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