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Old Dec 19, 2006, 02:26 PM
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Tacoma, WA
Joined Apr 2006
52 Posts
I've had mine to this too. If the chopper has allready armed and I turn the radio off, it will head for the moon! Caused my first crash in the kitchen. Balanced the blades, gave it a total tune up, lifted off and landed, shut off the receiver, then almost lost my face as it came right at me. Hit two walls and my plants, didn't stop until the transmitter was back on. Now I don't turn the Tx off until I'm SURE the chopper has no power
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Old Dec 19, 2006, 02:43 PM
Registered User
Great White North
Joined Dec 2005
729 Posts
It must have something to do with the arming system. The old boys all have the TX first on last off drilled into them, but that was when you went to a flying field to learn how to fly. With the upserge of mini electrics they needed some way of preventing us NEWBIES from chopping our fingers off and thus the arming system. I guess somebody forgot to tel the manufactures that Newbies can figure out a way to get around all the thinking. A simple {1 sec loss of signal / land} program in the chip would have done the job, but who would have known.

I guess us Newbies and not so Newbies will just have to learn the old mantra,

TX FIRST ON LAST OFF DON't FLY BEYOND YOUR CAPABILITIES

Now all newbies together...

TX FIRST ON LAST OFF DON't FLY BEYOND YOUR CAPABILITIES

TX FIRST ON LAST OFF DON't FLY BEYOND YOUR CAPABILITIES

TX FIRST ON LAST OFF DON't FLY BEYOND YOUR CAPABILITIES


Robert
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Old Dec 19, 2006, 04:23 PM
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Aurora, CO
Joined Apr 2003
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At least the CX2 has programmable fail-safe! I've tested it quite a bit, too with no problems.
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Old Dec 19, 2006, 06:53 PM
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Shenandoah Valley
Joined Dec 2006
23 Posts
Went there, did that today. It was too nice not to get outside and it didn't seem too breezy... Powered up and at just about the 20 ft level an updraft grabbed the helo and started hauling it toward the neighbors horse pasture. Tried to fly it back home, but no joy; I should have cut power as soon as I knew I was in trouble. At about 100 yds downrange and 40 ft of altitude the bird became a rock. I couldn't see where it landed for the terrain, but it must have spooked the horses because they scattered. Found it in about 15 minutes - a broken skid was the only damage.
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Old Jan 03, 2007, 05:04 PM
**I'm Battman**
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Twin Falls, Idaho
Joined Jan 2005
8,599 Posts
Quote:
Originally Posted by dribbe
Hi,
Not sure what failure this could be?? Most Rf interference on 72mhz results in the heli going down!

If you do get a CX2....
If the link is lost, the motors will shutoff in less than a second (DSM2 Failsafe feature). I have confirmed this many times by shutting off the Tx in a low hover... It just drops (and the Rx link light goes out).
Range should be about 350 ft.
David

Are you saying that the CX2 range is only 350 ft.??

rc
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Old Jan 03, 2007, 05:46 PM
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Roswell, GA
Joined Jun 2004
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If the range is 350', that's at least double the distance I could possibly see it well enough to fly - not a problem
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Old Jan 03, 2007, 05:46 PM
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Palmdale, CA
Joined Oct 2000
13,466 Posts
Quote:
Originally Posted by RCBABBEL
Are you saying that the CX2 range is only 350 ft.??

rc
.
Less than that.
Flew the CX-2 receiver in a normal airplane.. it lost contact at 300' or so.
It's not an outdoor system..
http://www.rcgroups.com/forums/showthread.php?t=619802
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Old Jan 04, 2007, 07:44 AM
**I'm Battman**
RCBABBEL's Avatar
Twin Falls, Idaho
Joined Jan 2005
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Wasn't the range for the original BCX about 1500ft.??

The CX2 is "new & improved"? I'm not excited about this news!!

FYI... We just had a local flyer report that at about 200' his CX2 went into full signal lock-out and dropped out of the sky like a rock. Luckily his heli was saved by a tree. Replaced all batteries thinking that would help, and had a repeat of the first crash minus the tree and totaled his machine. He called Horizon and was told that the range on the CX2 was as far as you can see it. He replied that he could easily see it drop out of the sky at 200'. Horizon tech replied that the range was actually 175'.

Anyone from Horizon have a comment on this?

rc
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Old Jan 04, 2007, 09:56 AM
Ascended Master
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Palmdale, CA
Joined Oct 2000
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Quote:
Originally Posted by RCBABBEL
Wasn't the range for the original BCX about 1500ft.??

The CX2 is "new & improved"? I'm not excited about this news!!


Anyone from Horizon have a comment on this?

rc
.
Two different radio systems.. The CX is on 72 Mhz. The CX-2 is on 2.4 Ghz, and it has a very low powered transmitter.
The LP5DSM system in the CX-2 really isn't suitable for outdoor flying where the plane can get some distance away.
There's no such restriction for the radio with the CX.
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Old Jan 04, 2007, 11:47 AM
**I'm Battman**
RCBABBEL's Avatar
Twin Falls, Idaho
Joined Jan 2005
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Sparky,
Thanks for your comment but is this really progress in the right direction?

I love my CX2 but am not happy about this reduced range.

My local hobby shop was telling all their customers that the CX2 had out of sight range because that's what the Horizon rep told him before they placed their order. They are considering only stocking CX1s now!

rc
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Old Jan 04, 2007, 12:01 PM
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Palmdale, CA
Joined Oct 2000
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Either helicopter will be uncontrollable at the maximum useable range because they'll be too small to see!
The plane I used to check the range is many larger than the CX.
I get very uncomfortable with the CX/CX-2 at more than 100 feet away.
They're too difficult to control at those distances.
I don't see any reference to range in the manual for the CX-2.
Possibly Eflite felt the loss of contact due to size alone would be sufficient.
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Old Jan 06, 2007, 12:33 PM
**I'm Battman**
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Twin Falls, Idaho
Joined Jan 2005
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Has anyone heard or seen anything on using the DX7 transmitter to control the CX2? Does it increase the range?

Thanks,
RC
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Old Jan 06, 2007, 01:47 PM
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USA, WV, Charles Town
Joined Mar 2005
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Quote:
Originally Posted by RCBABBEL
Has anyone heard or seen anything on using the DX7 transmitter to control the CX2? Does it increase the range?

Thanks,
RC
I don't know for sure about range, but that should be dependent more on the TX that the RX, so I guess it would.

I understand that the DX7 will work with the CX2, but the DX6 will not.
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Old Jan 06, 2007, 08:23 PM
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Palmdale, CA
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Flew the CX-2 receiver with the DX-7 transmitter.. I'd say it's OK for the typical foamie, range wise... might try it in a higher performance plane to get more distance.
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Old Jan 06, 2007, 09:11 PM
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Just curious, why would you use a CX2 receiver with a DX7 in anything other than the CX2? Doesn't the DX7 come with a receiver to use that would allow long range?
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