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Home✈️Aircraft🚁HelicopterHelicopter Main Discussion › Aluminum Rotor blade source
08-19-2018 02:26 AM  21 months ago
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Machinehead01

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Lower Michigan

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Aluminum Rotor blade source
Who is making them? What companies, and what lengths?

Tom
"You judge according to the flesh; I am not judging anyone."
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08-19-2018 02:47 AM  21 months ago
ssmith512

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Indianapolis, IN USA

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https://www.m-blades.com/

http://www.cad-jung-shop.de/main-rotor-blades-VIPER-X

--------------------------------------------------------

Not approved for 3D flying. Note headspeed RPM limitations.

https://www.modelaircraft.org/sites...t/files/555.pdf
Steve
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08-19-2018 02:51 AM  21 months ago
BeltFedBrowning

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Kansas City

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I got my last set of M blades from a company in Belgium. I don't have the website here, but I can post it monday from my work computer.
They had lengths from 325mm to 1000mm. Left or right hand rotations, several airfoils
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08-19-2018 05:32 PM  21 months ago
MattJen

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UK

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M Blades are good, high price but you do get what you pay for, they used to be made to order, so took months from time of order to delivery.
I am not sure if this is still the case.
All The Best
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08-19-2018 06:09 PM  21 months ago
BeltFedBrowning

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Kansas City

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The website that I used was a stocking dealer. Only took a week or two
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08-19-2018 07:11 PM  21 months ago
MattJen

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UK

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Ah cool
That much better.. Thanks for info

Here is the M blades I got for my long-ranger.

All The Best
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08-19-2018 07:31 PM  21 months ago
Héli Suisse

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Geneva Switzerland

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I am using M-Blades for years with great pleasure and success. They are very precise, track perfectly, and give very good flight performance. They are pricey but as mentionned before you get what you paid
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08-20-2018 01:08 PM  21 months ago
BeltFedBrowning

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Kansas City

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The link will no longer work at my workplace, but here is where I got my M-blades. It has been a couple of years since I ordered them. I hope it still works.
https://www.modellhubschrauber.ch/
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08-20-2018 01:57 PM  21 months ago
Héli Suisse

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Geneva Switzerland

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I order mine at https://www.modellhubschrauber.ch/B...er=k304g313p511
They transfer the order directly to M-Blades
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08-22-2018 10:29 PM  21 months ago
Machinehead01

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Lower Michigan

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Thanks guys
Not sure as to what I'm reading on the site with things being different a language and all but did I see that there were some asymmetrical offered as well? Flats would probably give me the most lift plus scale appearance, price comes down as well if I'm not mistaken.

Tom
"You judge according to the flesh; I am not judging anyone."
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08-22-2018 11:13 PM  21 months ago
ssmith512

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Indianapolis, IN USA

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ViperX blades are only offered asymmetrical

M-blades: X-series blades are symmetrical. S-series blades are asymmetrical.
Steve
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08-22-2018 11:31 PM  21 months ago
BeltFedBrowning

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Kansas City

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I have the 900mm asymmetrical M-blades on my Mongoose. They are very floaty.
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08-24-2018 04:59 PM  21 months ago
helitom

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Pine Grove, Calif, USA

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I've been flying RC Helis for a very long time but I must admit this thread is the first I've heard of aluminum blades. What's the advantage? I would think they would be heavy compared CF blades. Are they hollow? How about a quick schooling......The older I get, the fewer things seem worth waiting in line for.
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08-24-2018 05:36 PM  21 months ago
BeltFedBrowning

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Kansas City

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The blades are not heavy. I have not weighed them, but they are not heavier than my carbon blades. They are machined or extruded somehow to make them hollow. Epoxy was used for balance and the ends are sealed with epoxy.

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08-25-2018 12:17 AM  21 months ago
JuanRodriguez

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The Villages, Florida

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Is the use of metal blades covered by the AMA ??Been there, done that and old enough to know better.....
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08-25-2018 12:31 AM  21 months ago
ssmith512

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Indianapolis, IN USA

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JuanRodriguez Is the use of metal blades covered by the AMA ??
See AMA doc link in post #2.
Steve
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08-25-2018 12:49 PM  21 months ago
Heli_Splatter

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USA

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Why does AMA prohibit use of metal airplane props? To me, it seems like the carbon fiber props can do just as much damage as metal. Just asking.
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08-26-2018 03:43 PM  21 months ago
MattJen

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UK

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I think it was an old line of thinking, carbon doesn't fatigue, Aluminium does, that was the worry with the Metal blades was how do you know when the metal is starting to fatigue, there was ideas of using blades filled with a blue dye so when they started to fatigue blue lines would appear, Peter Wales did a lot of hard work in presenting to the AMA how outdated some of their reasons were for banning Ali blades, there was a long thread all about it a few years ago, as we did the same over here with our equivalent of the AMA - Uk BMFA, both sides of the pond reached a compromise and agreed Ali blades would be used of a certain size and not for 3D, same here in the UK.. we can only purchase blades through one source and the blades have to be registered and be inspected every year for airworthiness.
You could of course buy from any source and not register, but then you would not be able to fly at any BMFA event as they would be unverified blades.
That was the case a few years ago in the UK not sure now, Modtron was one of the guys here in UK who worked with BMFA.
All The Best
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