Fly by wire is a semi-automatic and/or computer-regulated system for controlling the flight of an aircraft. This different to the old aircraft that had pullies and cables attached to the controls and this made it physically demanding for pilots. The use of computer aided motors and hydralics make it easier and allows many of the control functions to have preset automotive capacity i.e using the autopilot is not much easier when used with a FMS (Flight Management System)
The purpose of the RH wire on a thermostat is to provide power to the heating system.
NASA used an F-8C for its Digital Fly-by-Wire Program-the first digital fly-by-wire aircraft to operate without a mechanical backup system.
The purpose of the RH wire in a thermostat is to connect to the heating system in order to control the heating function of the HVAC system.
The purpose of the blue wire in a thermostat is to connect the thermostat to the air conditioning system.
The purpose of the RC wire on a thermostat is to provide power to the cooling system of the HVAC (heating, ventilation, and air conditioning) system.
The purpose of the brown wire in a thermostat is to connect the thermostat to the heating system, typically used for controlling the heating function of the system.
The purpose of the thermostat R wire in a heating and cooling system is to provide power to the thermostat, allowing it to control the heating and cooling equipment in the system.
The purpose of the orange wire on a thermostat is to connect the thermostat to the heat pump, allowing it to control the heating system.
The main (and most important) limitation to Fly-by-wire system is that is highly sensible to EMPs, since this one fries the hole system and the plane would unavoidably crash
The purpose of the thermostat OB wire in a heating and cooling system is to control the reversing valve in a heat pump system, which changes the system from heating to cooling mode or vice versa.
The purpose of the blue wire on a thermostat is to connect the thermostat to the air conditioning system for controlling and regulating the cooling function.
The purpose of the orange wire in a thermostat is to connect to the heat pump, allowing the thermostat to control the heating function of the system.