A possible very old glider conversion

The rudder wires are nylon fishing line and will not be "fixed" to the servo arms in the conventional sense but simple threaded through both holes in the arm and back to the rudder. The line ends will be tied (knotted) to the rudder horn in such a way to give an appropriate line tension.
This means the line is still free to move, mono filament line is very slippery, through the servo arm to allow the neutral position of the rudder to be set after the line ends have been attached. When the rudder position is satisfactory the line is secured with small blobs of UHU POR over each hole in the servo arm.

I know it all sounds pretty "Heath Robinson" but it is relatively simple to do and light!

not sure about using nylon tbh, it's stretchy and degrades in sunlight, just my thoughts of course.....

As you may have guessed I have used this technique before.
The fact that the nylon mono filament is stretchy is used to advantage as it enables a significant 'elastic' pretension to be applied which covers any geometric 'variations' over the full travel.
The other advantage I discovered by accident. The very flexibility of the nylon line means a 'hanger rash' hit on the control surface protects the servo gears.

The elevator on my Depron V-1 uses it. 910 mm from the servo right at the front to horn at the back. Built in 2013, never adjusted, the fuselage would have to be cut open for access, and still going.

Ah I see! very clever, spent ages saturday making mine up from wire, you've got me thinking now, I may scrap it and use braid but I will have to have some "adjustment".

I've been out of action for a while again so I've just caught up with the thread, you're doing a great job there Q.
I've managed to do a bit of modelling myself over the past few days, I'll start posting all my projects when I've read the rest of the threads and caught up with what everyone's been up to.

Pol.

Good to see you "back on" Phil!!

At last the rudder and tail plane can be tested.

Given the quality of the video you are hard put to see the rudder nylon line emerging from the fuselage just ahead of the fin.
Tissue, dope and paint the last open panels.
The complete the wings.

Nice work Q

Welcome back again Phil

The completed fuselage.

With an 1800 mAh 2s on board it weighs 263 g (9.25 oz)
My best guess at this stage is the complete plane will come in close to 420 g (14.8 oz) which is just a bit heavier than I intended.

looks great!

The first aileron attached to the painted wing tip.

Uses cloth 'two way hinges' as I used in the original.
The final bit of my OCD about weight.
Printed, hollow, forked end, servo links.

The aileron horn is printed as well.

The only metal are the hinge pins.
I had intended to paint the whole wing but it does add a bit of weight so only the tips will be yellow in contrast to the black ailerons. The rest on the wing will be just doped tissue.

Nearly finished but of course just as the weather starts to break!

Now complete and basking in the sun!

Would you believe when setting up the aileron throws I discovered I had set a horn one spine out! :ohmy:
By adjusting the servo travel it is still flyable but doing so makes a bit of a mess of the differential action.

Can be fairly easily fixed but it will require some tissue to be cut out and replaced!

OOPS! Do not pass GO - - - - - [badass]

Just got back from its first flight!
As I feared with an all flying tail plane it is almost impossibly sensitive in pitch or rather it is when compared to the rather feeble ailerons so full aileron and count to three before much happens but put just a tiny bit of unintentional fore or aft stick movement as the same time and its either a stall turn or a spiral dive! :woohoo:

Still mustn't grumble. It really does float about as you might expect from a free flight plane and I am sure it will be a bit better once I get that aileron servo horn on the right spline!