Main diference APC vs Master Airscrew
#1
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Main diference APC vs Master Airscrew
well i know the design is totally different, also the MA are more durable on crash or ground hits. It will be great to hear more info about it on 4 strokes propeller an 2 strokes.
#2
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RE: Main diference APC vs Master Airscrew
Here`s one of my own experiences. Katana 70 with ASP 91 fs engine. On APC 14-6 only slow pullout from hover, changed to Master Airscrew S2 14-6 and pullout was greatly improved
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RE: Main diference APC vs Master Airscrew
You will get lots of opinions about what is better and lots of "engineering talk" to back it up.
When all opinions are in; the only way to know what is best for you, and for your application, is to test fly a bunch of different props.
The plane I fly all the time is a Tower Hobbies Uproar 60. It has an ASP .61 two stroke. I use 12x6 props. For the way I like to fly the plane, all of these work great: APC sport, Master Airscrew K Series, Master Airscrew Scimitar. Is one "better" than the other? For me, the K Series is best because it usually survives my rough landings. If I was a better pilot I might think one of the others was better but ther K series pulls the plane strongly through the aerobatics I know how to do.
When all opinions are in; the only way to know what is best for you, and for your application, is to test fly a bunch of different props.
The plane I fly all the time is a Tower Hobbies Uproar 60. It has an ASP .61 two stroke. I use 12x6 props. For the way I like to fly the plane, all of these work great: APC sport, Master Airscrew K Series, Master Airscrew Scimitar. Is one "better" than the other? For me, the K Series is best because it usually survives my rough landings. If I was a better pilot I might think one of the others was better but ther K series pulls the plane strongly through the aerobatics I know how to do.
#4
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RE: Main diference APC vs Master Airscrew
Judging by looking only, the APC should perform better due to the computer designed twist. Also, the tips are more efficient over squared off tips.
However, it sometimes doesn't make any sense at all. For instance, I was flying a Sig Somethin Extra and so was my buddy. I have an Evo .46NT on mine, and he had an OS .50SX on his. I was using an APC on mine and his performed poorly with the same prop.
The shape of your cowl, cheeks, etc all come into play and we tend to ignore that fact. You just have to experiment until you settle on what's good for you.
BTW, we later mid-aired those two planes hard and got them both down okay. I left about 5" of my leading edge in his fuselage like a little spear! Anyway, his model and engine are long gone as he shredded the SE thru a tree at full throttle. The engine was about 50' away in a shallow pond.
However, it sometimes doesn't make any sense at all. For instance, I was flying a Sig Somethin Extra and so was my buddy. I have an Evo .46NT on mine, and he had an OS .50SX on his. I was using an APC on mine and his performed poorly with the same prop.
The shape of your cowl, cheeks, etc all come into play and we tend to ignore that fact. You just have to experiment until you settle on what's good for you.
BTW, we later mid-aired those two planes hard and got them both down okay. I left about 5" of my leading edge in his fuselage like a little spear! Anyway, his model and engine are long gone as he shredded the SE thru a tree at full throttle. The engine was about 50' away in a shallow pond.
#5
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RE: Main diference APC vs Master Airscrew
After testing many different props over the years, I have come to the conclusion that the APC's perform the best for me 95% of the time. The only prop I currently use other than a Apc is a Zoar 17-6. I did not need the weight of the APC up front. I also have never had a problem with the tips breaking, since I do not contant the ground with them. People that break tips, have to learn how to take off and land.
#6
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RE: Main diference APC vs Master Airscrew
From my experience, not all APC's are as good. Some are better than others
One of APC's poorest props is their 14-6. It should have been redesigned many years ago.
Yet for props like the 12-5, 13-6, and the "W" props there are non better
One of APC's poorest props is their 14-6. It should have been redesigned many years ago.
Yet for props like the 12-5, 13-6, and the "W" props there are non better
#7
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RE: Main diference APC vs Master Airscrew
MA has a lower prop load factor than APC sport, so for a fair comparison, you should use an MA with a bit more pitch. It will not do to compare the two on numbers only.
