RE: Differances between the T-rex family

RE: Differances between the T-rex family
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RE: Differances between the T-rex family - 9/2/2006 1:54:46 PM

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Look at the set up for the SE then look at the set up for the XL CDE. The servo's for the SE and SA are mounted in the frame upclose to the main shaft and the linkage from the servo's go to the swash. On a CDE the servo's are mounted towards the front of the Heli and require extra linkage. The extra linkage interferes with the canopy , and les parts usually less problems.

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RE: Differances between the T-rex family - 9/5/2006 11:39:47 PM

budzo

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is there any performance adventage to True ccpm

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RE: Differances between the T-rex family - 9/8/2006 7:48:58 AM

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I'm guessing ccpm will allow me to use weaker servos since all of them act together to do 1 movement? The HDE would need stronger one since each of them act on one movement. So if a servo goes out on the ccpm version, would the other 2 servo be able to have partial movemenr for me to land safely? Whereas the HDE one would just lose that 1 movement completely probably end with a crash. Am I correct or I'm just talking non-sense?

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RE: Differances between the T-rex family - 9/11/2006 4:19:54 AM

budzo

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I think either way if a servo goes out you will be able to land safely. the HDE has four servos at 90 degree incraments. this means if you gave roll, one servo goes up on one side and the other on the opposite side goes down. so if one servo is out the other on the opposing side is still moving up and down. im not as sure about ccpm, i think it would be harder to land if a servo went out, but thankfully i have never experianced a servo out to know for sure. but back to my question, what are performance advantages on true ccpm? true ccpm is actually called electronic ccpm or eCCPM and then there's regular CCPM known as mechanical ccpm. am i right?

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RE: Differances between the T-rex family - 9/11/2006 5:32:24 PM

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Ok, was out looking again. Accept having more parts , I don't see an advantage of stantard CCPM mixing. You do need a computor Tx for eccpm or ccpm . I was thinking standard mixing that is non collective and does not require a computor. I'm not sure if that style is even available for r/c use.

< Message edited by AJsToyz -- 9/12/2006 6:07:49 PM >

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RE: Differances between the T-rex family - 9/12/2006 3:46:11 AM

budzo

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ok i see what your saying, ccpm and eccpm have no differance except more parts

< Message edited by budzo -- 9/12/2006 9:29:06 PM >

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RE: Differances between the T-rex family - 9/13/2006 4:26:05 PM

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I edited that because I don't want to put really bad info out there . Sorry about that ! The ECCPM is supposed to handle better , and respond better with less parts , but most of us would never notice.

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RE: Differances between the T-rex family - 9/14/2006 11:42:43 PM

budzo

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good because most of us includes me so i'll just get the T-rex with the mechanical ccpm. anyone else have comments about eCCPM and CCPM?

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RE: Differances between the T-rex family - 9/15/2006 6:30:36 AM

Gonwee

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I thought the hde uses a servo for roll, a servo for elevator, and then a servo for pitch...

What diffrence is there between the SE servo linkages and mounting to the xl cde? Because the SE looks about as 'true' eccpm as there can be.(it just electronicly mixing 3 servos to work together to acompolish pitch roll and elevator)

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RE: Differances between the T-rex family - 9/15/2006 3:26:40 PM

don_87

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quote:

ORIGINAL: Gonwee

I thought the hde uses a servo for roll, a servo for elevator, and then a servo for pitch...

What diffrence is there between the SE servo linkages and mounting to the xl cde? Because the SE looks about as 'true' eccpm as there can be.(it just electronicly mixing 3 servos to work together to acompolish pitch roll and elevator)

You are correct.
The HDE uses a seperate servo for roll, pitch, and elevator. They act independently of each other.
A CDE uses 3 servos working together to accomplish the same thing.
The benefit to the HDE is that setup of mCCPM is easier.
The downside of eCCPM is the more direct linkage setup to the swashplate which in most cases will cause servos to strip out in the most minor of crashes. (It can happen with mCCPM, but not as often).
That is the reason that most are going with the HS 65mg servos. They hold up better in a crash. According to others( I only have the HDE), instead of servo stripping out, linkages break now. (but linkages are much cheaper than servos or servo gear sets).
As far as flying, most say that the average flyer will never notice the difference between the HDE and the CDE.
It's when you get into hard 3d flight where the difference becomes noticable.
I personally will be more than happy, if I can do mild 3d and just generally fly around.
Those are the reasons I chose the HDE above the CDE.

Good Luck with whichever you choose, Don

< Message edited by don_87 -- 9/15/2006 8:06:02 PM >

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RE: Differances between the T-rex family - 9/15/2006 4:49:04 PM

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No matter what you do you still need a computor radio , and you still need to set it up properly. As far as easy ?? If you pay attention to what you are doing they are all pretty easy to set up.

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RE: Differances between the T-rex family - 9/15/2006 8:10:07 PM

don_87

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quote:

ORIGINAL: AJsToyz

No matter what you do you still need a computor radio , and you still need to set it up properly. As far as easy ?? If you pay attention to what you are doing they are all pretty easy to set up.

Actually, a computer radio is not necessary for the HDE. That is because there is no mixing invloved. Any standard 6 channel radio will work on an HDE.

Don

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RE: Differances between the T-rex family - 9/15/2006 8:39:43 PM

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quote:

ORIGINAL: don_87
You are correct.
The HDE uses a seperate servo for roll, pitch, and elevator. They act independently of each other.
A CDE uses 3 servos working together to accomplish the same thing.
The benefit to the HDE is that setup of mCCPM is easier.
The downside of eCCPM is the more direct linkage setup to the swashplate which in most cases will cause servos to strip out in the most minor of crashes. (It can happen with mCCPM, but not as often).
That is the reason that most are going with the HS 65mg servos. They hold up better in a crash. According to others( I only have the HDE), instead of servo stripping out, linkages break now. (but linkages are much cheaper than servos or servo gear sets).
As far as flying, most say that the average flyer will never notice the difference between the HDE and the CDE.
It's when you get into hard 3d flight where the difference becomes noticable.
I personally will be more than happy, if I can do mild 3d and just generally fly around.
Those are the reasons I chose the HDE above the CDE.

Good Luck with whichever you choose, Don

So you're saying HDEs won't strip the servo gears as easily as CDEs?

The thing is though, with the HDE, I can't upgrade to the metal parts and eventually end up with a 450XL SE.

< Message edited by rcboosted -- 9/15/2006 8:42:11 PM >

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RE: Differances between the T-rex family - 9/15/2006 9:14:41 PM

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Actually I think you could, you'd just have to get the frame and head kit to do it.

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RE: Differances between the T-rex family - 9/15/2006 9:54:34 PM

budzo

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woa woa woa. some people say you need mixing for hde other say you don't. what is the real deal, i understand the HDE uses four servos at 90 degrees for the swash plate. if im right the servos on the sides will be y harnesed and pluged into channel 1, this is roll. the front and back servos will be y harnesed to channel 2 controlling forward and reverse. how then do you controll pitch? or how do you even set up for HDE?

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RE: Differances between the T-rex family - 9/15/2006 9:54:47 PM

Gonwee

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quote:

ORIGINAL: rcboosted

quote:

ORIGINAL: don_87
You are correct.
The HDE uses a seperate servo for roll, pitch, and elevator. They act independently of each other.
A CDE uses 3 servos working together to accomplish the same thing.
The benefit to the HDE is that setup of mCCPM is easier.
The downside of eCCPM is the more direct linkage setup to the swashplate which in most cases will cause servos to strip out in the most minor of crashes. (It can happen with mCCPM, but not as often).
That is the reason that most are going with the HS 65mg servos. They hold up better in a crash. According to others( I only have the HDE), instead of servo stripping out, linkages break now. (but linkages are much cheaper than servos or servo gear sets).
As far as flying, most say that the average flyer will never notice the difference between the HDE and the CDE.
It's when you get into hard 3d flight where the difference becomes noticable.
I personally will be more than happy, if I can do mild 3d and just generally fly around.
Those are the reasons I chose the HDE above the CDE.

Good Luck with whichever you choose, Don

So you're saying HDEs won't strip the servo gears as easily as CDEs?

The thing is though, with the HDE, I can't upgrade to the metal parts and eventually end up with a 450XL SE.

the se is eccpm to, so if your worried about servos then you don't really want a se, just a aluminum hde.

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RE: Differances between the T-rex family - 9/15/2006 11:35:22 PM

don_87

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quot