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| PPG
BUYER’S GUIDE |
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While
the paragliding world seems to have reached its peak concerning
number of pilots, we see how the Paramotor community grows
and get stronger. The demand for new aircrafts increases,
new manufacturers start in the business, and also new ways
to understand PPG flying appear, new ideas, new materials,
and, in general, new improvements that make our activity
easier, safer and more fun.
In our young, dynamic and evolving sport there
are just so many different options that a ‘normal’
pilot can get easily confused. To help make things a bit
clearer is what inspired us to organize the testing event
–Ojovolador PPG Comparison 2006- and from the information
so collected, build this PPG Buyer’s Guide. This Guide
is a free resource for all you pilots out there who want
to understand our paramotors a bit better, and we hope it
will also be a good help when the time to choose your new
dream machine comes…
This Guide comes as direct consequence of the PPG
Comparison organised by our online-magazine in May of
2006, in which we tested 24 paramotors from 8 manufacturers
(read some conclusions of the PPG
Comparison here). Nevertheless, in this section of TheFlyingEye.com
we will continue adding information about new PPG units
that we may have the chance to fly and test, in addition
to useful advice and explanations for improving our understanding
and knowledge of our airships.
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| IMPARTIALITY |
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We
tried to be as objective and impartial as possible, and for
that reason we followed standard procedures to apply carefully
chosen tests that resulted in measurable and comparable parameters,
such as weight, noise, thrust or consumption. All the tests
were done using high-precision instruments.
Nevertheless,
there are many aspects difficult or impossible to control
that may affect the paramotor’s performance and introduce
slight variations in the readings –like
temperature, atmospheric pressure or humidity. Even human
factors, both coming from our team or from the participating
manufacturers, could have introduced slight deviations in
the results. These results are not absolute and must not be
taken as so –but they say a lot about each tested PPG
and help compare them among each other.
All
this said, we believe that these results are a completely
valid reference of each paramotor that participated
in our tests. |
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| More,
I want more..!
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Without
a doubt, we’d have liked to evaluate other parameters
as well, like the engine’s torque or the solidity
of the cage, but we think that maybe in a future –if
we ever do a new PPG Comparison- we will incorporate new
tests.
Also
we want to make clear that one of the most definitive parameters,
as it is the feeling in flight for the pilot, was not included
in our tests because it is too subjective an assessment
–there are just as many ways to understand flying
as there are to enjoy it!
Our
opinion on the matter: Every pilot should test fly
a paramotor before buying it.
This Guide was conceived as an aid so that you don’t
have to test 20 paramotors but focus on the 3 or 4 that
really seem like the best options for you –and decide
once you have test-flown them.
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| Before
you read the Results |
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During
the PPG Comparison we learned more about paramotors than in
all our years of flying. Overall, we have confirmed the idea
that there is one ideal paramotor for every type of pilot,
and before you rush to check only one of the many parameters
listed in this Guide we’d recommend you to read our
comments below, and try to see what each PPG offers as a whole.
A well-balanced machine, even if it doesn’t excel in
any of the tests, will probably be a better choice than a
“winner” in one that is not consistent in other
aspects.
A paramotor is much more than just thrust or power. Before
you start, prepare a list of the relevant features
FOR YOU in a paramotor, and focus on them. Some tips:
- If you are a small pilot you should center
your attention on the units with a medium size cage that are
not heavy; check out the “Standard” category.
- In general, noise is bad for your health
and for the popularity of our sport –mind this.
- If you are a ‘big boy’ forget the standard paramotors
and go to the "Heavy" or "Super Heavy"
categories.
- Pay attention to details like the size
of the fuel tank and if it is an easy to transport machine
–all the tech data of each unit will be published here
shortly with plenty of pictures that will give you a very
precise idea of what to expect from these paramotors.
Below, you will see some of our conclusions; we recommend
you to read them carefully before checking the results on
the tables, in order to really understand how every number
would actually translate in real flight.
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This
is perhaps one of the most important parameters. We measured
noise at the pilot’s head level, that is to say, more
or less what a pilot would listen if he was not wearing a
helmet... Most of the paramotors exceeded
95 decibels in cruise flight, and we must note that
the World Health Organization considers that prolonged exposure
to more than 80 db entails risks of hearing injuries. From
the results we see that there is still a lot to work on this
subject. The exhaust is not the only source of noise: the
admission and even the propeller tips can produce very annoying
noises.
We
would like to remind you all flying mates that there are good
helmets with noise reduction in the market,
which can lower between 30 and 40db in the noise that goes
into your ears. To get an idea of the noise levels: 50 db
are produced in a normal conversation. The human ear suffers
every db after 100db. *See the reference table of noise levels
on the left.
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Noise

