Performance Propellers for Ultralight Flight by Aztec Paramotors
Performance Propellers for Ultralight Flight by
Aztec Paramotors
www.propellers.cc
(Also visit our main site at www.paramotors.info)
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Not more hurting your
wallet when you need a spare prop!! Now with permanent stock for fast delivey!! We have many designs props for all paramotor brands and sizes and if we don't have it send us your (half good) broken prop and we make you a brand new copy or just give us the size of the prop and the pitch you want and we make it for you. We also have propellers for ULM using the Rotax family or similar engines
Our propellers are made of many wood layers in the assembly, this ensure a very very tough construction and the best mechanic strength.
Price per paramotor
(PPG) propeller: $89 US dollars
Take
Notice:
Once you had selected your propeller, click on the proper shipping charge. For orders in outside this zones please contact us at props@paramotors.info
Pay it using
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Suggestions for the proper selection of your propeller: |
If you consider to change the propeller pitch: |
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1.- PLEASE NOTICE that we make clockwise and anticlockwise
turning propellers, normally all Cors-Air, Simonini, Zanzottera, and Solo
engines turn anticlockwise if seing from the back, and normally all Top-80 and
Raket engines turn clockwise. All propellers turning clockwise are
considered "REVERSIVE" and a "R" letter is print in
it's specification, for example the 49x22"R is a reversive propeller. 2.- In the specification of a prop the first number represent the lenght in inches and the second number represent the pitch or teorical travel of the propeller in each turn. For example a 50x19" prop means that the size of the prop is 50 inchs and for every turn it makes it will teorically travel 19 inchs, (this 19" travel is not really true in real life since the prop slips in the air but is a way to measure the pitch). Depending on the horsepower and reduction ratio of your engine you have to choose the proper size and pitch so your propeller turn as faster as possible but without passing the RPM's limit of your engine reducing your engine life. 3.- As a general rule the higher RPM's the engine runs the more horsepower it makes, specially in 2 stroke engines. So if you look for the best thrust try to select the larger prop that can fit your frame with the lowest pitch but without going too low on the pitch or your engine will be running too high on RPM's reducing it's life. 4.- If you want a propeller but you dont know the pitch you need please download this Excel spreadsheet and calculate the pitch of the current prop you are using. |
1.- In
the prop and pitch calculation you have to consider your reduction drive,
to calculate your reduction just divide the diameter of the big pulley (in
where you install the prop) between the diameter of the small pulley (that
is connected to the crankshaft of the engine). For example if you have a
reduction ratio of 1:3 with a certain engine and a friend has a 1:2 with
the same engine, you need a higher pitch prop than your friend even if
both use the same engine to compensate the reduction ratio. 2.- The best is to base your calculations according to the original prop and change to lower pitch only if you feel that your engine is running to slow on RPM's or change to a higher pitch if you feel that your engine is running too fast on RPM's. 3.- If you change the size of the propeller you have to change the pitch also, if you install a smaller propeller you will need a higher pitch propeller to compensate the loose of resistance because the smaller size. |
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