RE: Dualsky 6360-12T props

RE: Dualsky 6360-12T props
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RE: Dualsky 6360-12T props - 6/12/2008 3:34:52 AM

2dogrc

Posts: 30
Joined: 4/27/2005
From: Fort Woth, TX, USA
Status: offline

*********************UPDATE*********************

Hello Guys,

I have been working with Dualsky as well as some of you from these forums. Currently Dualsky has suspended production of the Xm63 series motors to address these issues. They are consulting with the manufacturer and other international motor companies to produce a iindustry leading F3A motor! I will get you updates when available. I do Not have a specific date and do apologize for any inconvenience.

mark
www.2dogrc.com

(in reply to jbudd)

Post #: 176

RE: Dualsky 6360-12T props - 6/12/2008 8:26:00 PM

OhD

Posts: 428
Joined: 10/23/2002
From: west hills, CA, USA
Status: offline

quote:

ORIGINAL: 2dogrc

*********************UPDATE*********************

Hello Guys,

I have been working with Dualsky as well as some of you from these forums. Currently Dualsky has suspended production of the Xm63 series motors to address these issues. They are consulting with the manufacturer and other international motor companies to produce a iindustry leading F3A motor! I will get you updates when available. I do Not have a specific date and do apologize for any inconvenience.

mark
www.2dogrc.com

I've got 290 flights on my Dualsky so I'm not complaining. However, if I can make some suggestions, here goes. Get rid of the pin/hole in the shaft. Retain the rotor/shaft with an c-ring like Hacker does and use a Hacker type collet/spacer that presses against the inner race of the front bearing. Keep the threaded axial hole in the shaft so a spinner adapter nut is not required. Keep the weight down and strength up. Titanium? Carbon? Probably need some radii in the corners.

Jim O

(in reply to 2dogrc)

Post #: 177

RE: Dualsky 6360-12T props - 6/12/2008 9:46:49 PM

shannah

Posts: 212
Joined: 9/6/2004
From: placentia, CA, USA
Status: online

More power.

Include a rear bearing and mount for those that front mount the motor. Rear bearing support is mandatory for a front mounted outrunner.

Heavier gauge wiring.

< Message edited by shannah -- 6/12/2008 10:02:07 PM >

(in reply to OhD)

Post #: 178

RE: Dualsky 6360-12T props - 6/12/2008 10:55:04 PM

OhD

Posts: 428
Joined: 10/23/2002
From: west hills, CA, USA
Status: offline

quote:

ORIGINAL: shannah

More power.

Include a rear bearing and mount for those that front mount the motor. Rear bearing support is mandatory for a front mounted outrunner.

Heavier gauge wiring.

Very good point Steve. Let the shaft stick out of the can about .25 inches so we can put a rear support bearing on it. That would save the weight of the prop adapter I use now.

More power? Have you tried the 11T? It should allow more power but I never tried it as I didn't want to pull my poor old batteries down. With these new low resistance batteries it should be okay to pull 70+ amps. Not sure the motor can handle it but it may be worth the try. They claim 2450 Watts. 35 volts times 70 Amps equals 2450. I'm down around 60 Amps or less. Might be an easy way to get a 10% increase in power.

(in reply to shannah)

Post #: 179

RE: Dualsky 6360-12T props - 6/12/2008 11:22:48 PM

shannah

Posts: 212
Joined: 9/6/2004
From: placentia, CA, USA
Status: online

If I could swing the same prop range (20x15, 21x14) at a higher rpm such that I got a peak of about 2900 watts

then you'd see a very happy camper. That would be a peak of about 85 amps or so. Seems that the newer batts can provide the juice required. I think right now I am like you, around 65 amps with the 20x15 on the 12T so I am running between 2200 and 2300 watts. Add about 700 watts to that and I figure that would give a definite power edge over the new ys cdi.

I don't want to swing a bigger prop, as I think the 20" is good all around for aerobatics. I might be talked into going with a smaller diameter 4 blade or 3 blade in order to get the proper load, but I don't want too huge of a disk swinging up front. On my big DA-150 planes, I like the 3 blade rather than the larger 2 blade. I think it tracks better and snaps truer. I imagine the same would hold true on the 2M ships.

(in reply to OhD)

Post #: 180

RE: Dualsky 6360-12T props - 6/13/2008 4:13:41 AM

jbudd

Posts: 42
Joined: 12/6/2002
From: Quartz Hill, CA, USA
Status: offline

Here's another. Use BETTER bearings. All but two DualSkys I've seen were very noisy due to the bad (stock) bearings, in fact, many of them were louder than a YS powered plane!

_____________________________

Thx, Jerry

(in reply to 2dogrc)

Post #: 181

RE: Dualsky 6360-12T props - 6/13/2008 4:14:58 AM

2dogrc

Posts: 30
Joined: 4/27/2005
From: Fort Woth, TX, USA
Status: offline

The bearings will definitely be better in version 2!

