Our good friends at Saratoga Rowing Association came to us with a challenge:  Their Swift 4x had crashed into a dock at speed and ended up doing its best bow-as-accordion imitation.  We took it on and repaired 2 feet of the bow to like new condition.

bow repair: The shattered hull of Saratoga Racing Association's Swift Quad after it hit a dock at speed.

The shattered hull of Saratoga Racing Association’s Swift Quad after it hit a dock at speed.

bow repair: Aligning bow piece and hull with a laser, straight edge and fairing battens - Swift Quad Bow Replacement

We set up a rigid station to hold the salvaged bow piece. We bedded it in fast dry compound to precisely locate it with the aid of a laser, a straight edge, accurate measurement and fairing battens.

 

bow repair: The hull and bow piece was aligned with a laser. Swift Quad Bow Replacement

A view of the bow piece with the laser running right down the center clamped by stiff battens on either side

bow repair: Swift Quad Bow Replacement - Battens are used to align the foredeck with the bow section.

This photo shows the point where we cut off the damaged section of the bow. Our job is to fabricate a new foredeck and hull section between this point and the small bow section in the previous photo.

bow repair: Swift Quad Bow Replacement - Foredeck and Bow Aligned by Long Battens to Capture Deck Curvature.

Although it appears straight from the angle in this photo the shear line is curved. Long fairing battens are the only way to capture that curvature, which will show up in the finished image below.

bow repair: Swift Quad Bow Replacement - Building Form

Peter builds a temporary external hull form with 1/4″ cedar strips to lay up a new hull.

bow repair: Swift Quad Bow Replacement-External Form To Build Missing Port Hull Section

This is a view of the completed temporary hull form that accurately captures the shape of the missing port side hull section.

 

bow repair: Swift Quad Bow Replacement - Kevlar Outer Skin and Unidirectional Carbon Fiber

This is a closeup of the reconstruction of the Kevlar outer skin and unidirectional carbon fiber at the sheer.

bow repair: Swift Quad Bow Replacement -The Kevlar outer skin overlapping the existing hull.

The Kevlar outer skin overlapping the existing hull.

bow repair: Swift Quad Bow Replacement - Deck Core

The required missing deck core was made with some red cedar (~1.5oz) to complete the missing bow section. An homage to shells of yesteryear.

bow repair: Swift Quad Bow Replacement - Fairing Compound has been applied to new laminate - Skillful batten sanding & bow takes shape

Fairing compound has been applied to the new laminate. Skillful batten sanding is done and the bow replacement takes shape.

bow repair: Repace Swift Bow: Finished - new curved deck shear lines are perfectly fair.

Finished: the new deck’s curved shear lines (the angle formed by the deck and hull), now covered with black tape are perfectly fair.  Clean, fair sight lines are the true test of quality workmanship.

bow repair: Swift Quad Bow Replacement - Finished

A side view of the Swift Quad’s finished bow showing a clean, gracefully curved hull centerline.