installation of certain, approved structural modifications to the wing spar and other repairs, the T-34A and T-34B fleet in 2011 has been restored to full flight status by FAA at the Mentor's originally designed limitations, provided each individual example is compliant with those ADs and AMOCs. The Mentor is the aircraft used by the Lima Lima Flight Team and Dragon Flight, both civilian demonstration teams. It was also used by aerobatic pilot Julie Clark, who flew her T-34 "Free Spirit" (registration N134JC) at air shows. Variants YT-34 Prototype, three built. T-34A US Air Force trainer. Replaced by the Cessna T-37 around 1960 (450 built). T-34B US Navy trainer. Used as a trainer until 1976, when VT-1 and VT-5 were decommissioned. It was replaced by the T-34C (423 built by Beechcraft). T-34Bs were flown by pilots assigned to the Navy Recruiting Command until the mid-1990s. YT-34C Two T-34Bs were fitted with turboprop engines, and were used as T-34C prototypes. T-34C Turbo-Mentor Two-seat primary trainer, fitted with a turboprop engine. T-34C-1 Equipped with hardpoints for training or light attack, able to carry of weapons on four underwing pylons. The armament could include flares, incendiary bombs, rocket or gun pods and antitank missiles. Widely exported. Turbo-Mentor 34C Civilian version Allison Turbine Mentor Conversion of surplus T-34 Mentors to be powered by Allison Model 250 turboprop engines. Model 73 Jet MentorPowered by a Continental J69-T-9 turbojet engine. The sole aircraft first flew on 18 December 1955. Operators Military operators Argentine Air Force - Received 15 T-34B from Beechcraft, and 75 built under licence in Argentina by Fabrica Militar de Aviones (FMA). Argentine Naval Aviation – 15 T-34C-1 in 1978. Bolivian Air Force – Received 11 T-34A and Bs from Uruguay in 2000. RCAF Cpurses 5409 and 5411, RCAF Station, Penhold, Alberta Royal Canadian Air Force - 25 T-34A built in Canada by Canadian Car and Foundry evaluated from 1954 to 1956 with RCAF Courses 5409 and 5411, RCAF Station Penhold, Alberta, until donated to other air forces. Chilean Air Force Chilean Navy Colombian Air Force – Purchased 50 T-34s in 1954, with six more acquired in 1970 and 10 in 1977. The final T-34 was retired in December 2013. Ecuadorian Air Force Ecuadorian Navy Indonesian Air Force Japan Air Self-Defense Force Japan Ground Self-Defense Force Royal Moroccan Air Force Peruvian Naval Aviation Philippine Air Force Royal Saudi Air Force Republic of China Air Force