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Thunder Power RC . Mikado Modellhubschrauber . GrandRC

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Blades, Night Flying and Painting > v-blades vs. MAH blades
 
 
a_korandr
Veteran
Location: Chicago, IL

anyone, please ?!

what would you prefer v-blades or new MinAir MAH blades ?

explanation of why will be very much appreciated !

Thanks.
06-11-2002 Over year old.
 
 
3DMoen
Senior Heliman
Location: nomansland

I currently am flying V-blades but am the process of changing over to MAH main and tail blades. MAH has a much nicer finish to them and are much quieter during aggressive 3D manuvers. And for some reason auto better than V-Blades.
06-12-2002 Over year old.
 
 
sluggo
Elite Veteran
Location: Kitchener Ont

MAH all the way! I was flying V's tell I tryed a set of MAH last year. They are alot stiffer then V's and are alot quieter when pushing them well doing 3D. I am trying out the new 700mm blades right now and so far they have to be the best blade I have ever flown.

And lets not forget they are cheaper to!

Chris
06-12-2002 Over year old.
HOMEPAGE  
 
 
a_korandr
Veteran
Location: Chicago, IL

i am a bit confused now.

i can not tell you that i am an advanced 3D pilot - just started with basics in 3d. and i can confirm that MAHs are much more stiffer than Rotorsports. but i can not preserve auto energy out of MAHs as i can from Rotorsports. MAHs are also thicker then rotorsports by almost 20% - they are 10mm, while Rotorsports (RS) are 8.2mm (if i remember correctly).

boths my MAHs and RSs are same weight, but RSs are700mm, and MAHs are 685mm long.

i know that v-blades are 8.5mm thick. and my thinking was that thinner profile would create less drag (less work for the engine) better speed,etc.

where am i wrong ? or may be there is no one blade set that works for everyone ?

PS : i am not concerned about how quite a blade sounds is, but i guess quiter blades less stall ?
06-12-2002 Over year old.
 
 
Carps
Veteran
Location: Caterham, Surrey, England

Are MAH blades simply rebadged SAB or TGs ?

Anyone know the answer ? That is what I have been told by the UK MA importer but then they don't bring in MAH blades but they do bring in SAB and TG !!!

Carps.
06-12-2002 Over year old.
HOMEPAGE  
 
 
sluggo
Elite Veteran
Location: Kitchener Ont

MAH blades are not or have anything to do with sab's or tg blades. MAH makes there own blades.

a_korandr you should be concerned about how quite a blade is when flying. That noise is very bad (blades stalling) and adds huge amounts of stress to the air frame and radio gear. I don't think you will ever find a blade that does everything you want it to. Some blades will auto better well the next blade will fly better but not auto as good.

I think the best thing to do is pick a blade that fills what you want, If you like to auto all the time and fly more fai stuff them pick a blade that does that very well.

If you are into 3D then you will want a blade that flys 3D very well but might not auto very well and will not be very stable in a hover. I am flying MAH 700mm blades now and find them to be alot more stable but still 3D verey well. They auto a little better then the 685mm blades to boot.

But the 690mm to 710mm MAH blades have a different air foil now so maybe that is why they auto a little better. One thing I have been seeing is MAH on alot of heli's here in Canada and in the states. They must be doing something right!

Chris
06-12-2002 Over year old.
HOMEPAGE  
 
 
a_korandr
Veteran
Location: Chicago, IL

MAH family : 685, 690 & 700

Chris,
i just talked to Tim Schoonard. 690 and 700 are very different from 685 : they are thinner (than 685), double tapered (airfoil height and length wise).

And Tim acknowledged that 685 could do auto a little worse then Rotorsports...

I guess i was impatient when i ordered 685s and should've waited for 690s or 700s.

And the other problem i though was caused by these blades a wobbling during the flips, but apparently Tim suggested me to check the stiffness of the rotorhead (replace rubber rings and/or add #331 shims). And i know my rotor head is not stiff (has not changed the rubber rings since 1998, as i thought they were in good shape every time i checked'em). He also suggested to think about ordering 0120-75 that would allow to experiment with the rotorhead stiffeness.

