Found list of prop descriptions somewhere.......

[Steven Vaccaro]

Anyone care to comment or expand on these?

octura prop descriptions.

X4 are low lift general purpose props
M4 is similar to X4 but with the tongues removed to unload the prop
Y are similar to X series but have 10% more pitch
X5 are similar to X4 with medium lift and more pitch
X6 similar to X4 and X5 with medium-high lift
14 are medium-high lift commonly used for hydros
16 are high lift props for riggers and hydro's
17 are the highest lift prop for riggers and hydros
P7 are similar to 17 series but more rake and slightly less lift
19 are high lift for riggers and hydro's
V9 are moderate lift and high pitch suitable for riggers, hydros and SAW racing
20 are moderatley high lift with high pitch suitable for riggers and hydros
21 are high lift for riggers and hydro's
22 are high lift, highest pitch surface drive only good straight line speed

[properchopper]

Good find. Answers some questions I've always had. Archive this pleez:thumbup1:

[m4a1usr]

Should also ad the 12 series although those are submerged props. Plus there are the Octura decimals like the 1.25 and such although they are almost unheard of any more.

John

[domwilson]

Should also note that these are for Octura props.

[canjohn]

love this list!!now if we could find the same for graupner,prather,+grim-racer props we`d all be better off.thanks for the list......canjohn.

[drwayne]

This is the most comprehensive I have found.

sorry for the size..4.62Mb.. as pdf (http://users.tpg.com.au/pcapps//nlr-propchart.pdf)

[NativePaul]

You have X6xx down as "medium-high lift" the same as 14xx, I would say X6xx is much lower lift in comparison to the 14 series.
You could also add N9xx low blade area, medium lift, high pitch.

[jcald2000]

drwayne,
Great chart, can any one convert this to Excel sheets???

[drwayne]

drwayne,
Great chart, can any one convert this to Excel sheets???

Life must be difficult without fingers... :smile:

[Stephavee]

Anyone care to comment or expand on these?

octura prop descriptions.

X4 are low lift general purpose props
M4 is similar to X4 but with the tongues removed to unload the prop
Y are similar to X series but have 10% more pitch
X5 are similar to X4 with medium lift and more pitch
X6 similar to X4 and X5 with medium-high lift
14 are medium-high lift commonly used for hydros
16 are high lift props for riggers and hydro's
17 are the highest lift prop for riggers and hydros
P7 are similar to 17 series but more rake and slightly less lift
19 are high lift for riggers and hydro's
V9 are moderate lift and high pitch suitable for riggers, hydros and SAW racing
20 are moderatley high lift with high pitch suitable for riggers and hydros
21 are high lift for riggers and hydro's
22 are high lift, highest pitch surface drive only good straight line speed

Thanks again Steve! now i understand why you recomended the m445 prop and not the x642. its de-tongued. Now im learning! ...placing my order when they are instock!

[LarrysDrifter]

Keep on researching, Stephavee, I know I am!!

[Boaterguy]

http://www.fastelectrics.com/octuraprops.htm :thumbup1:
the bottom chart is similar to the OP

[drwayne]

http://www.fastelectrics.com/octuraprops.htm :thumbup1:
the bottom chart is similar to the OP

Andrew G's site has lots of informative stuff... his fastmounts are ace !

I also use this prop chart for my ref.
http://users.tpg.com.au/pcapps//nlr-propchart.pdf

[Stephavee]

I have years of research and fun to put in with this hobby!


Keep on researching, Stephavee, I know I am!!

[Thos]

drwayne,
Great chart, can any one convert this to Excel sheets???

Here you go: http://stenbakk.no/filer/Prop%20chart.xlsx

Any errors are due to either errors in the pdf file, or my eyes getting crossed copying it. Please correct me if you find something wrong.

[Brushless55]

what about the M5xx and M6xx series props?
thanks

[Diegoboy]

M = detongued X
M5 = X5
M6 = X6
etc...

[Brushless55]

that's what I was thinking.
thanks Danny!

[rawsonreyes]

hi guys i would of thought every boater knows this but it seems information is not handed down from the pros because this is the secret of boating, rc or full scale. prop mods is far more important than prop size changing.eg you can change the pitch/detoung=dia change, back cut/barr cut =unloading your motor/more rpm/more eff ,lots more to explain but the bottom line is a more efficient setup cooler motor/esc/packs and most important speed also change rake angle to decrease lift.don't know it all but guys we need to share the knowledge don't just look for records and bragging rights we kneed to improve the fe sports.:Peace_Sign: