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Rabu, 14 November 2012

Fish Boat Lines plan depiction



Fish Boat Lines plan depiction

Object of this study in the form of traditional wooden fishing boats where the manufacture is not use an image kerja.Dikatakan very important, because until now the traditional ships or boats are traditionally built generally done based on traditional patterns.
From various sources it was found that the craftsmen work not based on the traditional boat pictures work / techniques, they work by instinct they have for generations of their ancestors.
In order to calculate the power or the power of an engine is necessary fishing boat lines plan drawing of the ship. Because of the image will be used to determine the amount of power / engine specification is used, the specification of the propeller, and the interaction badang boats and propellers.

The purpose of this activity is to get the ship in the form of line drawings plan and a traditional fishing boat body plan. Taking measurement data is done manually with simple tools in the hope of the craftsmen of traditional boats could easily do so.

From observations in the field, it was decided not to take the data size hull form Dernaga fish in the area, for the following reasons:
1. Detailed shapes CARENA (hull submerged in the water) does not appear, so to see whether or not a characteristic form CARENA should be done under the observation of the water, that is by diving.
2. If done diving, then there is coordination difficulties between divers (in this case the officer who made the observations and measurements) with the registrar on land or in the boat, as it required a special communication tool.
3. In addition, because in the dock area - where the activities of loading and unloading takes place, then the measurement of potentially disruptive activities of loading and unloading activities very large.
4. The boats are usually lean meetings with each other on the dock, so the measurements are not free and even the risk of pinched ships are very large.

From some of these limitations, the data retrieval hull shape size fish in this study to be done on the beach, measurements can only be done in a quick and brief that at low tide.
Conditions sloping beach, do not look any special treatment to the area / land used as a shipyard, for example: leveling, compaction, soil hardening, and so on. Beaches used as-is (naturally) except a bit of cleaning the couch.
On the beach, fishing boats tethered-row lined with ship longitudinal direction perpendicular to the shore with the bow facing the sea (Figure).
Although the coastal land is left as it is, the base line (the baseline) actually kept the ship in a horizontal position, so that the keel laying is beginning a very important ship building (Figure).

Phase Vessel Width Measurement (Form Station - Photo)
1. Determining the reference line (base line) was taken as high as the flat keel, the reference line is drawn under the assumption that the ship even keel.
2. The curvature of the station expressed by a number of points. The number of points depends on the complexity of the form station. The sharper curvature of the curve station needs more point mark. Width given by x1, x2, x3, and so on until Xmax, while highly expressed by y1, y2, y3, and so on up to ymax.
3. Width station (x) measured from the outside of the hull, it is the sheer ease of measurement considerations in the field.
Stages Aft Ship Shape Measurement (Photo)
1. Specifies the zero point at the stern of the ship which is then assumed to be the location of Linggi stern or after perpendicular (AP).
2. Measure the length of the ship from the AP to the bow of the ship, measured to the leading end of the boat (la).
3. Having obtained the long-la, then do (la ') to facilitate the work on the ground, when he divided into ten. This division is intended to determine the location of the station. Each length is marked with chalk on the keel.
4. Can measure the length of part (niche stern) of the AP to the back, measured to the extreme rear of the ship (lb).
5. As with la, lb were rounded to facilitate work in the field, ie when lb 'is divided into three (). If the part can be felt more complex form, the division could be more than three (four, five, and so on.). As with the determination of the station on the main part, the division is to determine the location of the station on a part can.
6. Getting ship shape contour extends from the AP to the next. Measure the height from the base line at the points that have been marked as the location of the station. Assumed to ship even keel, so that base line coincides with the top of the flat keel. (See figure: h1, h2, h3, until h10, and the tip hf).
7. Contour shapes can get part of the AP to the back end. Measure the height from the base line at the points that have been marked as the location of the station on a part can (starting from HK, ha, hb, and hc until the hA).

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