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Old Apr 05, 2012, 09:29 PM
jetada is offline
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Quote:
Originally Posted by goldguy View Post
That's the one big problem with foamies, they breed like rabbits.
LOL! So true!

I'm just getting into scratchbuilts and I've already got a litter of foamies!

The 20" Nutball is my next build!
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Old Apr 06, 2012, 06:15 AM
space 1 is offline
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last one


Quote:
Originally Posted by FlyingW View Post
Saw this for sale here in Ezone. Wow.
I got last one ever made. Worked with his son thats's his brother in pic. Ther dad was the pioneer in hot wire foam cuting. Oh we in detroit' One was in movie any one know of it let me know
Last edited by space 1; Apr 06, 2012 at 06:26 AM.
Old Apr 06, 2012, 09:06 AM
joseico90 is offline
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Lets break some props :D
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@danford1


@danford1

here you can see the air intake, battery slot, new prop etc.

As I held it in my hands I noticed the motor mount is a bit loose and needs attention.

Next week Lord willing I'll make a start on my next NB.

-Will probably have..

-17" diameter

-1x Blue wonder, 10" prop and 2 cell 350's

-Depron box fuselage, all gear inside as usual.

-Twin rudders

-Bottom side..small rear fins for added directional stability.(maybe)
Old Apr 06, 2012, 10:19 AM
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"-1x Blue wonder, 10" prop and 2 cell 350's "

What kv is that BW?
What pitch on the 10" prop ?

Seems hard to believe that tiny motor can swing a 10" prop and not burn up.
I have a BW 1300. I'm still experimenting with 2s -3s, 8" - 9" props.

Thanks for the pictures. I really like the clean look with servos , ESC and wires hidden.

Danford1
Old Apr 06, 2012, 12:50 PM
joseico90 is offline
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Quote:
Originally Posted by danford1 View Post
"-1x Blue wonder, 10" prop and 2 cell 350's "

What kv is that BW?
What pitch on the 10" prop ?

Seems hard to believe that tiny motor can swing a 10" prop and not burn up.
I have a BW 1300. I'm still experimenting with 2s -3s, 8" - 9" props.

Thanks for the pictures. I really like the clean look with servos , ESC and wires hidden.

Danford1
-It's a 1300kv (Max Load: 7.5A)

-GWS EP Propeller 10x4.7

-Like you I've also used 8-9" props till now..but..

- On this prop I believe it should be pulling a max of 6.5 Amps, giving 11.5 ounces of thrust on two cells. 3 cells would be too much on this prop.

-This 22" is such a light floater that the battery lasts ages, in the end I land the thing out of boredness, most the time I only use one or two of my four 350's batteries when I go flying

-Yep, me too, I dislike all those bits and cables hanging out of our foamies, hence my fuselages lately.

I forgot to mention that my next Depron NB will incorporate interlocking tabs on the fuselage panels, rudder/s etc

I think it will be quicker and easier than making the fus out of pink foam and having to hollow it etc. Even the battery will be inside , with a hatch for access.
Last edited by joseico90; Apr 06, 2012 at 02:58 PM.
Old Apr 06, 2012, 10:59 PM
OTTOFLYS is offline
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I use a 10x4.7 on my epp yak with a similar motor (auw is just under 8 oz)and it works well on 2s but I wouldn't even consider 3s. its garenteed to fail
Old Apr 07, 2012, 03:53 AM
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using the same motor on 3 cells with an 8x4 prop gives 14oz thrust at around that 6A
Old Apr 08, 2012, 11:46 AM
joseico90 is offline
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Toy Nutball for a 3 year old boy


Just made this one as a toy for our friend's 3 y/o boy. (from packaging found in a parcel, looks like EPP or similar)

He likes it bless him.
Old Apr 08, 2012, 11:52 AM
kman24 is online now
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How could he not like it, looks great

Kman
Old Apr 08, 2012, 12:16 PM
joseico90 is offline
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thanx..so far still in one piece..hope it lasts..easy to repair anyway..there is no glue just tape and double side tape to hold the panels.
Old Apr 08, 2012, 07:46 PM
danford1 is offline
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Where is the CG? 25 % back or further back?

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Old Apr 09, 2012, 04:11 AM
joseico90 is offline
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Quote:
Originally Posted by danford1 View Post
Where is the CG? 25 % back or further back?

Danford1
Usually at 25%, then adjust to suit if required. Some of us like it a bit rearwards for hovering etc.
Old Apr 09, 2012, 11:13 AM
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I meant on the hand toss nutball you made for the child.
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Old Apr 09, 2012, 02:26 PM
joseico90 is offline
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Quote:
Originally Posted by danford1 View Post
I meant on the hand toss nutball you made for the child.
Danford1
Didn't bother with that yet..he's just happy playing with it.
Old Apr 09, 2012, 03:47 PM
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This is my variant of the NutBall:
- 7mm Depron
- Diameter 500mm (~20")
- AUW 200g (~7oz)
- Vertical stabilizer enlarged by 20%

- TURNIGY 28-22 1400kv motor
- 28mm GWS motor mount for 10x10mm stick
- GWS DD-8040 8x4" EP propeller
- TURNIGY Plush 10A ESC
- 2S1P 750 mAh LiPo
- 2 x HXT900 1.6kg/cm servos

Thanks, @goldguy!
Last edited by jaron; Apr 11, 2012 at 03:25 PM. Reason: Added Depron thickness


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