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Old Jun 02, 2012, 08:36 PM
deltas are cool
AIR SALLY's Avatar
Tehachapi ,CA.
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AL oh no come back come back......they'll relaese him after a few classes of wine
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Old Jun 02, 2012, 09:22 PM
Lee Liddle
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Carrollton, Tx
Joined Dec 2006
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Originally Posted by AIR SALLY View Post
AL oh no come back come back......they'll relaese him after a few classes of wine

Or take away the Paxal
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Old Jun 02, 2012, 10:28 PM
Fly allot, Crash allot, next?
United States, CA, Corona
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Ralph, Lakr Havasu, 5 hours away from you.

Lee, I laugh at myself.
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Old Jun 02, 2012, 11:52 PM
Registered User
United States, FL, Coral Springs
Joined Jan 2007
502 Posts
I'm just installing thrust tube, Wonder what the diameter the exit of the tube should be?
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Old Jun 03, 2012, 12:24 AM
Hey Ya'll!! Watch THIS!!
Michael Paxton's Avatar
Nashville TN.
Joined Mar 2006
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Originally Posted by falconjet50 View Post
I'm just installing thrust tube, Wonder what the diameter the exit of the tube should be?
What fan?
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Old Jun 03, 2012, 12:48 AM
Registered User
United States, FL, Coral Springs
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Originally Posted by Michael Paxton View Post
What fan?
Stock Fan HET 90MM 9305
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Old Jun 03, 2012, 12:58 AM
Robert Wagoner's Avatar
Tucson, Arizona, USA
Joined Dec 1999
1,552 Posts
Stab dev

As we proceed were looking for some more constructive opinions at this point. 2 - 2Kg metal gear servos in the center with 3 spread out hinges on each side.

Stab 1 and 2 only require new control surfaces but Stab 3 would need a new front stab mold, not a problem if that's what's needed.

--RW
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Last edited by Robert Wagoner; Jun 03, 2012 at 03:04 AM.
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Old Jun 03, 2012, 01:37 AM
3DHOG
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USA, CA, Aromas
Joined Sep 2010
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by far I think #3 is the best aerodynamically and best looking, I think #1 and #2 the only real problem with them is the size of the elevator looks to be drastically increased, assuming the stab tips are stock length, well the more I look at 1 and 2 it does look like the tips were cut back to meet the elev so if thats the case they should all work good my order of preferance is 3,2,1 and 1 is growing on my the more I look at it lol!!
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Old Jun 03, 2012, 01:40 AM
Fly allot, Crash allot, next?
United States, CA, Corona
Joined Feb 2006
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I was looking for the same answer, was going to guess at 70 inches, as I forgot the computation.


Quote:
Originally Posted by falconjet50 View Post
I'm just installing thrust tube, Wonder what the diameter the exit of the tube should be?
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Old Jun 03, 2012, 01:41 AM
3DHOG
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USA, CA, Aromas
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Quote:
Originally Posted by falconjet50 View Post
Stock Fan HET 90MM 9305
you didn't say v1 or v2 9305 but I would think 70mm is a good place to start
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Old Jun 03, 2012, 01:46 AM
3DHOG
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USA, CA, Aromas
Joined Sep 2010
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this is the FSA's for v2 9305 in mm's....this will get you close. if it were mine I would be going with 69mm


Exhaust Diameter (single outlet)
100% FSA 78.73214083
95% FSA 76.7385985
90% FSA 74.69186703
85% FSA 72.58744726
80% FSA 70.42016757
75% FSA 68.18403405
70% FSA 65.87203504
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Old Jun 03, 2012, 02:00 AM
Hey Ya'll!! Watch THIS!!
Michael Paxton's Avatar
Nashville TN.
Joined Mar 2006
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Quote:
Originally Posted by Robert Wagoner View Post
As we proceed were looking for some more constructive opinions at this point. 2 - 2Kg metal gear servos in the center with 3 spread out hinges on each side.

Stab 1 and 2 only require new control surfaces but Stab 3 would need a new front stab mold, not a problem if that's what's needed.

--RW
1 and 2 look viable. But 3 looks like you'll have to change the servo location because of the ele angle.
3 is definitely best looking in my book tho.
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Old Jun 03, 2012, 03:07 AM
Robert Wagoner's Avatar
Tucson, Arizona, USA
Joined Dec 1999
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Originally Posted by Michael Paxton View Post
1 and 2 look viable. But 3 looks like you'll have to change the servo location because of the ele angle.
3 is definitely best looking in my book tho.
jcdfrd & Michael: Thanks for the input, I updated #3 for the servo angles.

--RW
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Last edited by Robert Wagoner; Jun 03, 2012 at 03:14 AM. Reason: Mentioned wrong person. Still Thanks for posting scalefan.
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Old Jun 03, 2012, 03:08 AM
Robert Wagoner's Avatar
Tucson, Arizona, USA
Joined Dec 1999
1,552 Posts
Quote:
Originally Posted by jcdfrd View Post
by far I think #3 is the best aerodynamically and best looking, I think #1 and #2 the only real problem with them is the size of the elevator looks to be drastically increased, assuming the stab tips are stock length, well the more I look at 1 and 2 it does look like the tips were cut back to meet the elev so if thats the case they should all work good my order of preferance is 3,2,1 and 1 is growing on my the more I look at it lol!!
#1 & #2 have shorter tips.

--RW
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Old Jun 03, 2012, 03:16 AM
Extreme CNC Alloy EDF
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Australia
Joined Mar 2006
11,726 Posts
Number 1 is exactly what I was suggesting shape wise and is what I sent to HET over a week ago. I also suggested cutting the tips of the Stab off completely, and running the elevators all the way out, they dont need to be as wide then. It will also match the wing which has no solid tips either.

Plus having a centre section will increase the overall rigidity of the elevator assembly and if the centre section is solid wood inside, extending out through both elevators as a one piece LE then there should be plenty of strength there for hinges and horns.
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