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Main rotor blade alternatives for AXE CP

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Main rotor blade alternatives for AXE CP

Old 03-07-2007, 07:14 PM
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alienteabagger
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Default Main rotor blade alternatives for AXE CP

As supposed to spending almost $25 per pair of main rotor blades for my beloved AXE, I bought a set of BLADE CP main rotor blades at $30 for 4 ;]. These blades are the same width, about a half inch shorter than the stock ones, and a bit lighter too. With these blades the rotor head seems to spin much faster (heli seems much stabler once I can get into a hover) HOWEVER I have to give it more throttle to produce the same amount of lift as stock blades and control response is noticeably faster (but then again Im not sure wether or not to attribute this to the new HS-55 servos that I installed this morning). Another alternative that I spotted in the shop were a set of blades from the ALIGN TREX at $15 a pair. These are much longer and will require cutting and rebalancing BUT they are made of fiberglass and are tougher than stock.

Just a heads up for those who replace their main blades more often than they would like.
Old 03-07-2007, 08:16 PM
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Heliko
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Default RE: Main rotor blade alternatives for AXE CP

I'm not in need of blades right now, but I found [link=http://rcsmart.com/bladeswood.html]these[/link] and may give them a try when the time comes.
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Old 03-07-2007, 10:15 PM
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Rotor13B
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Default RE: Main rotor blade alternatives for AXE CP

Those blades should work great, They look to be less than a 1/25 inch bigger than the oem blades and have the 2mm lag bolt hole.
Old 03-07-2007, 11:33 PM
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alienteabagger
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Default RE: Main rotor blade alternatives for AXE CP

Those look exactly like the main rotor blades for the BLADE CP with that black piece at the root of the blade. I removed one part of that black piece and kept the part thats threaded for that second screw to go into. It's a snug fit but I had no problem sliding it into the stock AXE CP blade grips. The tight fit seems to prevent any unwanted pitch changes. I have about an hours flight time on these blades and they have grown on me. Next time I go to the hobby shop I'll pick up a set of AXE blades just to see how they fly compared to these. I only managed to get about 10 mins flight time into 2 sets of AXE main rotor blades so I can't really give an unbiased opinion on their differences.
Old 03-08-2007, 01:13 AM
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Rotor13B
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Default RE: Main rotor blade alternatives for AXE CP

Yes but it's been reported that the blade cp blades are shorter than the Axe blades. According to that site, These blades are 266 mm or just over 10 inches. The Axe blades are like 9.75 inches long or so. If any thing you should gain a little lift.
Old 03-08-2007, 01:46 AM
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Heliko
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Default RE: Main rotor blade alternatives for AXE CP

These blades are a little larger. The Axe blades are 252 x 32mm which equals a lift surface of 8064 square mm.
These other blades are 260 x 34.5mm which equals 8970 square mm. Now if my math is right that's just over an 11% increase in lift surface. If the T/R works too that would be a killer deal.
Old 03-08-2007, 03:11 AM
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Rotor13B
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Default RE: Main rotor blade alternatives for AXE CP

I think i'm gonna buy a set and test them out. Worst case scenario Is I post them up here and sell'em.
Old 03-08-2007, 08:09 AM
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alienteabagger
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Default RE: Main rotor blade alternatives for AXE CP

But wouldn't larger baldes = lower head speed = less cyclic response??
Old 03-08-2007, 03:59 PM
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Heliko
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Default RE: Main rotor blade alternatives for AXE CP

ORIGINAL: alienteabagger

But wouldn't larger baldes = lower head speed = less cyclic response??
No, I don't think there's enough of a size and weight difference to effect headspeed. The motor may have to work a little harder. Cyclic response should remain uneffected as well. As far as cyclic response goes the flybar is responsible for that. That's why like many I have added a couple of 1/16" wheel collars to my flybar for some added stability.
Old 03-09-2007, 11:41 AM
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Don d
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Default RE: Main rotor blade alternatives for AXE CP

I built some flat bottom blades for my CP from aircraft grade spruce. Rough cut with table saw and sanded the airfoil shape. Covered with monokote and they flew fine until it went in the lake. This blades are not for inverted flight.

Don
Old 03-13-2007, 01:03 PM
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Default RE: Main rotor blade alternatives for AXE CP

Hello,

I emailed these folks and asked if these would work on the Axe-CP.
They were unsure. Don't let the price fool you, they want $9.99 for
shipping. Still cheaper then $38 from Tower. Do we gamble or did
someone try these.

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