Abstract: The invention is directed to a deployment apparatus for an extendable ram air turbine of an aircraft. The ram air turbine is movable from a stowed inoperable position within the aircraft to a deployed and extended operable position externally of and in an airstream of the aircraft. The deployment apparatus includes an ejection member secured at one end to the aircraft and pivotally coupled to a non-extendable portion of a strut assembly. The non-extendable strut portion is pivotally secured at one end to the aircraft and receives at its other end in a telescoping manner one end of an extendable strut portion which has at its other end an air turbine driven power unit.