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Old Mar 08, 2012, 01:17 AM
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United States, MO, Springfield
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holy shi... 50%? that cant be cheap even 30% heli blend runs me 20 to 30 bucks a gallon
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Old Mar 08, 2012, 11:56 AM
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Grand Rapids, MI
Joined Jun 2005
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No kidding! You should post some video, it must screeeeeeeeeeam!

So it was built from scratch then? Very nice work to both of you!
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Old Mar 08, 2012, 12:44 PM
Scale Builder
United States, AZ, Litchfield Park
Joined Jul 2002
2,467 Posts
Quote:
Originally Posted by Elios000 View Post
holy shi... 50%? that cant be cheap even 30% heli blend runs me 20 to 30 bucks a gallon
No, not cheap, but Robert flies it with "only" 30% nitro most of the time! The higher nitro stuff is generally just for racing.

Quote:
Originally Posted by Hornetnz View Post
No kidding! You should post some video, it must screeeeeeeeeeam!
So it was built from scratch then? Very nice work to both of you!
Yep, scratch built. Below are a few construction pics. I'm still looking for somebody to shoot some digital video that has a camera with enough lens to get good flight shots.



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Old Mar 08, 2012, 03:44 PM
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Grand Rapids, MI
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Ahhh, someone has a lazer cutter! Lucky man.
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Old Mar 08, 2012, 03:50 PM
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United States, AZ, Litchfield Park
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Quote:
Originally Posted by Hornetnz View Post
Ahhh, someone has a lazer cutter! Lucky man.
No, but someone knows somebody who does! I've become very spoiled over the last 10 years and I'm not sure I could scratch build models any more without a laser cutter! I think I'd just send the parts out to a cutting service if I did not have access to a laser myself.
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Old Mar 08, 2012, 05:36 PM
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United States, MO, Springfield
Joined Jul 2010
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Originally Posted by Hornetnz View Post
Ahhh, someone has a lazer cutter! Lucky man.
there are a few places on line that will laser cut for you if you can make the CAD drawing for it
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Old Mar 09, 2012, 05:19 AM
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Australia
Joined Apr 2009
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I was amused by this, and thought I should share it with you in case you may not have already seen it and would enjoy a little laugh!

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Old Apr 14, 2012, 09:09 PM
Dir. of Innovation at Alert 5
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United States, FL, Fort Lauderdale
Joined Jul 2011
652 Posts
Here are a few pics of my Siren taken at my local airfield...
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Old Apr 14, 2012, 10:28 PM
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USA, GA, Atlanta
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few pics of my EF 70" Extra 300
pics by WebDr
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Old Apr 22, 2012, 04:29 PM
Dir. of Innovation at Alert 5
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United States, FL, Fort Lauderdale
Joined Jul 2011
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Here are some progress shots of a FPV/Drone my company is constructing...
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Old Apr 23, 2012, 05:11 PM
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United States, MO, Springfield
Joined Jul 2010
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why even have the vertical fins i wouldnt think it would need them
and why so much sweep

/armchair aerodynamicist

i spend WAY to much time playing with plane maker in X-Plane lol
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Old Apr 23, 2012, 09:01 PM
Dir. of Innovation at Alert 5
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United States, FL, Fort Lauderdale
Joined Jul 2011
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Quote:
Originally Posted by Elios000 View Post
why even have the vertical fins i wouldnt think it would need them
and why so much sweep

/armchair aerodynamicist

i spend WAY to much time playing with plane maker in X-Plane lol
We flew prototypes with "winglets" and no rudder and had good success with all up weights up to 6.75 lbs. We wanted to minimize the "Dutch Roll" effect and have rudders as well, so... based on a successful air frame prototype, we added rudders. As far as the sweep in the wing, its not as dramatic as you would expect. It balanced quite well with (2) 3S 5000's and a full compliment of electronics (GoPro, FLIR unit, Eagle Tree, etc...) and has an airfoil shape derivative of the venerable DLG-1000. Her flight envelope is very broad and is an excellent S.A.R. / FPV platform... stay tuned for updates and thank you for your interest.
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Old Apr 23, 2012, 09:04 PM
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USA, GA, Atlanta
Joined Nov 2008
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Looks cool Demon!

How big is that thing? Can you give us any projected specs?
AUW, ws, and power system... what is the name of your company?
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Old Apr 24, 2012, 12:43 AM
Dir. of Innovation at Alert 5
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United States, FL, Fort Lauderdale
Joined Jul 2011
652 Posts
Quote:
Originally Posted by bsbauman View Post
Looks cool Demon!

How big is that thing? Can you give us any projected specs?
AUW, ws, and power system... what is the name of your company?
Thank you. We have the following specs so far:
Hollow form monocoque air frame in Carbon or Fiberglass (proprietary formation)
55" WS
4.5lbs target AUW (to keep in line with proposed UAV/Drone max AUW proposed by the FAA for the May/June window)
The power plant varies: 900kV<2000kV Outrunner w/ 10" prop
(2) 3S 5000 mAh (up to 45 minutes to over 1 hour of flight time depending on conditions and flight style)...
Maiden flights scheduled for June...
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Old Apr 24, 2012, 12:51 AM
DFC~ We Do Flyin' Right
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USA, GA, Atlanta
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very cool
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