what does prop indication 22x6-10 mean?
03-26-2006, 04:24 AM
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what does prop indication 22x6-10 mean?
Hi, a while ago I bought a topflite 22x6-10. In fact I needed a 22x10 but it wasn't in store at that time. The seller said it was the same??? as a 22x10. I have the impression my plane ( a cap232 with zdz50ng) doesn't speed up as it should and the engine is howling.
Does anybody know what kind of prop it is. Topflite doesn't document the indication.
Thanks anyway.
Does anybody know what kind of prop it is. Topflite doesn't document the indication.
Thanks anyway.
03-26-2006, 07:23 AM
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RE: what does prop indication 22x6-10 mean?
Yes. your propeller is the size of a 22x6 at the hub and 22x10 at the tip.
It progresses from a 22x6 at the hub to a 22x10 at the tip.
The average then would be about the same as a 22x8. It will run faster than a 22x10
It progresses from a 22x6 at the hub to a 22x10 at the tip.
The average then would be about the same as a 22x8. It will run faster than a 22x10
03-26-2006, 09:04 AM
#3
RE: what does prop indication 22x6-10 mean?
FWIW:
props - should get thicker at the hub--as the pitch size number goes UP
example: a 22x6 is thinner than a 22x12
The "WHY?" is because the twist -in degrees- increases from the tip to the hub.
Obvious -
On the mixed number hubs- a given, thinner prop blank can be used -which saves on wood and keeps the prop fitting in the spinner cutouts..
that's good - makes things easier.
the not so good part is that typically the flex in the blade increases
also the drag along the inner section, of the blade increases.
On many applications and engines ,this is of little consequence.
look at high revving props which are designed for engines putting out a LOT of power.
The props are thick -even thicker than most and very stiff.
For many sport applications - again , makes little diffference .
for racing engine setups - it is important
For trying to extract the maximum performance for aerobatic types which also run into really higher rpm bands -the results should be and are usually better .
props - should get thicker at the hub--as the pitch size number goes UP
example: a 22x6 is thinner than a 22x12
The "WHY?" is because the twist -in degrees- increases from the tip to the hub.
Obvious -
On the mixed number hubs- a given, thinner prop blank can be used -which saves on wood and keeps the prop fitting in the spinner cutouts..
that's good - makes things easier.
the not so good part is that typically the flex in the blade increases
also the drag along the inner section, of the blade increases.
On many applications and engines ,this is of little consequence.
look at high revving props which are designed for engines putting out a LOT of power.
The props are thick -even thicker than most and very stiff.
For many sport applications - again , makes little diffference .
for racing engine setups - it is important
For trying to extract the maximum performance for aerobatic types which also run into really higher rpm bands -the results should be and are usually better .
03-26-2006, 09:47 AM
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RE: what does prop indication 22x6-10 mean?
Simply said, a 6-10 prop has 6" of pitch at the root, which progresses to 10" at the tip. This is supposed to make the prop more efficient.
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03-26-2006, 11:40 AM
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RE: what does prop indication 22x6-10 mean?
ORIGINAL: cuwaert
Hi, a while ago I bought a topflite 22x6-10. In fact I needed a 22x10 but it wasn't in store at that time. The seller said it was the same??? as a 22x10. I have the impression my plane ( a cap232 with zdz50ng) doesn't speed up as it should and the engine is howling.
Does anybody know what kind of prop it is. Topflite doesn't document the indication.
Thanks anyway.
Hi, a while ago I bought a topflite 22x6-10. In fact I needed a 22x10 but it wasn't in store at that time. The seller said it was the same??? as a 22x10. I have the impression my plane ( a cap232 with zdz50ng) doesn't speed up as it should and the engine is howling.
Does anybody know what kind of prop it is. Topflite doesn't document the indication.
Thanks anyway.
03-28-2006, 01:51 PM
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RE: what does prop indication 22x6-10 mean?
Thanks for the response, in the meantime I found an explanation on the Zinger site.
I think it's to flat for the cap because it induces a lot of rpm change in level tot vertical flight.
I had a fly-tec 22x10 on it and the zdz swung it at 6500, the topflite 6-10 wich is much larger at the tips only 6100 although in the air it seems to unload the engine.
I think it's to flat for the cap because it induces a lot of rpm change in level tot vertical flight.
I had a fly-tec 22x10 on it and the zdz swung it at 6500, the topflite 6-10 wich is much larger at the tips only 6100 although in the air it seems to unload the engine.