PS : i personally think that SAB are bad quality blades (that is why they are kinda inexpensive), and MAHs are of a superb quality.

Thank you.
06-12-2002 Over year old.
 
 
sluggo
Elite Veteran
Location: Kitchener Ont

Ya Tim is right the air foil is much more efficient then the 685mm blades. I had the same wobble with my R80 with the 685mm blades but new Orings cleared it up right away.

Also with the tappered air foil the blade has more lift over the whole blade. When you get a chance to try out a set of the 690 or 700mm blades let us know what you think. I am sure you will be very happy with them.

I have only ever tryed 550mm sab's but did not have them long so I dont really know to much about them.

Chris
06-12-2002 Over year old.
HOMEPAGE  
 
 
steve9534
Key Veteran
Location: yakima, wa.

Mah blades

Chris;
I'd really like to try some of the 700mm blades. What do I have to do to order some from you ? Thanks. Steve. steve9534@yahoo.com
06-13-2002 Over year old.
 
 
noname
Veteran
Location: .

Hi!

Where can I get the MAH blades from ? Is 700 the largest they make or do they also manufacture 710's ?
06-15-2002 Over year old.
 
 
Tyler
Key Veteran
Location: Chicagoland area

I just ordered a set of the x-cell 3698-20 700mm blades. The salesman told me that they are actually 690mm if you measure them. I would like to know if these are the blades you are referring to in the above responses when you are writing about 700mm blades. I am learing autos and trying to get inverted forwards and backwards flight mastered (wishing).

Also, I am running an OS 61sxwc engine with a muscle pipe. This power combination seems to be happiest running about 1900 rpm headspeed with the Leisure Tech 680 glass blades that I just ruined today. I only get about 7-8 minutes of flying with the stock Fury 20 oz tank. Will going to longer blades possibly improve my fuel economy? Ron Lund once told me that Curtis always runs 700mm V-blades and that the OS/MP combo doesn't see enough of a load with only 680 mm blades. My excessive head speed an fuel consumption leads me to believe that the engine could withstand some additional disc loading and still be happy. Any comments on this subject would be greatly appreciated.

I was forced to decide between MS 680 3D blades and the x-cells. For autos and smooth aerobatics/ beginning 3D, did I make the right choice?

Tyler

Airtronics, YS Power, Switchglo ignitors, Jersey Modeler filled with Magnum
06-15-2002 Over year old.
 
 
a_korandr
Veteran
Location: Chicago, IL

i guess you ordered 'gamma' blades, they are a lot cheaper than MAH blades.

i have not noticed a huge difference between 700s and 680s.

to me speed of 1900 is way to high - this put addl unnecessary drag on them. i am running at 1750 and have no complains.

as far as to autorotations - i think you can do them on all the blades you mentioned with little difference.
06-17-2002 Over year old.
 
 
a_korandr
Veteran
Location: Chicago, IL

sluggo,
i replaced (changed) the o-rings in the rotor head, added addl shim at each side of the axil - wow ! from a slow donkey Pro-II became a wild horse - do not see wobbling either. will need to crank the ratios down for a bit...

i guess i'll keep the mah685s. they are a lot quieter than the rotorsports'.

but, would you still rate MAH better than the v-blades ?

Thanks.
06-19-2002 Over year old.
 
 
sluggo
Elite Veteran
Location: Kitchener Ont

Well If I said yes I would get jumped by a bunch of V blade guys! But if you start looking aroud at the FF there is more and more MAH blades on helis and less V's.

Chris
06-19-2002 Over year old.
HOMEPAGE  
 
 
Zxyxx
Senior Heliman
Location: Anaheim

The MAH blades are awesome. Moreover, they auto great. However, I will not purchase them again because the Rotorsports are 95% as good as MAH and they are only $75. The 680mm TT blades are shorter Rotorsports with a thinner root and they are just as good for only $68. If I need 680mm, I use TT blades. If I need 700mm, I use Rotorsports.

But, MAH are the best blades on the market.
06-19-2002 Over year old.
 
 
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Blades, Night Flying and Painting > v-blades vs. MAH blades
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