I found the MA to be better in pull-out and vertical stamina, but a lot depends on matching the right prop to the airframe. A lower rpm torque happy engine would like the APC better because of it's increased engine load.
I found the MA to be better in pull-out and vertical stamina, but a lot depends on matching the right prop to the airframe. A lower rpm torque happy engine would like the APC better because of it's increased engine load.
#8
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RE: Main diference APC vs Master Airscrew
ORIGINAL: w8ye
From my experience, not all APC's are as good. Some are better than others
One of APC's poorest props is their 14-6. It should have been redesigned many years ago.
Yet for props like the 12-5, 13-6, and the ''W'' props there are non better
From my experience, not all APC's are as good. Some are better than others
One of APC's poorest props is their 14-6. It should have been redesigned many years ago.
Yet for props like the 12-5, 13-6, and the ''W'' props there are non better
Actually,
There 14-6 has allways been my favorite prop for a Saito, Magnum or OS .91 four stroke. It also was the prop of choice on my Saito 100T years ago. For the Saito 100T, I must have tried 10 different props including some custom diameters.[X(]
#9
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RE: Main diference APC vs Master Airscrew
Must have something to do with the airframe then because my Saito 91 will just barely hover my AeroWorks Extra 260 with the APC 14X6. It's much better with the APC 15X4W and is at it's best with a Master Airscrew 14X6. All of this testing stuff is what makes life fun. Oh yeah, I forgot to add, it's slightly faster with the APC 14X6 but it just does 3D stuff, where max pullout is important, much better with the MA 14X6.
#10
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RE: Main diference APC vs Master Airscrew
I liked the MA14x6 k series on my Saito 65 and 4*40 better than the others tried.
MA9x7 works great on the Sig Kobra with OS 32.
Apc 9x4 on a OS25fx in a Shrike .10.
MA 6x3, TT 07, Ace Simple 400.
APC 14x10, YS110, Explorer.
APC 12x10, Saito 82, Midwest Zero.
APC 12x5, OS55ax, 4*40, Cox Giles 202
I do like the MA's better if I bang it against the asphault.
I have a bunch of props left over after trying a new engine and airframe.
Never been impressed with the few wood props I've tried, especially after hitting terra firma.
Props are real subjective, go with what you know!
MA9x7 works great on the Sig Kobra with OS 32.
Apc 9x4 on a OS25fx in a Shrike .10.
MA 6x3, TT 07, Ace Simple 400.
APC 14x10, YS110, Explorer.
APC 12x10, Saito 82, Midwest Zero.
APC 12x5, OS55ax, 4*40, Cox Giles 202
I do like the MA's better if I bang it against the asphault.
I have a bunch of props left over after trying a new engine and airframe.
Never been impressed with the few wood props I've tried, especially after hitting terra firma.
Props are real subjective, go with what you know!
#11
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RE: Main diference APC vs Master Airscrew
I notice that if you're looking down at the top from above the plane, you can see the MAS props flex a lot more upon acceleration than the APC props. APC is more rigid and therefore less energy is lost to prop flex and a more immediate response is gained.
I haven't tried the heavier MAS though, just the K series and the one similar to that.
I haven't tried the heavier MAS though, just the K series and the one similar to that.
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RE: Main diference APC vs Master Airscrew
Main difference is NOISE. APC are quieter. Our club has noise limits and when a plane is too loud one of the first things they recommend is switch from master airscrew if one is being used to an apc blade to lower the decible rating. It's not even close. You can hear the difference and it's obvious to the db meter.
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RE: Main diference APC vs Master Airscrew
WMB, I am new to RC Universe and noticed that you had mentioned the Midwest Zero aircraft in your post. I was wondering if you have plans for the model or know anywhere I can find them? I have to rebuild my wing and Midwest does not support model aircraft any more. I would gladly purchase a copy of the plans from you if you were willing to have them copied. If you could, please email me at [email protected] with any information. Thank you very much for your help.
Rob...
Rob...
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RE: Main diference APC vs Master Airscrew
I like the APC better than MA. The MA seem to vibrate more. They definately flex more. But in the end I like a XOAR wood prop best. They are lighter than plastic and spin up faster.