Project: Modified Carden Cap-232
Branwell McClory


My 1999 project is a 35% Carden Cap-232 modified to enhance its 3D ability's.

The end result.


Pilot "Fred"

1/3 Scale flier, Carden sell these, pre painted and ready to go.
They also sell the dashboard.

fredBSmall.jpg (3765 bytes)fredFSmall.jpg (3875 bytes)


Fuse bottom

I built the bottom of the plane open to lighten it a bit.
As you can see, I ran three 3/4" wide balsa stripes. One on either side and one 3/4 of the way down the fuse length to carry the bottom covering.
You can also see how the truss was continued to the landing gear plate.

FuseBottom1Small.jpg (3718 bytes)FuseBottom2Small.jpg (3963 bytes)FuseBottom3Small.jpg (4011 bytes)FuseBottom4Small.jpg (3883 bytes)


Fuse top

Through the fuse top, you can see the landing gear plate and the two C/F.
The landing gear plate is 1/4 ply instead of the 3/8 ply that comes with the kit.
The 1/4 ply was lightened with 11/4 holes but two 1/4 thick, end grain balsa carbon fiber laminates where placed where the bolts will go to reinforce it.
You can also see how the truss was continued to the LG plate, but continued in an "X" pattern.
Lightning in the light ply stress plate that runs from the firewall to the back of the canopy has also been lightened.

FuseTop1Small.jpg (4756 bytes)FuseTop2Small.jpg (4382 bytes)BottomTailSmall.jpg (7641 bytes)


Rudder and Elevator lightning

As can bee seen there, the tail moving surfaces have been modified and lightened.
The holes where drilled with a 1/2 drill bit.

The hinge line on the elevators was moved forward about 11/4".

The Rudder was extended at the hinge line 11/2" and about 1" at the trailing edge. There was also an air balance added to it.
What it interesting is that with full up deflection of the elevator, the elevator directs air into the fully deflected rudder airbalance. Should be interesting how this effects rudder authority.

RudderSmall.jpg (3710 bytes)RudderElevDef1Small.jpg (3630 bytes)RudderElevDef2Small.jpg (3540 bytes)RudderElevDef3Small.jpg (3363 bytes)


Rudder throw and Elevator servo hookup

As can bee seen, I like rudder authority.

In the third photo, if you look close to the elevator hinge line, you can see the Elevator servo hookup.
This was done to provide linear elevator throw, power, and also allow for more throw with out the linkages hitting the hinge wood.
Another nice benifit is that it is much lighter than a conventional 1/2 to 3/4 dowel and 8/32 bolt setup.

The connector at the surface is 1" back from the hinge line, directly centered.
It is made from a 2" piece of Darrol Cady hollow Carbon Fiber pushrod. These are the rods sized to accept a 440 threaded rod. The rod then has a 440 ball link screwed into one end, not forgetting the aluminum sleeve and the whole apparatus is inserted through the cap strip with only the ball link left protruding.
The rod is glued in place using Polly glue. This glue expands and forms a very strong anchor.
So far, the only tests I have don't on it are to turn the servo on, and then force it backward all the way. No problems.
The final pushrod between the servo and the ball link on the surface will be a Cady C/F rod.

Tail1Small.jpg (3318 bytes)Tail2Small.jpg (3441 bytes)Tail3Small.jpg (3556 bytes)


Rudder servo hook up point

In these photos, you can see the servo hook up point.
This is made up from a blank circuit board, imbedded in the surface and then pinned
with 440 sized hollow carbon fiber rods and Polly glue.
The reason for this type of hookup is to insure a solid connecting point for
the Multiplex servo that will control the rudder as it has almost 900 oz of holding power.
Lightning holes can be seen on the bottom of the rudder.

Servohookup1.jpg (61389 bytes)Servohookup2.jpg (48449 bytes)


As I get more photos, I will add to this page showing the mods to the fuse
and ailerons as well as setups and installations.