The display is constantly updated and can be mounted wherever you prefer.

Display installation – see Photo 1

The display can be installed anywhere on your helicopter, but it’s best to keep it away from heat, vibration and exhaust. On the Raptor 30/50 series we find that pilots like to have it fitted on the gyro platform, looking towards the tail rotor. A bracket with sticky pads is provided for this type of installation.

The plug on the longer cable should be connected to a spare socket on the receiver. Use an extension lead or a ‘Y’ lead if your receiver is too far away or if you don’t have a spare socket.

The socket on the short cable should be connected to the plug on the sensor cable. Again, you can use an extension if necessary. Please check that the cables are secure and away from heat or oil.

Sensor installation – see Photo 2

The sensor is provided with a 90º adjustable bracket for easy fitting to the Thunder Tiger Raptor 30/50 series, it can be fitted to other helicopters but extra parts may be required.

On the Raptors the bracket fixes with the M3 bolt provided to the spare hole above the fuel tank on the exhaust side.

The sensor needs to see the white reflective area on the piece of strip metal provided. Remove the M3 nyloc nut on the bottom end of the mainshaft and re-fit it over the metal strip, then adjust the strip with gentle bending so that as the mainshaft rotates, the sensor is 0.5-1mm from the reflector.

Operation

When the receiver is switched on the display indicates ‘ic’ for a few seconds, then blanks before displaying ‘0’ rpm. As you prepare to take off into a hover, the display indicates ‘_’ up to 500 rpm, then ‘5’ for 500 rpm, ‘10’ for 1000 rpm, up to ‘19’ for 1900 rpm.