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Old Feb 14, 2010, 10:57 AM
deltas are cool
AIR SALLY's Avatar
Tehachapi ,CA.
Joined Apr 2006
20,527 Posts
sweet i got your nacelle you got my fan
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Old Feb 14, 2010, 11:54 AM
Lee Liddle
Knife Liddle's Avatar
Carrollton, Tx
Joined Dec 2006
7,890 Posts
logging on, looks good on the full Falcon airframe too.
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Old Feb 15, 2010, 11:28 AM
Registered User
Joined Jan 2010
28 Posts
How difficult would it be to put the fan inside the fuselage?
Air intake and thrust tube would be an obvious challenge.
Just a random thought.

jim
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Old Feb 15, 2010, 05:08 PM
deltas are cool
AIR SALLY's Avatar
Tehachapi ,CA.
Joined Apr 2006
20,527 Posts
there is no way to put a 5" fan inside the fuse this plane is set up to have the motor mounted on the mount section at the rear of the plane. stock they are set up for a 120 glow motor and prop.
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Old Feb 16, 2010, 08:37 AM
Airshow Joe
rccrazee's Avatar
N.W. Detroit Suburbs
Joined Feb 2009
315 Posts
I just picked up a DS-94 and need a nacelle for my Falcon!
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Old Feb 16, 2010, 10:51 AM
deltas are cool
AIR SALLY's Avatar
Tehachapi ,CA.
Joined Apr 2006
20,527 Posts
What is the O.D. of the shroud? my nacell fits a dynamax ...@127 mm i think. i might be able to make a different piece for the inlet ring mold that would fit ,
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Old Feb 16, 2010, 02:14 PM
Renegade Fun Forever!!
rvincent's Avatar
Fontana, California, United States
Joined Jul 2004
27,252 Posts
What servos are you guys using in the rear of this plane for elevators and rudders?
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Old Feb 16, 2010, 02:32 PM
Watt me worry?
Madmax1965's Avatar
Florida
Joined Mar 2006
3,806 Posts
I am using Futaba S9650 Digital Mini Servo with two ball bearings for the elevator servos...........63 oz-in (4.5 kg/cm) @ 6.0V each.
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Old Feb 16, 2010, 02:34 PM
Renegade Fun Forever!!
rvincent's Avatar
Fontana, California, United States
Joined Jul 2004
27,252 Posts
What's the torque rating on those Max? And are they Metal gears?
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Old Feb 16, 2010, 02:37 PM
Watt me worry?
Madmax1965's Avatar
Florida
Joined Mar 2006
3,806 Posts
Bob here you go:

http://www3.towerhobbies.com/cgi-bin...?&I=LXDTB4&P=M

I have small Jr MN-48 servos on rudder..........48 oz/in @ 4.8V
Spektrum DS821 on flaps. 72 oz/in @ 4.8v, 88 oz/in @6v
Tower TS-150 digital metal gear on ailerons......... 193 oz-in @ 6 volts
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Last edited by Madmax1965; Feb 16, 2010 at 03:11 PM. Reason: added servo info
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Old Feb 17, 2010, 03:39 PM
John Green
USA, FL, St Petersburg
Joined Dec 2007
616 Posts
I decided to try a different tack on the nacalle mount. The outside of the nacalle matches in size a piece of Sch. 40 6" pipe, so I used that as an inside mould for a fiberglass base. So far the plane fully equipped except for power system and batteries is 10.95#. Ailerons, flaps, elevator( 2 servo), Robart retracts with 1/2" struts, brakes etc. The nacalle with fan and motor and mount is 2.90#. Using a Scorpion/ Dynamax conversion probably on 12S XPS 35c batteries and CC HV 110 esc.
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Last edited by PlumberJohn; Aug 14, 2012 at 10:40 PM.
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Old Feb 17, 2010, 05:15 PM
Renegade Fun Forever!!
rvincent's Avatar
Fontana, California, United States
Joined Jul 2004
27,252 Posts
It looks great John, but I worry that there might not be enough to hold on the plane? These thing really pull And to think it's only on there with a couple of screws in the center would make me worry about torsional stress in flight?
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Old Feb 17, 2010, 09:09 PM
John Green
USA, FL, St Petersburg
Joined Dec 2007
616 Posts
I plan on bolting it down through the engine mount block from the underside. I plan on filling the wedge space below the cylinder of the nacelle with a nice fillet, so it will have about 12sq. in of bearing area to bolt through. I plan on running a tube or two through the fillet to thread the motor wires from the ESC in the fuse back to the motor to keep them mostly hidden. The fiberglass mount so far would hold up to a 120 two stroke being bolted to it and run, so all together it appears to be a strong mount with a more elegant shape, maybe.
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Old Feb 17, 2010, 09:13 PM
Renegade Fun Forever!!
rvincent's Avatar
Fontana, California, United States
Joined Jul 2004
27,252 Posts
Nice
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Old Feb 19, 2010, 01:17 PM
deltas are cool
AIR SALLY's Avatar
Tehachapi ,CA.
Joined Apr 2006
20,527 Posts
John great idea ...im might try something like that ..also but an external doubler on the side of the fuse back there by the motor mount. Racer 1 has seen cracks back there .when i get home from Hawai'i i'll post pics .
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