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Date:  12-7-2023
Number of Hours:  8.00
Manual Reference:  
Brief Description:  Elevator bellcrank revisions

Starting to work through some integration issues. First, looking at where the rudder cables will pass by the bellcrank support, it was obvious that my support was a bit too tall and would interfere with smooth operation of the rudder cable. Checking my bellcrank support, it was a bit higher than the plans, I built new supports as shown in Image 1 that are a bit lower than the plans. They should still give the clearances needed for the bellcrank, but give much better rudder cable clearance. I will probably add anti-chaff edges to the support as well.
Finally, work began to define the geometry of the pitch autopilot servo. The servo will be located somewhere near the location shown in image 3. The outermost linkage location on the output arm will attach to a point about 2.1 inches lower than the main pivot. This should give the servo an approximate 64 degree output rotation (sum of positive and negative directions). A mounting plate has been designed and will locate the servo as shown in the drawings in image 2.
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Lower bellcrank mounts

Lower bellcrank mounts

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Servo geometry considerations

Servo geometry considerations

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Bracket with rudder cable mockup and servo

Bracket with rudder cable mockup and servo

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