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Thrust
is unquestionably relevant to our machines, but we must consider
a number of issues related to power. A linear curve
of power means that the paramotor does not have jumps
in the delivery of power, which will make it easier to keep
at level flight or to reach a steady ascent rate.
This also has direct effects on the consumption,
which is just as important to consider. If we can keep the
engine at level flight and regular RPMs, then the consumption
also stays regular. If, on the contrary, we have to control
sudden jumps in the power the fuel consumption rises.
We
took the time to make the power curve for
each paramotor tested, i.e., the relation between RPM and
thrust, and we will include it in the technical details page
of each paramotor very soon. We must make a special mention
to the instrument Quest XC, specially designed
for PPG flying, which we used to measure consumption of each
PPG unit at maximum thrust and rpm and at a fixed thrust equivalent
to "level flight" –and to register the atmospheric
conditions during every test. We were lucky to count on the
personal support from the creators of the instrument,
Paul and Tim from Active Flight Systems, who were
there to make sure that the consumption tests were accurately
done with their specially designed system connected to the
Quest XC. The data and graphics provided by the instrument
and its analysis software will also be included in the technical
info for each paramotor (as soon as we can!)
Finally,
let’s keep in mind that engines that normally work at
higher RPM also suffer more wear since the piston works in
the cylinder at higher speeds and, in theory, have a shorter
lifespan. |
Thrust,
Power curve, Consumption and RPM


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The
categories
We classified the PPG units in different categories based
on the recommended pilot weight. Unfortunately we could not
measure any in the ‘light pilot’ category, up
to 65 kg. Apparently the demand in general aims at "over-power"
and on this matter we remember the old aviation belief that
power is never in excess, which really does not apply exactly
to paramotoring: Please remember that an excess of power without
enough qualification can be dangerous, as there is more torsion
and piloting is more complicated –you must control the
power.
The best thing is to have the right thrust
for each pilot’s weight –enough to have good take
offs even with a reflex wing or to climb comfortably in all
conditions, but not exceeding your abilities and weight.
The
STANDARD category, for
recommended pilot weight of 80kg, is the most popular and
the largest in number of PPGs tested: 10
The
HEAVY Category, for recommended
pilot weight of 100 kg, had 7 representatives and at least
2 motors of this category are suitable for tandem flights
Paramotors
in the SUPER HEAVY class
are aimed at pilots weighing 125Kg and more, and most of them
are good options for tandem flights. Here we had 7 PPG units.
You
will find the tests results for each paramotor under the different
categories in the menu.
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Paramotor manufacturers in the PPG Comparison:






Who
is who?
The
team working at the Ojovolador testing lab

Daniel:
General
Direction


Special Guests: Paul and
Tim from
Active Flight System

In the controls:
Roman and Alfonso.

Tito:
Preparing the PPGs for the tests; Claudio (Heidel.com.ar),
filling up the data reports

Manel
(Volager)
preparing the PPGs

Paco Díaz:
A very special thank you to Paco, who took care of the shows in
the festive side of the PPG Comparison and also built the test bench
equipped with a high precision dynamometer. On top of all, he gave
us free use of his Trikes worshop (Airges.info)
that was a perfect place for our testing laboratory during the PPG
Comparison.
Many
thanks to all
the wonderful people who helped us with this PPG testing event!
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