Today was finally the maiden flight of my Fly Model Extra 330SC 91" 50cc electric powered.
This is my first experience with a 50cc size plane and I felt a huge difference from my 30cc birds. Plane flies wonderfully, almost no coupling during KE flight (just a little aileron mixing required but minimal).
Power system is working good but the Rotomax 50cc is getting too hot for my liking (even after rewind), ESC remains cold. Propping down is not an option as the thrust: weight ratio is already at the bottom of my preferred range so I may try to do some baffling to force airflow specifically over the motor.
We are approaching the hot season here so we can reach close 40°C (104F) at noon.

I had to stop on the 3rd flight as the foam tail wheel ripped during a normal landing. I have just replaced it with a rubber wheel from a spare tail gear I had at home.
Ronaldo

Full setup:

• Turnigy Rotomax 50cc rewound to 198kV
• Castle Creations Phoenix Edge 160A HV ESC
• Aerostar 23x10 wood electric propeller
• 12S 5000mAh 70c (CHL G+ Graphene series)
• YEP 20A SBEC (all servos running on 8V)
• Scorpion RX Backup Guard
• (5) JX PDI-HV7246MG 46KG Metal Gear High Voltage Digital Coreless Standard Servo

Maiden flight

Fly Model Extra 330SC 50cc Electric Powered - maiden flight (5 min 34 sec)

3rd flight (checking KE coupling mixing results)

Fly Model Extra 330SC 50cc Electric Powered - 3rd flight (5 min 45 sec)

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