An exhaust apparatus for an aircraft, the aircraft having a fuselage, an engine exhaust with an outlet area disposed at a nose of the aircraft, and a sensor disposed at a location of the fuselage, to which, in operation, exhaust output from the engine exhaust is directed, the apparatus comprising: an inlet having a mouth configured to communicate with the engine exhaust, the mouth defining an intake area larger than the outlet area of the exhaust; a tubular extension having at least one tube (70a-b), having first and second ends, and being mountable at a plurality of support locations to the fuselage, the first end connected in communication to the inlet, the first end for receiving exhaust output from the engine exhaust along with intake air from the mouth, the second end configured to extend beyond the location of the sensor; a first support disposed at a first of the support locations on the at least one tube (70a-b), the first support having first, second, and third arms, the first arm configured to be pivotally connected between the fuselage and the at least one tube (70a-b) for supporting the same along a first axis, the second arm configured to be pivotally connected between the fuselage and the at least one tube (70a-b) for supporting the same along a second axis perpendicular to the first axis, the third arm configured to be pivotally connected between the fuselage and the at least one tube (70a-b) for supporting the same in one direction along a third axis perpendicular to the first and second axes; and a second support disposed at a second of the support locations on the at least one tube (70a-b), the second support having first, second, and third arms, the first arm configured to be pivotally connected between the fuselage and the at least one tube (70a-b) for supporting the same along the first axis, the second arm configured to be pivotally connected between the fuselage and the at least one tube (70a-b) for supporting the same along the second axis, the third arm configured to be pivotally connected between the fuselage and the at least one tube (70a-b) for supporting the same in an opposite direction along the third axis. an inlet having a mouth configured to communicate with the engine exhaust, the mouth defining an intake area larger than the outlet area of the exhaust; a tubular extension having at least one tube (70a-b), having first and second ends, and being mountable at a plurality of support locations to the fuselage, the first end connected in communication to the inlet, the first end for receiving exhaust output from the engine exhaust along with intake air from the mouth, the second end configured to extend beyond the location of the sensor; a first support disposed at a first of the support locations on the at least one tube (70a-b), the first support having first, second, and third arms, the first arm configured to be pivotally connected between the fuselage and the at least one tube (70a-b) for supporting the same along a first axis, the second arm configured to be pivotally connected between the fuselage and the at least one tube (70a-b) for supporting the same along a second axis perpendicular to the first axis, the third arm configured to be pivotally connected between the fuselage and the at least one tube (70a-b) for supporting the same in one direction along a third axis perpendicular to the first and second axes; and a second support disposed at a second of the support locations on the at least one tube (70a-b), the second support having first, second, and third arms, the first arm configured to be pivotally connected between the fuselage and the at least one tube (70a-b) for supporting the same along the first axis, the second arm configured to be pivotally connected between the fuselage and the at least one tube (70a-b) for supporting the same along the second axis, the third arm configured to be pivotally connected between the fuselage and the at least one tube (70a-b) for supporting the same in an opposite direction along the third axis.