Today I was able to run a full 'bench' test of Binky [I ran a basic test on friday but I couldn't go to full throttle as the top was not on] and there is one serious problem.

Once the ESC was armed, the moment I moved more than about 3 meters away the disc went straight to full throttle. Thankfully the machine was clamped to a metal plate so it wasn't going anywhere but the only way to stop it was to get within a meter and regain the signal; and then pull the link when the disc had slowed down to a speed that didn't make it sound like a jet engine.

This didn't happen the first test even when I was a full 8-10 meters away. I think it was the armour blocking the signal as it was fine in the other test.

We are using a Spektrum DX6i and an Orange receiver, neither of which seem to be fail safeing properly.

Does anyone have any suggestions on how to solve this?