Project Loon is a project by Google to provide internet access using high-altitude balloons. In June 2013, Google launched a pilot test of 30 balloons from New Zealand to refine the technology. The balloons float in the stratosphere, twice as high as airplanes, and are carried by winds while special antennas on buildings connect people to the balloon network. The signal bounces between balloons and back to the global internet on earth. Project Loon aims to provide affordable, easy internet access to rural and remote areas using renewable energy sources like solar panels to power the balloons.

2. What is project Loon ?

4. THE PILOT TEST
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Project Loon start in june 2013.
30 balloons , launched from New Zealand’s South
Island.
Pilot testers will be used to refine the technology.

6. THE TECHNOLOGY
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Project Loon balloons float in the stratosphere as
twice as high as airplanes and the weather.
They are carried around the Earth by winds and
they can be steered by rising or descending to an
altitude with winds moving in the desired direction.
People connect to the balloon network using a special
internet antenna attached to their building.
The signal bounces from balloons to balloons then to
the global internet back on earth.

7. STRATOSPHERE
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Situated between 10 km and 60 km altitude on the
edge of space.
Air pressure is 1% of that at sea level.
Thinner atmosphere offers less protection from the
UV radiation and temperature caused by the sun’s
rays.

9. HOW LOON MOVES
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Winds in the stratosphere are generally steady and
slow-moving at between 5 and 20 mph and each layer
of wind varies in direction.
Project Loon users software algorithms to determine
where its balloons need to go, then moves each one
into a layer of a wind blowing in the right direction .
By moving the wind ,the balloons can be arranged to
form one large communications network.

10. HOW THE LOON MOVES

11. HOW LOON IS DESIGNED
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Envelope
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Solar Panels
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Equipment

12. Enevolope
Solar panels
equipment

13. ENVELOPE
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Envelope are made from sheets of polyethylene
plastic.
A parachute attached to the top of the envelope.

14. SOLAR PANELS
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Each unit’s electronics are powered by an array of
solar panels that sits between the envelope and the
hardware.
In full sun , these panels produce 100 Watts of
power enough to keep the running while also charging
a battery for use at night.
By moving with the wind and charging in the sun ,
Project Loon is able to power itself using only
renewable energy source.

15. EQUIPMENT
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A small box containing the balloon’s electronic
equipment.
This box contains circuit boards that control the system.
Radio antennas to communicate with other balloons and
with internet antennas as the ground.

16. HOW LOONG CONNECTS
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Each balloon can provide connectivity to a ground
area about 40 km in diameter at speed comparable to
3G.
Each balloons is equipped with a GPS for tracking
its location.

17. HOW LOON CONNECTS
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Three radio transceivers
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Balloon-to-balloon communication.
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Balloon-to-ground communication.
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The balloons use antennas equipped with specialized radio
frequency technology.
Project Loon currently uses ISM bands that are
available for anyone to use.

21. ISM BANDS
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The industrial , scientific and medical (ISM) radio
bands.
Radio bands reserved internationally for the use of
radio frequency (FR) energy for industrial scientific
and medical purpose other than communications.

22. ADVANTAGES
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Easy to use.
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Speed
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Increasing internet usage.

23. DISADVANTAGES
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Cost
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Maintenance
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Balloons can work for few week only.