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Old Jan 19, 2009, 06:23 PM
It only takes one good idea
dag214's Avatar
Fishers, Indiana
Joined Oct 2004
6,006 Posts
Quote:
Originally Posted by Draknkep
Hi Dag....


You are probably right about sharing...but I figured I would just put the link in...what can I say.. I'm paranoid..

SteveT
You may be smarter than me, I didn't think about it, but everyone has been sharing drawings that the Russian have. Oh well, we will see if anyone cares.

That is a cool fan, and cheap.

DAG
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Last edited by dag214; Jan 19, 2009 at 06:55 PM.
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Old Jan 19, 2009, 06:25 PM
HAL... Open the damn doors!
jfetter's Avatar
Miramar, Florida
Joined Jul 2007
8,504 Posts
Quote:
Originally Posted by Tim Farrar
Why cant regular props just be put on backward and the motors run in reverse?

Seeya, Tim
No reason I know of, I called my guru to get his reaction, he said no reason as long as the leading edge is leading it doesn't know the difference...

Jack
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Old Jan 19, 2009, 06:34 PM
HAL... Open the damn doors!
jfetter's Avatar
Miramar, Florida
Joined Jul 2007
8,504 Posts
Quote:
Originally Posted by dag214
I spent about a month looking for good info on the XB-35

I have this drawing in a huge format if you want it.

There is enough info out there to come close to getting it right, but the trick will be making it stable, to do so I think it needs a wingspan of, Oh lets say 285" .

DAG
Yeah, I wonder if that will fit in the cardboard box I'll be living in after Wifey kicks me out.

Seriously, given the Counter-Rotating AXI is sized at 2,600 watts x 2 (or 5,400 watts for both) and there would be 4 of them (that's 21,600 watts!) the plane might need to be 285"! That's a massive amount of power and let's see (4 motors @ $1,100, 8 ESC's @ $250, 8 x 8S LiPo's $350) a whopping $9,200 just for the power system alone. Might be biting off more than my wallet can chew...

Jack
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Old Jan 19, 2009, 06:45 PM
It only takes one good idea
dag214's Avatar
Fishers, Indiana
Joined Oct 2004
6,006 Posts
What I got done tonight, not much because work has me swamped.

I decided to to make another pair of gear swing arms. These look much better. This is a prime coat that will get sanded.

DAG
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Old Jan 19, 2009, 06:51 PM
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Angelo's Avatar
Chicago, IL
Joined Nov 1999
2,058 Posts
Quote:
Originally Posted by sneasle
No.. that would be like adding the Gremlin to his build.
I think you mean "Goblin". http://en.wikipedia.org/wiki/XF-85_Goblin
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Old Jan 19, 2009, 07:12 PM
War Eagle!
sneasle's Avatar
United States, AL, Huntsville
Joined Sep 2006
2,901 Posts
Quote:
Originally Posted by Angelo

Oops .



Random question for the group. I'm looking for something to use as an epoxy filler to do some work on a boat hull. Since there seems to be a whole lot of skill here, I was wondering if ya'll woudl provide some input.

I was thinking about using this stuff:
Linky

Any thoughts or comments on other products? Ideally, it needs to be somethign that I can buy online and will make the epoxy easy to sand.
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Old Jan 19, 2009, 08:12 PM
It only takes one good idea
dag214's Avatar
Fishers, Indiana
Joined Oct 2004
6,006 Posts
Quote:
Originally Posted by sneasle
Oops .



Random question for the group. I'm looking for something to use as an epoxy filler to do some work on a boat hull. Since there seems to be a whole lot of skill here, I was wondering if ya'll woudl provide some input.

I was thinking about using this stuff:
Linky

Any thoughts or comments on other products? Ideally, it needs to be somethign that I can buy online and will make the epoxy easy to sand.
Never heard of the stuff, looks good though. I use Alpha Poxy and micro balloons.

DAG
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Old Jan 19, 2009, 08:24 PM
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RiBell's Avatar
Canada, BC, Abbotsford
Joined Jan 2003
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Quote:
Originally Posted by Thekid3418
Although, would 30 lbs do much with this monster? Maybe it would help it "glide with style" instead of just gliding (taken from a classic movie ).
Wasn't that line "Falling with style"
Rick
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Old Jan 19, 2009, 08:45 PM
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RiBell's Avatar
Canada, BC, Abbotsford
Joined Jan 2003
4,752 Posts
B35 thoughts

Quote:
Originally Posted by jfetter
Yeah, I wonder if that will fit in the cardboard box I'll be living in after Wifey kicks me out.

Seriously, given the Counter-Rotating AXI is sized at 2,600 watts x 2 (or 5,400 watts for both) and there would be 4 of them (that's 21,600 watts!) the plane might need to be 285"! That's a massive amount of power and let's see (4 motors @ $1,100, 8 ESC's @ $250, 8 x 8S LiPo's $350) a whopping $9,200 just for the power system alone. Might be biting off more than my wallet can chew...

Jack
Axi make some hollow shaft 2212 motors to go with those variable pitch props for the small 3D foamies. A control rod is supposed to go through the center of the motor for the prop. It's probably too small to have a prop driveshaft go through, At $50.00 a motor and much smaller ESC's The gears in the head start making noise.
Rick
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Old Jan 19, 2009, 09:37 PM
War Eagle!
sneasle's Avatar
United States, AL, Huntsville
Joined Sep 2006
2,901 Posts
Hobby city has a counter rotating double motor setup that is smaller then the Axi. Let me see if I can find it.


Here it is:

Linky

It might be too small for you, but it's a heck of a lot cheaper.

It's a 300W system, so with 4 of them my mental math says something like a 70" wing maybe?
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Last edited by sneasle; Jan 19, 2009 at 09:43 PM.
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Old Jan 19, 2009, 10:27 PM
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Hepdog's Avatar
Stonewall, MB, Can
Joined Jul 2004
2,872 Posts
Quote:
Originally Posted by dag214
I spent about a month looking for good info on the XB-35

I have this drawing in a huge format if you want it.

There is enough info out there to come close to getting it right, but the trick will be making it stable, to do so I think it needs a wingspan of, Oh lets say 285" .

DAG
When you are ready to tackle that big flying wing give me a call. Making it stable isnt impossible
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Old Jan 19, 2009, 10:48 PM
War Eagle!
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United States, AL, Huntsville
Joined Sep 2006
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just make it a big zagi or something
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Old Jan 19, 2009, 11:20 PM
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Angelo's Avatar
Chicago, IL
Joined Nov 1999
2,058 Posts
Quote:
Originally Posted by sneasle
I'm looking for something to use as an epoxy filler to do some work on a boat hull.
Don't know much about epoxy use on boats, but one thing I heard a few years ago was that shorter cure epoxies are not waterproof, that if they are under water long enough they will soak through. You probably already know this, but I thought I'd mention that just in case.
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Old Jan 20, 2009, 12:00 AM
War Eagle!
sneasle's Avatar
United States, AL, Huntsville
Joined Sep 2006
2,901 Posts
Me and short cure epoxy don't get along well anyways
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Old Jan 20, 2009, 12:17 AM
I fly, therefore, I crash!!!
SteveT.'s Avatar
San Jose, CA
Joined Jan 2008
27,154 Posts
Hi Guys...

Himax contra-rotating motors

SteveT
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