Heating architecture for a composite fairing

A composite fairing with ice protection having a plurality of plies comprising:

• a first heating element configured to heat a downstream zone upon application of an electric current across the first heating element;
• a second heating element configured to heat a first upstream zone upon application of an electric current across the second heating element;
• a third heating element configured to heat a second upstream zone upon application of an electric current across the third heating element;
• a plurality of junctions connecting a socket to a plurality of first busbars, wherein the junctions and first busbars are configured to conduct electricity to the first heating element and to plated through holes;
• first and second plated through holes extending through all composite fairing plies, wherein the first plated through hole is configured to conduct electric current to a second busbar and the second plated through hole is configured to conduct electric current to a third busbar;
• a second busbar connecting the first plated through hole to the second heating element, wherein the second busbar is configured to conduct electric current to the second heating element;
• and
• a third busbar connecting the second plated through hole to the third heating element, wherein the third busbar is configured to conduct electric current to the third heating element.

A composite fairing with ice protection having a plurality of plies comprising:

• a first ply having an inner surface comprising:
• a first heating element configured to heat a first zone upon application of an electric current across the first heating element;
• a plurality of junctions connecting a socket to a plurality of first busbars, wherein the junctions and first busbars are configured to conduct electric current to the first heating element and to a plated through hole;
• a plated through hole, wherein the plated through hole is configured to conduct electric current to other plies of the fairing;
• and
• a second ply having an inner surface comprising:
• a second heating element configured to heat a second zone upon application of an electric current across the second heating element;
• the plated through hole of the first ply, wherein the plated through hole is configured to conduct electric current;
• and
• a second busbar connecting the plated through hole to the second heating element, wherein the second busbar is configured to conduct electric current to the second heating element.

A method of making a composite fairing with embedded heating elements and having ice protection, the method comprising:

• depositing a first heating element configured to heat a first zone onto an inner surface of a first fairing ply;
• providing a plurality of junctions on an inner surface of the first fairing ply connecting a socket to a plurality of first busbars,
• providing a plurality of first busbars, wherein the junctions and first busbars are configured to conduct electric current to the first heating element and to a plated through hole area;
• depositing a second heating element configured to heat a second zone onto an inner surface of a second fairing ply;
• providing a second busbar on the inner surface of the second ply connecting the plated through hole area to the second heating element for conducting electric current to the second heating element;
• shaping the first and second fairing plies and additional fairing plies of the composite fairing;
• co-molding adjacent plies to form the composite fairing;
• drilling at least one through hole in the plated through hole area extending through the composite fairing;
• electro-plating the at least one through hole to form a plated through hole configured to conduct electric current to all fairing plies of the composite fairing.