First step: Construction of the elevator. No difficulty, just classic. 
Another view and still as simple. 
The elevator’s flap is constructed in the same way. 
Once the glue is dry, sand it down to simulate the rounding of the tube used on the full size Piper. 
The rudder is built using the same method. 
The lower casings are installed on workbench with the rib’s caps. Then stick the spar. 
The ribs are then glued to the spar and to the bottom formwork. Then the upper spar is glued to the ribs. 15/10 balsa cores are added between each rib. It weighs nothing but strengthens considerably. 
Again, nothing difficult. Reinforcement side members and balsa sides 30/10. Some couples connect the sides … A classic box. 
The spars are kept in shape during bonding. 
No worries in sight to house the radio. There will be room … 
The cross is made before finishing the upper formwork of the fuselage. This makes it easier to install and adjust the wing keys. The latter consist of aluminum sheaths with an internal diameter of 10 mm. The keys themselves are made of aluminum tube with an internal diameter of 8 mm. This is more than enough because the shrouds are functional. 
The interior is painted in the final color, and the servos are installed. 
No difficulties for placing the order sheaths. There is also room and you can put your arm inside the fuselage. 
It remains to make the hood and install the engine. 
Without forgetting the dashboard.
Modèles réduits radio commandés, Avions, Planeurs