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1 of 16FloaTEC’s Ring ™ Spar - An Overview

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2 of 16Ring ™ Spar Advantage

The Ring ™ Spar design provides for very cost effective construction.

It is a robust and safety conscious design with lighter and fewer piecesthan a hard tank in conventional truss spar.

Its construction friendly concept enables innovative constructiontechniques that save time and money.

The maturity of the design is well advanced. Finite Element Analysis(FEA) has been performed on numerous load cases and detailed structuraldrawings have been developed.

EA Mode l

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3 of 16Ring ™ Spar Advantage

Improved safety

Increased shop assembly

Large open top sections for ventilation, crane access

Fewer compartments to access during operating life

Less air work during assembly on skidways

Retains hydrodynamic characteristics of 13 proven

Truss Spar designsTested, calibrated, proven hydrodynamic form;

Exterior looks and acts the same

Focus on enhanced constructability

Simplified framing patterns

Easier fit-ups

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4 of 16Ring ™ Spar vs. Traditional Truss Spar – Key Features of “Hard Tank”

Centerwell

Circular vs. square

Flats

Simplified vs. complex

Compartmentation

Flats vs. radial bulkheads

Girders

Vertical girders vs. ring girders

Struts

Eliminated vs. over 100

Longitudinal stiffening

Members don’t penetrate flats vs. penetrates

flats

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5 of 16Ring ™ Spar vs. Traditional Truss Spar – Key Features (cont’d)

Hard tank assemblyHalf modules under roof vs.

quadrants erected outdoors

Vertical vs. horizontal assembly of

circular sections

Repetitive vs. highly varied framing

patterns

Hard tank piece count

Up to 30% fewer pieces

Hard tank fabricated weight

Up to 10% lighter

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6 of 16Ring ™ Spar Hard Tank Framing Scheme – One Full Module

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7 of 16Ring ™ Spar Hard Tank Framing Scheme – Outer Shell Stiffening

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8 of 16Ring ™ Spar Hard Tank Framing Scheme – Centerwell Stiffening

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d k h l

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10 of 16Ring ™ Spar Hard Tank Framing Scheme – Section Between Flats

Typical Ring FramesBetween Flats

Traditional

Truss Spar

Typical SectionBetween FlatsRing ™ Spar

Ri S H d T k A bl S J i i Ri O Skid

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11 of 16Ring ™ Spar Hard Tank Assembly Sequence – Joining Rings On Skidways

Join

Vertically

Roll Pair &

Slide Together

Transport

To Skidway

fT diti l T S C t ti P i T Fit Q d t S ti

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12 of 16Traditional Truss Spar Construction – Preparing To Fit-up Quadrant Section

13 f 16Ri g S A i t d F b i ti S

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13 of 16Ring ™ Spar Animated Fabrication Sequence

In the workshop….

14 of 16Ring Spar Animated Fabrication Sequence

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14 of 16Ring ™ Spar Animated Fabrication Sequence

In the assembly area….

15 of 16Ring Spar Animated Fabrication Sequence

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15 of 16Ring ™ Spar Animated Fabrication Sequence

Truss installation and

loadout and tie downpreparations….

16 of 16Ring Spar Advantage

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Ring ™ Spar Advantage

In the field….