stunthanger.com
Electric Stunt => Gettin all AMP'ed up! => Topic started by: Randy Powell on January 18, 2013, 02:37:55 PM
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I notice no one using three bladed props for electrial planes. Why is that?
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Why you think? :- ))
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I notice no one using three bladed props for electrial planes. Why is that?
Two things:
1. APC won't make them
2. You are going to GET IT when Igor sees this! n1 :X
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I notice no one using three bladed props for electrial planes. Why is that?
Actually I beleive that Paul is using three blade carbon props now,, ( standard rotation not pushers) THat was what was on his impact in Salem last fall,,,
I think one of the things is the availability of reverse three blades has people staying with two blades,, plus the performance of the APC e props are so solid that most people dont go away from them
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Well, except for Igor, but he marches to a different drummer. ;D
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When I was flying glow planes , I spent a bunch of money on $50. props , and sure enough , sometimes I found the perfect one to match my setup.Now with electric , the APC popular sizes are so reasonably priced , and repeatable performance is assured , I can see no reason to go out spending money on a dream , when the performance they give me is so solid.(And I can afford them ) Also, the popularly held belief that we benefit from pusher props when we fly counterclockwise , is pretty difficult to argue against. It comes down to having one thing less to worry about for me. Keith
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Probably not too much types are available there, in good measures...
It was far simple to put on some 12-6 APC; I have had it for long time, but I needed to find something better, some 3-bladed type.
There is 11-5.5E from Mr. Mejzlik (Czech Republic), this is excellent, but too small for me.
As I would like to fly slower, (5.3 ÷ 5.4 secs/lap), I needed larger.
So I made one12.3-5.5 prop of CFK, and it is great pleasure to fly with.
It weighs .88 oz.
See photo:
(http://kepfeltoltes.hu/thumb/130119/DSC_www.kepfeltoltes.hu_.jpg) (http://kepfeltoltes.hu/view/130119/DSC_www.kepfeltoltes.hu_.jpg)
A képet a Képfeltöltés.hu tárolja. http://www.kepfeltoltes.hu (http://www.kepfeltoltes.hu)
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My motor is one 4250 (KV 600), battery 6S 2600 40C, ESC: Jeti Spin-66; timer: Igor
Complete weight 65 oz.
Flying time 5 min 10 sec, consumptation is 1600÷1700 mAh
Tamas
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Just checked the Mejzlik web site and most things are out of stock - the 11 x 5.5 electric prop and the great carbon landing gear
that I like to use. Any place else might have these?
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Just checked the Mejzlik web site and most things are out of stock - the 11 x 5.5 electric prop and the great carbon landing gear
that I like to use. Any place else might have these?
Hi Robert,
Have you checked with Randy?
Bill
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Just checked the Mejzlik web site and most things are out of stock - the 11 x 5.5 electric prop and the great carbon landing gear
that I like to use. Any place else might have these?
you must ask proper people :- ))) .. yes they are available :-))) ... however they are not 11x5.5 but 11x5 ... that is what we fly, it is modified version of that what you see on Mejzlik page
It runs at higher rpm then 6" props, so even with less dics area, it has better speed stabilty then old APCs 12x6 what should be theoretically the same prop size (11" 3bl instead of 12" 2 blade)
That prop from Tamas which is upper, has larger blades, but so far I did not heve feeling that I need larger prop. I was also confortable wit 11" in that terrible wind in Bulgaria. I have that prop home, but I did not test it yet, may be I will change mind when I will see it air :-)) ... However I think Tamas is magician that he has consumption only 1700mA, we will see when sun comes back :- )))
I have also nother prop, specially done for electric, also from hungaria, wood version with blades almost identical to that carbon prop from Tamas, but pitch is even less then 5". Also adept for spring testing :- ))