A view of the modified control horn assemblies and the
Rod End
Bearing Hinges as designed by Dr. Dean Collette. These are far superior to the Rand
Robinson design as shown in the plans. These hinges operate as smooth as
glass and the ease of installation alone makes
them worthwhile. To view the drawings and bill of material for
the rod end bearings and control horns simply
click here.
The cockpit carpet has been installed as well as the
Rand
Robinson rudder pedals with nylon bearing blocks. Matco hydraulic toe brakes are also in place.
The rudder cables are installed and notice the
cable pulley and bracket on either side of the inside
fuselage sides. The control stick is made 3/4" 6061-T6 tube
with a Teakwood grip and push to talk
button.
This photo shows the aileron cable routing and system set up to work with the AS5046 airfoil. The stock Rand
Robinson aileron belcrank will not fit inside the AS504X airfoil behind the aft spar. You must move it to the front side of the aft
spar.
This design of aileron cable routing is for the RAF48
airfoil. This is what I had prior to changong
to the new AS5046 airfoil. Note how I have routed the cable around the Diehl gear brackets. This set up has been completely removed and improved as you will see in
the next photo.
The modified aileron belcrank assembly was relocated
to the forward side of the aft spar. This will
give you much more room between the top and bottom skins of
the RAF48 airfoil and is essential if you are using the AS504X airfoil. The aileron pushrod will pass through the space between the inboard and outboard aft spar
provided by the wing attach fittings. The
aileron cross cable is now directly under your butt so make sure
there is enough clearance under your
seat.
This is my elevator
counterbalance. This design is very similar to Mark Langford's. With Mark
Langford's excellent
web site, I was able to build this set up. It is a very efficient arrangemant which is totally enclosed
in the fuselage. A lead weight will be added to
the end of the square tubing as the
counterbalance.
This is a close up of the aileron belcrank arrangement
I am using on the AS5046
airfoil. Mounting on the forward side of the aft spar is essential due to the
thinner trailing edge on the AS5046
airfoil. This is basically a reversed version of the stock belcrank as
depicted on the Rand
Robinson KR-2S plans.
This is a good view of my right main gear of the Diehl Tri
Gear I am using. The hydraulic brake system is Matco. The axle is 5/8" pre welded kit offered by Great
Plains Aircraft.
Here is the control stick and cable assembly. The aileron
attach bracket on the bottom of the control stick also pivots. This
set up is a little beefier than what the plans call
for.
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