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RE: the unofficial home of the dumas dauntless - 11/15/2012 12:41 AM   
Rich404



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Status: offline 		Hi captains,

Here are pictures of today's run in Old Greenwich Connecticut..

Note how the boat runs at speed...the entire forecastle area is out of the water...this started after removing the 4 large underwater scoops....she is also much faster now. When I removed the scoops I also started adding furniture inside the boat which I thought would lower the bow but it seems unphased by the added weight. Also note how the stern sits a bit higher with the stern lead weight removed...and a pretty cool wake... All good things...

-Rich.

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< Message edited by Rich404 -- 11/16/2012 3:37 PM >

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RE: the unofficial home of the dumas dauntless - 11/15/2012 1:13 AM   
Rich404



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Status: offline 		And one more update....

The other night I decided to see what Dauntless weighs so I stood on a scale noted my weight and afterwards picked up Dauntless with batteries installed and noted the weight. Then I subtracted the difference and got her weight. The Dauntless weighed in at 24.6 pounds. She is right on track with my original 27lb estimate.

-Rich.

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RE: the unofficial home of the dumas dauntless - 11/15/2012 1:38 AM   
Rich404



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Status: offline 		Hey Bill....

The Dauntless is ready for another run tomorrow if you want to join me!! I will cal you in the morning to confirm!

-Rich.

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RE: the unofficial home of the dumas dauntless - 11/15/2012 10:20 PM   
Sound Sailor


 

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From: South Salem, NY, USA
Status: offline 		Here is a short  video of todays run at Binney Park of Capt Rich's vessel. Pond was overflowing and a lot of debris from Sandy.

Bill

http://youtu.be/9RdtK7APV20

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RE: the unofficial home of the dumas dauntless - 11/16/2012 2:40 AM   
Rich404



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Status: offline 		Thanks Bill!!


She was pretty swift on the initial takeoff but I noticed that she slowed down when she was making the turn...around there I remember a huge floating patch of leaves..

-Rich.


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RE: the unofficial home of the dumas dauntless - 11/16/2012 3:03 AM   
Rich404



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Status: offline 		Hi captains,

Today Bill & I met up for a run...Here are today's pictures taken in Old Greenwich Connecticut..

-Rich.

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< Message edited by Rich404 -- 11/16/2012 3:05 PM >

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RE: the unofficial home of the dumas dauntless - 11/16/2012 4:57 AM   
dauntlessfan



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Status: offline 		Wouldn't you know Ijust spent 15 minutes posting detailed commentary and got some "We're Sorry..." message and all that text is gone.

Anyway... in summary... great boats, beautiful scenery, and Rich's boat offically hauls some serious **** .

Oh and I can't expand any of the pics on the first row of those pic posts... anyone else?

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RE: the unofficial home of the dumas dauntless - 11/16/2012 9:37 AM   
Hydro Junkie


 

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Status: offline 		I couldn't get the right two on the top row to open. Is it just me or is there little evidence of Sandy in any of those pictures? My trip to Connecticut didn't show me much more than power outages though, due to my not going down by the coast, that might account for it

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RE: the unofficial home of the dumas dauntless - 11/16/2012 11:37 AM   
Sound Sailor


 

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Status: offline 		Most of the damage in that immediate area was from down trees  and wires. In the park itself there is still some cleanup of down trees which is why you see some Parks Dept trucks in the background. On tthe other side of the pond there is  a downed birch tree in the water. On the shore area of the town there was tidal flooding of several streets and homes. That is not real uncommon in those areas but could have been worse but for the surge and high tide not being at the same time there. Most trees that came down there and elsewhere away from the shore were very large, old pines etc. The park itself was completely under water but it is 2 weeks later and the park maintenance crew have done a lot of cleanup. Connecticut got very little rain during Sandy, just high winds.

