The Mechanicals
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Here are some  pictures of the mechanicals in the Bird.  Hope this helps you with your project!
 


1.5.2007  Top view of the Robart Air System installed in the belly - bomb bay area.  Being this model has no working wheel bay hatches, I decided not to have
a working bomb bay area, and utilized the space.

1.5.2007  Close view of the servo controlling the
air valve for the Robart Retract system.

1.5.2007  Side view of the air system.  Notice the left side, where the pressure gage and filler valve are mounted.  This view is from the rear of the plane, so filling the tank will be done behind the wing, away from the propellers!

1.5.2007  View of the nose gear.  The air hoses were routed through tubing
and secured to the top of the wheel well to keep them out of the way. 
This setup uses a pull-pull system.

1.5.2007  A closer look at the pull-pull system.  The cables  do not need to be tight when connecting them to the  Robart gear, just snug.

1.5.2007  Notice the tubing glued on each side of the wheel  well to run the pull-pull cables through.  The less cable you  have exposed, the less a chance it will tangle into the gear.

1.5.2007  One more shot of the pull-pull on the nose
 gear servo.  It's a standard Dubro 2-56 pull-pull kit

1.5.2007  Last shot of the nose.  I soldered the cables directly to the Robart Gear.  What I found is if I used loops and clamps, the cable could swivel and possible
 jam the gear.

3.21.2007  Here is the installation of the newer Robart Air tank, which really improved the performance of the retractable gear.

3.21.2007  rear view of the engine compartment. 
Along the right side you can see the throttle servo and
the mechanicals up to the carb on the engine.
 

3.21.2007  Here is a view of the front of the engine compartment.  Note the use of a nylon clevis to the carburetor to eliminate the possibility of metal-to-metal
noise distortion

3.21.2007  fuel line installation.  This setup uses a Thunder Tiger in-line refueling port.  Mounted to the outer firewall, and covered with the cowling, it's position allows for easy removal of the engine compartment for maintenance.

3.21.2007  Closer look at the fueling port.

5.30.2007 Aileron linkage installed.  4-40 rods, and ball joint. 
Dubro 105 control linkage.

5.30.2007 Standard Dubro 105 on left, modified version on right.
 








5.30.2007  Full view of aileron linkage. 










5.30.2007  Full view of flap linkage. 

On the updated plans, I have moved the flap
servo closer to the trailing edge of the wing,
to reduce the length of the push rod.

5.30.2007  A look a the underside of the elevators and the connectors.  Those are custom made control horns.  The modified plans call for using standard Dubro control horns.

As this was the proto-type model, I was doing some last minute modifications to make the tail
area detachable, and when it came time to fit the mechanicals, I found I was .25 inches off!


5.30.2007  A closer look at the custom made control horn.

5.30.2007  Rear view at the control horns for the tail assembly.

     

5.6.2008  An engine mount failure stopped engine testing while out at the Sky Ranch Flyers field.  This mount was from from flight one when
the plane crashed, and perhaps the fracture started at that time.  Repairs have been made.