Tartan 3700, Owner'S Manual

Page: 37 / 72

TartTarta
3.0 CONSTRUCTION
3.1 Hull
The hull of the Tartan 3700 is a single unit fiberglass molding which incorporates a specially
developed NPG/ISO gelcoated hull with a resin infused modified epoxy laminate. Alternating layers of
strand mat and mulit-­‐axial glass in modified epoxy resin are locally reinforced and cored with closed
cell synthetic foam in order to achieve an optimum balance of strength, stiffness and weight in the
laminate composite.
The construction process ensures the complete weaning of the laminate complex with minimal voids or
bubbles. Extra laminate is used in any area that would be subject to additional stresses. The exterior finish
consists of gelcoat molded into the fiberglass. The boot stripe is applied using PPG Concept Acrylic
Urethane while the cove stripe is a premium vinyl film. A synthetic foam core is sandwiched between the
laminate layers to add significant strength and stiffness properties to the hull, and yet ensuring that overall
weight is kept to a minimum. The strength/weight characteristic of the sandwich composite as well as
resistance to impact and abrasion is magnified by the use of multi-axial glass in the laminate.
3.2 Deck
The deck and cockpit, like the hull, is a single unit fiberglass molding with a gelcoat surface. A balsa
core is incorporated into the structure between the laminate layers for additional stiffness. A non-­‐
skid finish is molded into the working areas of the deck.
3.3 Hull / Deck Joint
The top flange of the hull is capped with marine adhesive sealant. The deck is then fitted and fastened
through the Teak or Aluminum toerail by means of stainless steel bolts. As the bolts are tightened, the
sealant is forced into exposed crevices. If a leak should ever develop in the hull / deck joint, the
through bolts may be tightened accordingly.
3.4 Rudder & Steering
The rudder is constructed of two molded composite shells, which are bonded together and injected
with two-­‐part foam for added strength. The rudderpost is carbon fiber with a reinforcing web
positioned within the rudder.
Wheel steering is standard. The pedestal system is a smooth operating wire rope; Edson steering
system. The pedestal manufacturer has provided maintenance instructions concerning the steering
system.