biology

RTAF-5

RTAF-5 is a biology 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 RTAF-5 rather than just read about it. In short: The RTAF-5, officially designated B.ThO.5 (Thai: บ.ทอ.๕), is a Thai training and forward air control aircraft developed and built by the Science and Weapon Systems Development Centre of the Royal Thai Air Force in the 1980s. It was a twin-boom configuration aircraft powered by a single pusher turboprop engine, but only a single example was built.

Key takeaways

RTAF-5 belongs to biology; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect RTAF-5 to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of RTAF-5 from memory before moving on to harder problems.

Reference excerpt

The RTAF-5, officially designated B.ThO.5 (Thai: บ.ทอ.๕), is a Thai training and forward air control aircraft developed and built by the Science and Weapon Systems Development Centre of the Royal Thai Air Force in the 1980s. It was a twin-boom configuration aircraft powered by a single pusher turboprop engine, but only a single example was built.

Development and design In 1976, the Science and Weapon Systems Development Centre of the Royal Thai Air Force, based at Don Muang Air Base, Bangkok, started development of a trainer/forward air control aircraft, the RTAF-5. It was a single-engined high-wing monoplane of all-metal construction with twin booms, and with a fuselage resembling that of an OV-10 Bronco, but powered by a single Allison 250 turboprop engine at the rear of the fuselage. It had a retractable nosewheel undercarriage and had four underwing hardpoints, with wingtip fuel tanks. The prototype first flew on 5 October 1984, with the undercarriage fixed for early testing. Development was delayed by the license production of RFB Fantrainers by the RTAF, and was eventually abandoned, only the single prototype (which is preserved at the Royal Thai Air Force Museum) being flown, with a second example being used for static testing.

Specifications Data from Air International February 1986 General characteristics Crew: 2 Length: 9.96 m (32 ft 8 in) Wingspan: 9.55 m (3 ft 4 in) (Span over tip tanks 9.86 m (32 ft 3⅝ in) Height: 3.05 m (10 ft 0 in) Wing area: 15.67 m2 (168.7 sq ft) (including tip tanks) Empty weight: 1,645 kg (3,628 lb) Max takeoff weight: 2,154 kg (4,750 lb) Powerplant: 1 × Allison 250-B17-C turboprop, 313 kW (420 hp) Performance

Maximum speed: 333 km/h (207 mph, 180 kn) at 3,050 m (10,000 ft) (max cruise) Cruise speed: 296 km/h (184 mph, 160 kn) (econ cruise) Armament

Hardpoints: 4 with a capacity of up to 68 kg (150 lb) on inner, 100 lb (45 kg) on outer

Illustrations

Worked examples

Example 1 — a first encounter with RTAF-5

Start with the simplest possible case. Write down what RTAF-5 claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In biology, 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 RTAF-5 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 RTAF-5 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 RTAF-5

In research: RTAF-5 appears in biology 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 RTAF-5 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: RTAF-5 is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1980s Thai military trainer aircraft, Aircraft first flown in 1984, Aircraft with retractable tricycle landing gear, so understanding it makes those chapters shorter.
In everyday life: Look for RTAF-5 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.

Affiliate

Preply — study more efficiently by working with a personal tutor. 50% off.

How to study RTAF-5 in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what RTAF-5 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 RTAF-5 out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is RTAF-5 in simple terms?

Why does RTAF-5 matter?

Because it connects several biology 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 RTAF-5?

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 RTAF-5.