outhaul, mastfoot and fore stay. Carbon fibre spinnaker pole, oval and tapered section.