Bill

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RE: the unofficial home of the dumas dauntless - 11/16/2012 12:49 PM   
Hydro Junkie


 

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Status: offline 		I waited out Sandy in Quincy and we had high winds and heavy rain. From what I could see, the damage was mostly power lines and tree limbs down. I guess we were lucky, Cape Cod protected us from the storm surge

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RE: the unofficial home of the dumas dauntless - 11/16/2012 3:15 PM   
Rich404



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Status: offline 		Hi captains,

I went ahead and deleted all the pictures that were not cooperating above and reposted them. They seem to work this time..Hopefully it will be better for all to see.

Sorry about the vanishing comentary Dauntlessfan. I had that happen to me a few times so now out of habit I highlight the entire text and copy it before submitting...This has saved me from redo's so many times...

The boat is much faster than in the past. In the short video the low voltage alarms were going off so she wasn't performing at 100% then leaves fouled the props when I turned the boat around...I am happy with her speed and seeing this big girl get up on plane is really cool.

I have to lay up Dauntless for a while. Her sound module is defective and I have to disconnect it and send it back to Canada. The speed controls are currently wired into the module. The defect was that when I turned on the sounds there was a piercing feedback sound coming from the speaker. According to the designer it should not be..

-Rich.

< Message edited by Rich404 -- 11/16/2012 3:38 PM >

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RE: the unofficial home of the dumas dauntless - 11/16/2012 3:19 PM   
Rich404



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quote:

ORIGINAL: Hydro Junkie

I couldn't get the right two on the top row to open. Is it just me or is there little evidence of Sandy in any of those pictures? My trip to Connecticut didn't show me much more than power outages though, due to my not going down by the coast, that might account for it


Hey Hydro...If you are ever in the area let me know & perhaps we can make arrangements to go sailing..

-Rich.


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RE: the unofficial home of the dumas dauntless - 11/17/2012 3:50 AM   
deep sky


 

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Status: online 		hi captains i hope all is well here is my latest pix i got somemore work done in the cockpit looking better all the time.i still dont know if i need 2 6 volt batt per esc or 1 12 volt batt for each esc or 2 12 volt batt per esc on these evx-2s any way moveing ahead

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RE: the unofficial home of the dumas dauntless - 11/17/2012 6:53 AM   
deep sky


 

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Status: online 		i think i got it i need a total of four 6-8.4v packs so i get 16.8 volts.2 per esc i was  thinking that the graupner 700 bb turbo 9.6 would not handle the 16.8 but  the specks say it will

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RE: the unofficial home of the dumas dauntless - 11/17/2012 7:07 AM   
dauntlessfan



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quote:

ORIGINAL: deep sky

i think i got it i need a total of four 6-8.4v packs so i get 16.8 volts.2 per esc i was  thinking that the graupner 700 bb turbo 9.6 would not handle the 16.8 but  the specks say it will



Yes sir, that setup will be "plug-n-play" and those 700 bb turbo 9.6 motors should push her along very nicely! Your boat is looking remarkable too, by the way!

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RE: the unofficial home of the dumas dauntless - 11/17/2012 7:36 AM   
deep sky


 

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Status: online 		my only question is when i hook it all up there are 4 motor leads if i am only useing 2  1 for each motor do i need to change any wireing

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RE: the unofficial home of the dumas dauntless - 11/17/2012 11:54 AM   
Sound Sailor


 

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Status: offline 		More importantly you bettter see if your ESCs will handle that voltage or you are either going to burn them out or they will be shutting down all the time. Most Escs I have encountered will not take more than about 14v including the 208D.  Also with that voltage those motors and esc will run hot so you will need water cooling. I have those motors in my Dauntless and run them on 12 v.. You can run with 1-12v NIMH per motor and the larger the mah of the battery the more run time. If you put 2 12v IN PARALLEL per motor you are still running on 12v per motor but you double the running time. If money is an issue i would start with 1 per and add the second later.
Here is a pic of my setup of 2 12v per motor . (total of 4 ) They are stacked 2 high with the 2 on the left for the port motor and the 2 on the right for starboard. To wire them, as I told you before, Y harnesses are available either in series or parallel. Series doubles the voltage while parallel keeps same voltage but doubles run time. I don't think I can make it any clearer than that.

