Saturday, March 21, 2020

Fuselage, Flap Actuation System (Part 2)

During the last session, I installed the two Flap Torque Arms and Flap Crank.  Today, I will prepare and install the ES 85615-10 Linear Actuator (Flap Motor).  The first step is to drill an angled “1/16” hole through the upper lip of the extension shaft and should exit outside the profile of the jam-nut, but within its outside diameter”.  All of those words look like this in the plans.....

So, here is my 1/16” hole drilled through the extension shaft as described above.  Now, the plans also contain the following NOTE:

“Avoid removal of the ES 85615-10 Linear Actuator jam-nut and rod end since the length of the assembly has been set at the factory”.

In the picture below, I kinda didn’t do that....well sorta!  I initially tried to drill the hole with the jam-nut undisturbed.  However, the drill bit would have drilled partially into the jam-nut (my angle was off ever so slightly).  So, I unscrewed the jam-nut, finished drilling the hole and returned the jam-nut to it’s position from Van’s.

Then, inserted the .025 safety wire into the hole that was just drilled.

While working with the Flap Motor, I saw “Van’s” engraved on the back.  Thought it was pretty cool.

The top of the Flap Motor is secured to the F-01446-L & -R Motor Brackets with an AN4-12 bolt and hardware.  Per the plans, wheel bearing grease was applied to the bolt.

The bottom of the Flap Motor (Extension Shaft) is secured to the WD-1023A Flap Crank with an AN3-12A and hardware.  Additionally, safety wire is routed through the hole drilled in the extension shaft and around the .259X.375X.168 Bushing.

Here is the installed Flap Motor.....BOOM!





Section Complete

I ended up removing the Van's flap actuator and installing a different one.  Please see 
Modifications & Upgrades for the installation of the PH Aviation Services RV Max Flap Actuator.