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Single pull macgregor type hatch cover.pdf - Cochin University of ...

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Height from the deck: 7.2cm<br />

Height to the first cross bar: 3.2cm<br />

Gap between bars: 4cm<br />

Cross bar diameter: 0.4cm<br />

5.2 MATERIAL SELECTION<br />

The material was selected according to the availability in the market and for the easy<br />

fabrication process. The material was also chosen by considering economic limits.<br />

After all discussions with the team members and project guide, for the successful<br />

fabrication <strong>of</strong> the model the team decided to choose the following materials:<br />

Cargo hold : Ply Wood<br />

Hatch Coaming : Wood<br />

Hatch Stay : Wood<br />

Pantoons : Wood<br />

Sliding Wheels : Plastic<br />

Balancing Wheels : Mild Steel<br />

Chain : Metallic<br />

Chain Connector : Galvanised Sheet<br />

Track : Aluminium<br />

Rising Track : Mild steel<br />

Rope : Iron<br />

Track Support : Cast Iron<br />

Motor Casing : Ply Wood<br />

Pulley : 2 Plastics, 2 Copper<br />

Supports : Steels & Aluminium<br />

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