Cornelius C-400

Dear RC enthusiasts,

There are several Reviews of the Cornelius C400 out there, but none on FilteTest. As I am a beginner and the C400 is my second model I wanted to share my experiences with you all, who like an affordable nice scale plane.

*As I am not an native english speaking person I apologies for misspellings in advance.

The Cornelius C-400 is made prom EPO foam and quit durable, as I lands hard several time, I know it for sure ;-)

The functions for the model are:

• Elevator
• Rudder
• Ailerons
• Flaps
• Motor
• LED Lighting

The default out of the box setup is:

• Scale: 1:7.5
• Wingspan: 1450 mm
• Length: 990 mm
• Weight: 990 g
• Material: EPO
• Servos: 4 pcs
• Drive: brushless motor (outrunner)
• Controller: HOBBYWING SkyWalker 20A

The first flights did work out quite well, but as mentioned I had a hard landing and thought of some improvements. The first thing was the broken front wheel steering, which also destroyed one gear in the servo. So I replaced the servo with a metal gear model. The D05010MG I bought at Hobbyking is working fine. Another extra I was looking for was to make the led lighting switchable. As I now had a broken servo I used the control board of the servo to build a remote switch. The only parts needed were the servo control board and two resistors 220Ohm. (There are many tutorials out on the web how to do this. Takes only 15-20 minutes if you do this nicely.)

Until here flying was already fun. But with other project in parallel I had some spare parts and decided to upgrade the C-400 to be able to do more 3d flying. -> I needed more Power.
I took a spare Turnigy D2836/8 110kV motor form my hex copter project and placed it the plane. Do be able to do so I had to modify the motor mount. I used a dremel to make the motor mount not block the fixation of the motor hud. With the motor I switches to a 9x4.7 airscrew. And not to forget I replaced the 20A speed controller with a 40 A version. The max. current of the motor is 18A, but I wanted to keep the controller cold when going hard and the 20A solution did not satisfy me.

So far I am happy with the setup.

The next Setps will be to get a Park 4801320kV with a 0906E airscrew running. The modification of the motor mount will be the main challenge. I might have to create a whole new firewall.

Hope you enjoy my article.

Other project:
Hex Copter (custom build – not happy yet)
SkyStream (box version, very nice)
Red Eagle one-wing (custom build – mainden flight today!)