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ARF Reviews
Extreme Composite Edge 540T 50CC Dietrich Performance75CC Extra260
product Reviews Smart-Fly Competition 12 Turbo
Instruction Manuals
The Ladies Justina and Dietrich 42% Extra 260
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Pilot 100CC YAK Fast Build CF Version
Build Review by Rockin' Rick Part 4
I'll move on to the rudder servo installations now. All the parts have been gathered up and if you use the supplied offset servo arms, you'll need to employ the round disk servo arms that are usually supplied with your servos. Hitec Servos provides a large disk servo arm that is perfect for this application. I normally don't advise using the manufacturer supplied servo arms, but since these are already swept back for proper geometry in the cable installation, I'll give these a try this time. Drill out the round disk servo arms for the supplied 2-56 bolts and secure the top and bottom bolts now. Use blue locktite on the threads. Now here's the tricky part. Pilot-RC neglected to pre-drill the locations for the servo tandem ball linkages on the supplied servo arms. Strike Two. You'll have to drill these holes yourself and they must be in alignment with the axis of the servo spindle shaft as shown in the top right picture. Additionally, you'll need to trim off the ends of the most forward servo arm in order to avoid interference with the aft servo arm when it is moved to its most extreme positions. Drill out these holes, insert the remaining 2-56 bolts and nuts in the servo arms, mount the rudder servos, and then mount your completed servo arms with the tandem ball link connectors adjusted and in place. Rudder and tailwheel construction is next on my list so let's get to it. Remove the UltraCote covering on both sides of the lower rudder at the slots provided for the control horns. I find this very easy do do with a soldering iron. Locate the rudder control horns and slide them through the slotted openings at the bottom of the rudder. Slide the control horns as far forward as possible and place the retainers over the control horns. Trace around the control horns and remove the retainer. Then carefully cut out and remove the UltraCote to expose the bare wood. This will provide a better surface for the glue to adhere to. Remove the control horns and generously apply 30 minute epoxy to the control horns and the insides of the slots. Reinsert the control horns and the retainers on both sides, slide forward and set aside to dry. Be sure to clean up any excess epoxy before it dries. Set aside to dry N.B. When installing control horns on the wings use this same method to secure the control horns.
Place the CF tailwheel assembly on the rear of the fuse and mark out the locations for the screws. Drill out the holes. Remove the small access door on the right side of the fuse and using the bolts, pull up the blind nuts to flush inside the fuse. I put a small dab of 5 min epoxy on the flats of the blind nuts to hold them in place. I really think that this step should have been performed for you at the factory. When dried, attach the rudder to the fuselage using the supplied rod and washer and collar. I found that the rod is too long and will interfere with the CF tailwheel bracket. It needs to be shortened by inletting it into the end of the fuse and bottom of the rudder. Then, install the tailwheel assembly.
You know, its nice that this kit was sent with a CF tailwheel included. I really like that but the engineering of this assembly leaves quite a bit to be desired. Here's how I set up my tailwheel steering assembly. Due to the location of the tailwheel mounting reinforced area, it had to be installed on the fuse in this area. I bent the steering rod down and inserted it through the steering pivot close to the bottom of the rudder. Make sure that all of the small socket head screws in the entire assembly are secured with blue locktite before you leave this installation. Vibration will surely loosen them and they will fall out unexpectedly. Glue the steering pivot in with some epoxy. I would have really much preferred to see a "Lateral Steering Arm" CF unit for this assembly. In the long run, I think that this one's going to be trouble down the road. For this type of Tail wheel assembly, Pilot RC should have placed the reinforced mounting section further forward on the fuselage so that the pivot could be centered on the rudder axis. Strike Three See example below of a typical CF Tailwheel with lateral steering arm.
Update-3-11-09- As predicted, the supplied tailwheel became a real nuisance after flying the plane for a few flights. It was cumbersome and the sliding rod caused the rudder movement to hang up while in flight. It has since been replaced with Ohio Superstar Products, Inc. leaf type tailwheel for 16-35lb. planes. This one works great!!
Secure the rudder hardware access door and connect the control cables to the rudder horn.
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