RE: L39/Wren 44 Pics and video
As Dave said, just order rudder it comes fitted as shown, fantastic hinge, well made, wheels are about 2.5inch if i remember
On the pics you can see the engine bay of the 'better' L39 note all carbon fibre.
Pic of rudder and servo.
I have also included the engine mount drawings everyone keeps asking for, works perfectly with Wren 44. Set up as shown and you will get the correct thrust line as well. My friend Joe did an original version, this is the refined one. Hope it helps you all.
P