Tailcone and conduit ventilation system with variable internal flow distribution

A tail cone ventilation system comprising:

• a tail cone case defining a tail cone interior and a tail cone exterior, the tail cone case having a forward portion and an aft portion separated axially along a tail cone axis;
• an air inlet fluidly coupled with the tail cone interior through ducting, the air inlet located externally from the tail cone interior;
• a conduit attached to the tail cone case at the tail cone exterior and to a pylon at an opposite end, the conduit comprising a cable chase having cable, the cable chase configured to receive cooling air to cool the cable, the cable being in operative communication with at least one electronic component within the tail cone interior;
• and
• a fan located within an internal flow passage extending from the tail cone interior to a pylon exhaust at a pylon trailing edge.

A tail cone ventilation system comprising:

• a gas turbine engine aft portion;
• a tail cone case attached to the gas turbine aft portion;
• the tail cone case defining a tail cone interior and a tail cone exterior, the tail cone having a forward portion and an aft portion separated axially along a tail cone axis;
• an air inlet fluidly coupled with the tail cone interior through ducting, the air inlet located externally from the tail cone interior;
• a conduit attached to the tail cone case at the tail cone exterior and to a pylon at an opposite end, the conduit comprising a cable chase having cable, the cable chase configured to receive cooling air to cool the cable, the cable being in operative communication with at least one electronic component within the tail cone interior;
• and
• a fan located within an internal flow passage extending from the tail cone interior to a pylon exhaust at a pylon trailing edge.