science

Two Eagles Balloon

Two Eagles Balloon 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 Two Eagles Balloon rather than just read about it. In short: The Two Eagles Balloon is a custom balloon designed to break world records. A January 2015 launch from Japan toward North America has officially broken two world records as validated by the Fédération Aéronautique Internationale.

Key takeaways

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

Reference excerpt

The Two Eagles Balloon is a custom balloon designed to break world records. A January 2015 launch from Japan toward North America has officially broken two world records as validated by the Fédération Aéronautique Internationale.

Development The balloon was developed by a crew which included members of Steve Fossett's Spirit of Freedom balloon crew. The balloon was initially developed for a 2005 and later 2008 flight attempt by Troy Bradley using the name Celestial Eagle with a crew including Tim Cole, Bert Padelt and John Kugler. The launch 2008 attempt from Japan was canceled due to weather that would have placed the balloon in storms off California and jet streams which may have altered path to Alaska.

Design The 100 kg Kevlar-Carbon fiber capsule was built by Composite Tooling in Albuquerque, New Mexico. The 7ftx5ft capsule carries 10,000 lb in ballast. The gondola is outfitted with a wide angle GoPro camera. The unpressurized cockpit requires pilots to use supplemental oxygen above 12,000 ft altitude. The insulated gondola temperature is expected to have an operating temperature of 50 degrees F. Members of the Cognitive Engineering Research Institute in Mesa, Arizona will study fatigue effects during the record-attempting flight. To slow down for landing, ropes will be dropped into the ocean to create drag prior to a planned landing on a sand dune. Lower sections of the gondola can be flooded with water for stability in a water landing.

Operational history January 25, 2015 - Pilots Troy Bradley of the United States and Leonid Tiukhtyaev of Russia launch from Saga Prefecture, Japan on a record setting attempt. The initial planned route sets a landing spot in Canada. The Anderson-Abruzzo Albuquerque International Balloon Museum is used as mission control for the attempt. January 2015 - The Two Eagles Balloon broke the unofficial world record for distance traveled in a gas balloon, exceeding 5,260 miles set by the Double Eagle V. 29 January 2015 - The planned landing location shifts to Baja, Mexico. January 30, 2015 - The unofficial record for time aloft in a gas balloon of 137 hours, 5 minutes and 50 seconds set in 1978 by the Double Eagle II is exceeded by the Two Eagles Balloon team. The Two Eagles crew landed the balloon in the ocean four miles off the Baja coast on 31 January 2015. The time aloft was six days, 160 hours and 37 minutes with 6,656 miles traveled. July 15, 2015 - FAI ratifies record attempts. Official time aloft is 160 h 34 min, distance is 10,711.6 km.

Specifications Data from Two EaglesGeneral characteristics Length: 141.6 ft (43.2 m) Diameter: 91.6 ft (27.9 m) Volume: 350,000 cu ft (9,900 m3) Empty weight: 1,475 lb (669 kg) Useful lift: 14,500 lb (6,600 kg) Performance

Endurance: 10 days

References

Further reading Double Eagle II Double Eagle V

External links Two Eagles web site Two Eagles launch in Japan YouTube article Special report about the flight Leonid Tiukhtyaev and Troy Bradley on Two Eagles Balloon

Worked examples

Example 1 — a first encounter with Two Eagles Balloon

Start with the simplest possible case. Write down what Two Eagles Balloon 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 Two Eagles Balloon 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 Two Eagles Balloon 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 Two Eagles Balloon

In research: Two Eagles Balloon 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 Two Eagles Balloon 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: Two Eagles Balloon is common in secondary-school and first-year university syllabi. It links to neighbouring topics Balloons (aeronautics), so understanding it makes those chapters shorter.
In everyday life: Look for Two Eagles Balloon 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 Two Eagles Balloon in 20 minutes

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

Frequently asked questions

What is Two Eagles Balloon in simple terms?

Why does Two Eagles Balloon 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 Two Eagles Balloon?

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 Two Eagles Balloon.