science

Slingsby Grasshopper

Slingsby Grasshopper 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 Slingsby Grasshopper rather than just read about it. In short: The Slingsby T.38 Grasshopper is a British primary training glider built by Slingsby Sailplanes for the Royal Air Force. Development The design is based on the pre-World War II German SG 38 Schulgleiter, modified to use the wing design of the Slingsby T.7 Kirby Cadet glider.

Key takeaways

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

Reference excerpt

The Slingsby T.38 Grasshopper is a British primary training glider built by Slingsby Sailplanes for the Royal Air Force.

Development The design is based on the pre-World War II German SG 38 Schulgleiter, modified to use the wing design of the Slingsby T.7 Kirby Cadet glider. The design was cheap to manufacture and was designed to be stored dismantled. The type was used by Air Training Corps Squadrons between 1952 and the late 1980s. The RAF designated the glider the Grasshopper TX.1, and the first order was for 65 aircraft, which were delivered in 1952 and 1953. It was later followed by two further orders for an additional 50 aircraft; the final delivery was made in 1963. Launch is achieved through the use of a V-shaped bungee or elastic rope pulled by a team of helpers. The glider can also be mounted on a pivoting tripod pointed into wind for the demonstration of controls. The Grasshopper is virtually identical to the EoN Eton.

Operators United Kingdom Royal Air Force

Specifications (Grasshopper TX.1) Data from British Gliders and Sailplanes 1922-1970General characteristics Crew: 1 Length: 20 ft 8 in (6.3 m) Wingspan: 39 ft 0 in (11.88 m) Height: 8 ft 0 in (2.43 m) Wing area: 173.9 sq ft (16.16 m2) Aspect ratio: 8.73 Airfoil: Göttingen 426 Empty weight: 293 lb (132.9 kg) Gross weight: 550 lb (249.5 kg) Performance

Stall speed: 30 mph (48 km/h, 26 kn) Never exceed speed: 80 mph (129 km/h, 70 kn) Wing loading: 3.10 lb/sq ft (15.13 kg/m2)

Illustrations

Worked examples

Example 1 — a first encounter with Slingsby Grasshopper

Start with the simplest possible case. Write down what Slingsby Grasshopper 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 Slingsby Grasshopper 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 Slingsby Grasshopper 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 Slingsby Grasshopper

In research: Slingsby Grasshopper 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 Slingsby Grasshopper 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: Slingsby Grasshopper is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1950s British military trainer aircraft, Aircraft first flown in 1952, Glider aircraft, so understanding it makes those chapters shorter.
In everyday life: Look for Slingsby Grasshopper 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 Slingsby Grasshopper in 20 minutes

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

Frequently asked questions

What is Slingsby Grasshopper in simple terms?

The Slingsby T.38 Grasshopper is a British primary training glider built by Slingsby Sailplanes for the Royal Air Force. Development The design is based on the pre-World War II German SG 38 Schulgleiter, modified to use the wing design of the Slingsby T.7 Kirby Cadet glider.

Why does Slingsby Grasshopper 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 Slingsby Grasshopper?

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 Slingsby Grasshopper.