(in reply to jbudd)

Post #: 182

RE: Dualsky 6360-12T props - 6/13/2008 6:17:15 AM

shannah

Posts: 212
Joined: 9/6/2004
From: placentia, CA, USA
Status: online

I've had great luck with the VXB ceramic bearings. Much better performance overall and they have been very quiet and consistent. They should be able to switch to something like that with no problem.

(in reply to 2dogrc)

Post #: 183

RE: Dualsky 6360-12T props - 6/13/2008 1:34:53 PM

mups53

Posts: 1088
Joined: 1/15/2002
From: Hoffman Estates, IL, USA
Status: offline

Is Dualsky giving any indication of the lead time for version #2. I applaud their proactive approach to a known problem. It will be interesting to see the developments that they take. I would suspect that the new version will have a fair price increase with it. Thanks, Mike

(in reply to 2dogrc)

Post #: 184

RE: Dualsky 6360-12T props - 6/13/2008 1:57:34 PM

2dogrc

Posts: 30
Joined: 4/27/2005
From: Fort Woth, TX, USA
Status: offline

Well,

AS for the ETA, I would say at least the end of July. That is the best I can do. It depends on how much is changed.

Mark
www.2dogrc.com

(in reply to mups53)

Post #: 185

RE: Dualsky 6360-12T props - 6/13/2008 2:19:31 PM

patternflyer1

Posts: 1308
Joined: 7/3/2003
From: Tracy, CA, USA
Status: offline

I don't think, we or DS should rush.. I'd rather get a better product.. And I also applaud DS for doing this, and Mark for letting us know. Most companies wouldn't do that. They'd change design, but continue to sell them at the same time.
I agree with Steve, his bearings do work fine and his is quiet.. Also, the support idea like the Hacker is great.. It's really the way it should be.. More power? Well, the 4 11T's that I went through had plenty IMO.. Not sure I would want more.

This does suck though, I am now left scrambling for a new motor for the nats that I will like as much as the 11T, but I'm sure it'll be worth the wait.

Chris

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Team Airtronics

(in reply to 2dogrc)

Post #: 186

RE: Dualsky 6360-12T props - 6/13/2008 5:00:47 PM

shannah

Posts: 212
Joined: 9/6/2004
From: placentia, CA, USA
Status: online

I would also like to join the others in applauding Dualsky's proactive approach. I think this is rather unprecedented. I don't recall seeing a manufacturer actively discuss issues with the users, quickly embark on an improvement program, and stop making the old product before the alternative is available. I'm like Chris, I'll happily wait a bit for the product. The 63 series motors were pretty good and I like mine, but knowing that there may be a better one coming is really good news.

I do want more power, however.

After all, that F-09 sequence takes some real grunt and I'd like to be able to have enough reserve power so I don't have to fly WOT for most of it. I haven't tried the 11T, but it would really need to have a dramatic increase over the 12T in order to give what is needed.

(in reply to patternflyer1)

Post #: 187

RE: Dualsky 6360-12T props - 6/14/2008 3:37:51 AM

woodie

Posts: 320
Joined: 6/10/2002
From: Placerville, CA, USA
Status: online

quote:

ORIGINAL: patternflyer1

I don't think, we or DS should rush.. I'd rather get a better product.. And I also applaud DS for doing this, and Mark for letting us know. Most companies wouldn't do that. They'd change design, but continue to sell them at the same time.
I agree with Steve, his bearings do work fine and his is quiet.. Also, the support idea like the Hacker is great.. It's really the way it should be.. More power? Well, the 4 11T's that I went through had plenty IMO.. Not sure I would want more.

This does suck though, I am now left scrambling for a new motor for the nats that I will like as much as the 11T, but I'm sure it'll be worth the wait.

Chris

Chris, I have a backup 11T you are welcome to borrow for the Nats. It has performed flawlessly for me as well as Terry Walker and Bruce Thompson when they borrowed it.
Woodie (aka Don)

(in reply to patternflyer1)

Post #: 188

RE: Dualsky 6360-12T props - 6/15/2008 3:57:35 PM

patternflyer1

Posts: 1308
Joined: 7/3/2003
From: Tracy, CA, USA
Status: offline

I'll keep that in mind.. Thanks Don.

C

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Team Airtronics

(in reply to woodie)

Post #: 189

RE: Dualsky 6360-12T props - 7/30/2008 8:00:55 AM

Paul_K

Posts: 47
Joined: 8/10/2005
From: Trondheim, NORWAY
Status: offline

A little update on my experience with the DS motors.

As written in previous posts I had a DS 11T that developed cracks in the can arms, and also in the can itself. My replacement DS 11T have started to make the same half throttle noise after about 60 flights, and inspection revealed a beginning crack in the can on this motor as well. This motor, as well as my first one, have never been abused in any way.

In spite of this I will sure try the redesigned Dualsky F3A-motor when available. When the two 11T motors worked, they worked very well. If Dualsky can put some extra strength in, without adding too much weigth, they will have a winner.

Paul

(in reply to patternflyer1)

Post #: 190

RE: Dualsky 6360-12T props - 7/30/2008 4:32:45 PM