If you have seen the videos of my boat you will know it moves well with 1 1/2" props and this 12v setup. IMHO you are asking for problems if you go 16.8v even with the motors over any amount of time and i think Graupner and Mabucchi would tell you the same.

BTW I went the cheaper route with emergency gel pack batteries first and  they would appear to go dead quickly. After sitting a few minutes they would recover for a while and repeat the cycle. Wound up being a waste of money so I replaced them with this setup. If you look on Ebay you can find good deals on 12v nimh batteries. go for the most mah you can for the most run time. Notice mine are 4200 mah. Still cheaper than GOOD lipos.

pic of Y adapters One on left is parallel, one on right is series. Notice on left red to red and black to black On right notce one side  loops to other male  plug. Plug on bottom (female )goes to ESC the two males at the top to the 2 batteries.

Bill

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< Message edited by Sound Sailor -- 11/17/2012 1:06 PM >

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RE: the unofficial home of the dumas dauntless - 11/17/2012 2:51 PM   
dauntlessfan



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Status: offline 		No Deep you won't need to modify any wiring in the situation you described.

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RE: the unofficial home of the dumas dauntless - 11/17/2012 2:59 PM   
rblubaugh


 

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Status: offline 		Deep,

Don't know why but none of yur pictures will download?  Seems to be a system problem.

All Captains,

FYI, there's a new Dauntless kit available on fleabay at item number 150946814054.  It has 6 days to go, started 9 days ago at  $0.99 and is now only $56.  Running hardware kit is included in the sale, kit 2332.  Just in case you know someone looking for a kit.

Bob


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RE: the unofficial home of the dumas dauntless - 11/17/2012 3:07 PM   
Sound Sailor


 

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Status: offline 		????? He is talking about 4 motor leads when he really means 4 battery leads since "motor leads" would be from the esc to the motor. He said he was going  to use 4 batteries, 2 for each motor and each would be in series to get 16.8v.  DF,  are you saying you think he should be using 16.8 v to his esc and motor?  If so we don't agree but have at it and it will be interesting to see how it works out. 
 Maybe it's me who is missing something here so I'll leave it at that and not comment further.

Bill

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RE: the unofficial home of the dumas dauntless - 11/17/2012 3:36 PM   
dauntlessfan



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Status: offline 		Hi Bill, the EVX-2 is different from the typical ESC in that it has two battery input harnesses ( + and -) and two motor output harnesses ( + and -). It's advertised heavily by Traxxas as a 16.8 volt ESC since it can accept two 8.4 packs.

I'll post a few wiring diagrams tonight to clarify.

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RE: the unofficial home of the dumas dauntless - 11/17/2012 3:40 PM   
Sound Sailor


 

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Status: offline 		I see, I am not familiar with that esc (really different) but I still would not run those motors on 16.8 since that is probably the max with no load. I find it hard to believe they will last long and besides as we know the boat does not require that much voltage to run with those motors.

Bill

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RE: the unofficial home of the dumas dauntless - 11/17/2012 3:59 PM   
dauntlessfan



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Status: offline 		Yup I think 12 volts is probably the sweet spot both for the motors and this boat. I'll include that setup in the wiring diagrams.

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RE: the unofficial home of the dumas dauntless - 11/17/2012 4:02 PM   
Rich404



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quote:

ORIGINAL: dauntlessfan

Hi Bill, the EVX-2 is different from the typical ESC in that it has two battery input harnesses ( + and -) and two motor output harnesses ( + and -). It's advertised heavily by Traxxas as a 16.8 volt ESC since it can accept two 8.4 packs.

I'll post a few wiring diagrams tonight to clarify.


Hi Dauntlessfan,

So the speed control takes in 16.8V and the output is (2) 8.4V jacks for the two motors?

In a perfect world I still think he would have been better off with the Astroflight ESC's..IMHO.

-Rich.

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RE: the unofficial home of the dumas dauntless - 11/17/2012 4:52 PM   
dauntlessfan



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Status: offline 		Close but other way around, it takes in two batteries 6-8.4 volts and the output is double, up to 16.8V max. I'll clear it up by posting some wiring diagrams tonight.

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