science

Sandeq

Sandeq is a science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Sandeq rather than just read about it. In short: A Sandeq is a type of outrigger sailboat or trimaran used by the Mandarese people for fishing and as a means of transportation between islands. The size of Sandeq varies, with hulls ranging from 5 to 15 metres (16 to 49 ft) long and 0.5 to 1.5 metres (1 ft 8 in to 4 ft 11 in) wide.

Key takeaways

Sandeq belongs to science; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Sandeq to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Sandeq from memory before moving on to harder problems.

Reference excerpt

A Sandeq is a type of outrigger sailboat or trimaran used by the Mandarese people for fishing and as a means of transportation between islands. The size of Sandeq varies, with hulls ranging from 5 to 15 metres (16 to 49 ft) long and 0.5 to 1.5 metres (1 ft 8 in to 4 ft 11 in) wide. Its carrying capacity ranges from a few hundred kilograms to over 2 tons. The sleek shape of the Sandeq makes it more agile and faster than other sailboats. The name of the vessel comes from a word in the Mandar language that means pointy, referring to the bow's shape. This boat is a well-known piece of maritime cultural heritage to the Mandarese people in West Sulawesi, Indonesia. Before the use of outboard motors, the Sandeq was one of the dominant means travelling between islands of the archipelago, not only because of its smoothness and speed, but also thanks to its ability to sail close-hauled almost directly against the direction of the wind. The zig-zag technique called beating in English is called Makkarakkayi in the Mandar language. Although Mandarese seafarers have developed many types of boats, both big and small, the Sandeq is the only fully wind-powered vessel that is still commonly used in West Sulawesi today. The two smaller outrigger hulls serve to balance the vessel, which relies on the wind force captured by the triangular sail. The Sandeq can reach speeds of up to 15 to 20 knots (28 to 37 km/h; 17 to 23 mph). A Sandeq is also able to survive the wind and waves while chasing a herd of tuna. During the fishing season, skippers use Sandeq to trap eggs from a series of coconut leaves and seaweed. The Sandeq can also be used to collect spices from Ternate and Tidore to be delivered to the city of Makassar. Every year, a Sandeq race is held in mid-August. The route from Mamuju, West Sulawesi to Makassar, South Sulawesi covers a distance of 300 nautical miles (560 km; 350 mi).

Type of Sandeq Sandeq pangoli: Used to catch fish near the reef edge and in the region where currents meet by dragging lure made of chicken feathers behind the boat (mangoli). This type of boat is very fast and agile and able to reverse its course quickly in order to hunt fish and not hit by coral. Sandeq parroppo: Used for fishing in rappo/rumpon (FAD) in the open sea; this type of boat is big enough so that (1) it can load two or three canoes that will be unloaded in rumpon to expand the catching area, (2) sailors can carry shipping supplies that last for two to five days, (3) the boat can withstand big waves and strong winds in the open sea. Sandeq potangnga: Used to sail the high seas to catch fish and searching for flying fish and their eggs. The type of boat is large in order to be able to load provisions and equipment needed in navigating the ocean for two or three weeks, especially sufficient salt to conserve the fish. In order that the high waves that are usually found in fishing areas will not have the chance to disturb and wet the anglers, this type of sandeq often had additional platform that are higher than the hull deck of the boat, mounted at the left and right side, behind the mast.

See also Kora kora Balangay Lepa (ship) Paduwang Bago

References

Further reading Horridge, Adrian (2015). Perahu Layar Tradisional Nusantara. Yogyakarta: Penerbit Ombak. An Indonesian translation of Horridge, G. Adrian; Snoek, Chris (1985), The prahu : traditional sailing boat of Indonesia (2nd ed.), Oxford University Press, ISBN 978-0-19-582637-1 Liebner, Horst H. (2005), "Perahu-Perahu Tradisional Nusantara: Suatu Tinjauan Perkapalan dan Pelayaran", in Edi, Sedyawati (ed.), Eksplorasi Sumberdaya Budaya Maritim, Jakarta: Pusat Riset Wilayah Laut dan Sumber Daya Nonhayati, Badan Riset Kelautan dan Perikanan; Pusat Penelitian Kemasyarakatan dan Budaya, Universitas Indonesia, pp. 53–124

Illustrations

Worked examples

Example 1 — a first encounter with Sandeq

Start with the simplest possible case. Write down what Sandeq claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Sandeq before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Sandeq ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Sandeq

In research: Sandeq appears in science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Sandeq in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Sandeq is common in secondary-school and first-year university syllabi. It links to neighbouring topics Austronesian ships, Boats of Indonesia, Indonesian inventions, so understanding it makes those chapters shorter.
In everyday life: Look for Sandeq outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study Sandeq in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Sandeq means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Sandeq out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Sandeq in simple terms?

Why does Sandeq matter?

Because it connects several science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Sandeq?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Sandeq.