science

Göppingen Gö 9

Göppingen Gö 9 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 Göppingen Gö 9 rather than just read about it. In short: The Göppingen Gö 9 was a German experimental aircraft built to investigate the practicalities of powering a plane using a pusher propeller located far from the engine and turned by a long driveshaft. Design and development In 1937, Claudius Dornier observed that adding extra engines and propellers to an aircraft in an attempt to increase speed would also attract a penalty of greater drag, especially when placing two…

Key takeaways

Göppingen Gö 9 belongs to science; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Göppingen Gö 9 to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Göppingen Gö 9 from memory before moving on to harder problems.

Reference excerpt

Design and development

In 1937, Claudius Dornier observed that adding extra engines and propellers to an aircraft in an attempt to increase speed would also attract a penalty of greater drag, especially when placing two or more engines within nacelles mounted on the wings. He reasoned that this penalty could be minimized by mounting a second propeller at the rear of an aircraft. To prevent tail-heaviness, however, the engine would need to be mounted far ahead of it. Dornier patented this idea and commissioned a test plane to evaluate it. The aircraft was designed by Dr Ulrich Hütter as a 40% sized, scaled-down version of the Dornier Do 17's fuselage and wing panels without the twin-engine nacelles, and built by Schempp-Hirth. The airframe was entirely of wood and used a retractable tricycle landing gear – one of the earliest non-Heinkel-built German airframe designs to use such an arrangement. Power was supplied by a Hirth HM 60 inverted, air-cooled inline four-cylinder engine mounted within the fuselage near the wings. Other than the engine installation, the only other unusual feature of the aircraft was its all-new, full four-surface cruciform tail, which included a large ventral fin/rudder unit of equal area to the dorsal surface. This fin incorporated a small supplementary tailwheel protruding from the ventral fin's lower tip that assisted in keeping the rear-mounted, four-blade propeller away from tailstrike damage against the ground during take-off and landing. The Gö 9 carried the civil registration D-EBYW.

Operational history Initially towed aloft, flight tests began in June 1941, but later flights operated under its own power. The design validated Dornier's ideas, and he went ahead with his original plan to build a high-performance aircraft with propellers at the front and rear, producing the Dornier Do 335. The test pilot was Henry H. W. Quenzler. The eventual fate of the Gö 9 is not known.

Specifications (Gö 9) Data from Die Deutsche Luftruestung 1933-1945 Vol.1 - AEG-DornierGeneral characteristics Crew: 1 Length: 6.80 m (22 ft 4 in) Wingspan: 7.20 m (23 ft 7 in) Gross weight: 720 kg (1,587 lb) Powerplant: 1 × Hirth HM 60 4-cyl. inverted air-cooled in-line piston engine, 60 kW (80 hp) Propellers: 4-bladed pusher propeller turned via an extension shaft Performance

Maximum speed: 220 km/h (140 mph, 120 kn)

Illustrations

Worked examples

Example 1 — a first encounter with Göppingen Gö 9

Start with the simplest possible case. Write down what Göppingen Gö 9 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 Göppingen Gö 9 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 Göppingen Gö 9 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 Göppingen Gö 9

In research: Göppingen Gö 9 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 Göppingen Gö 9 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: Göppingen Gö 9 is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1940s German experimental aircraft, Aircraft first flown in 1941, Cruciform tail aircraft, so understanding it makes those chapters shorter.
In everyday life: Look for Göppingen Gö 9 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.

Ask Teacher Smith questions about this articleOpens your AI tutor with a question about “Göppingen Gö 9” →

Affiliate

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

How to study Göppingen Gö 9 in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Göppingen Gö 9 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 Göppingen Gö 9 out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Göppingen Gö 9 in simple terms?

The Göppingen Gö 9 was a German experimental aircraft built to investigate the practicalities of powering a plane using a pusher propeller located far from the engine and turned by a long driveshaft. Design and development In 1937, Claudius Dornier observed that adding extra engines and propellers…

Why does Göppingen Gö 9 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 Göppingen Gö 9?

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 Göppingen Gö 9.