The PRIMA is the ideal aileron-trainer, thanks to its simple and sturdy structure it can be built by modelers with very limited experience. When it comes to flying the PRIMA, we recommend an engine from .15 to .19 (2,5 to 3,5 cc) for basic training.
Switching from a .19 to a .23 (or even a .29) will then make the PRIMA fully acrobatic. This kit contains all the die-cut balsa and plywood parts, a full-size drawing showing both wing-halves, nose- and main landing-gears, all necessary control- horns, nylon hinges and nylon wing mounting screws, assembly instructions, etc.

 

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