Detailed specification continued:
CYMODEL creates detailed and nice user or instruction manuals for their rc model airplanes. Also a detailed building or instruction manual for the YAK 3U from CYMODEL is available.
See YAK 3U Instruction Manual
1. High-quality, prepainted, fiberglass fuselage and cowling;
2. High-quality balsa and plywood material;
3. Light weight and strong construction;
4. Functional scale flaps;
Internal diameter is ~25.5cm