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Figure 21 Index head keeping model in place 
Figure 22 Holes separated by 120° It was found that the small hole at the end of the anchor leg for fluidisation was not wide enough to enable the model leg to easily sink into the sand. This was therefore altered to m5, m8 and finally m10 taps so screws could be fitted in if the hole would be blocked. When this still did not create a sufficient fluidisation, the hole was enlarged to 12 mm and finally 14 mm diameter. This enabled fluidisation, but it was not effective enough, since it was too centralised and additionally the anchor leg sucked up too much sand. A brief re-design of the leg led to three hoses along the sides to fluidise around the end of the model and blocking the fluidising hole. A filter made out of standard 40 denier tights was fitted to stop sand being sucked in. The final anchor leg model is shown in Figure 23 to Figure 25. Note that Figure 25 also shows a combination of jubilee clips and rope in a double hitch that were used to attach the leg to the load cell, enabling the engine hoist to pull it up from the sand. 
Figure 23 Anchor leg with three fluidisation hoses 
Figure 24 Cutouts in anchor leg end to secure fluidising hoses 
Figure 25 Filter around anchor leg Directory: shs shs -> Stonelaw Mathematics Department Green Course Revision Sheets Block E shs -> Core Classes Offered by Department Indicates ncaa clearinghouse Approved Core Class english shs -> Identify the prepositional phrases in the following sentences. Write them on a separate piece of paper shs -> Smart Phone Class Security and Safety shs -> Bordon Luciano shs -> 1 Week before Scheduled Contact shs -> Informative Research Essay Assignment shs -> 10th Daily “Fix It” Sentences shs -> The story of Perseus as told by Diodorus Download 11.38 Mb. Share with your friends:
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