I have a JetsMunt Merlin 100XBL which I want to swap between two different airframes. At first I assumed it would be best to get another ECU and fuel pump so that all I would have to do was undo 4 bolts, one fuel line (via Festo) and one electrical connection to take the turbine out. I contacted JetsMunt, however, and was advised to use the same ECU and pump for various technical reasons. I have just finished building a Jet Legend Viper and have therefore designed the installation to allow quick swapping of the turbine, ECU and fuel pump. As you can see from the picture below, the ECU, system analyser and pump are mounted on a removable tray. After undoing the two retaining screws there are 3 connections to the ECU and two Festo connectors to undo before the tray can be lifted out. I estimate it should take barely more than 5 minutes to swap everything from this model to another. I don't have the second model ready yet so time will tell!