The Lockheed T-33 Shooting Star (or T-Bird) is an American subsonic jet trainer. It was produced by Lockheed and made its first flight in 1948. The T-33 was developed from the Lockheed P-80/F-80 starting as TP-80C/TF-80C in development, then designated T-33A. It was used by the U.S. Navy initially as TO-2, then TV-2, and after 1962, T-33B. The last operator of the T-33, the Bolivian Air Force, retired the type in July 2017, after 44 years of service.[1]

T-33 Shooting Star
A demonstration T-33 in flight in 2016
General information
TypeTraining aircraft
ManufacturerLockheed
Designer
Primary usersUnited States Air Force
Number built6,557
History
Manufactured1948–1959
First flight22 March 1948
Retired31 July 2017 (Bolivian Air Force)
Developed fromLockheed P-80 Shooting Star
VariantsLockheed T2V SeaStar
Canadair T-33AN/CT-133 Silver Star
Developed intoLockheed F-94 Starfire
Boeing Skyfox

Design and development

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The T-33 was developed from the Lockheed P-80/F-80 by lengthening the fuselage by slightly more than 3 feet (1 m) and adding a second seat, instrumentation, and flight controls. It was initially designated as a variant of the P-80/F-80, the TP-80C/TF-80C.[2]

Design work on the Lockheed P-80 began in 1943, with the first flight on 8 January 1944. Following on the Bell P-59, the P-80 became the first jet fighter to enter full squadron service in the United States Army Air Forces. As more advanced jets entered service, the F-80 took on another role—training jet pilots. The two-place T-33 jet was designed for training pilots already qualified to fly propeller-driven aircraft.

Originally designated the TF-80C, the T-33 made its first flight on 22 March 1948 with Lockheed test pilot Tony LeVier at the controls. Production at Lockheed ran from 1948 to 1959. The US Navy used the T-33 as a land-based trainer starting in 1949. It was designated the TV-2, but was redesignated the T-33B in 1962. The Navy operated some ex-USAF P-80Cs as the TO-1, changed to the TV-1 about a year later. A carrier-capable version of the P-80/T-33 family was subsequently developed by Lockheed, eventually leading to the late 1950s to 1970s T2V-1/T-1A SeaStar. The two TF-80C prototypes were modified as prototypes for an all-weather two-seater fighter variant, which became the F-94 Starfire. A total of 6,557 T-33s were produced: 5,691 of them by Lockheed, 210 by Kawasaki, and 656 by Canadair.

Operational history

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U.S. Air Force and U.S. Navy

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The two-place T-33 proved suitable as an advanced trainer, and it has been used for such tasks as drone director and target towing. A reconnaissance version known as the RT-33A with a camera installed in the nose and additional equipment in the rear cockpit was also produced. Although primarily intended for export, the U.S. Air Force used a single example of the type for secret overflights of South Vietnam and Laos from 1961, with these flights codenamed FIELD GOAL. This lasted until the aircraft were replaced by the more capable McDonnell RF-101 Voodoo in this role.[3]

The USAF began phasing the T-33 out of front-line pilot training duties in the Air Training Command in the early 1960s, as the Cessna T-37 Tweet and Northrop T-38 Talon aircraft began replacing it for the Undergraduate Pilot Training (UPT) program. The T-33 was used to train cadets from the Air Force Academy at Peterson Field (now Peterson Air Force Base in Colorado Springs). The T-37 replaced the T-33 for Academy training in 1975. The final T-33 used in advanced training was replaced 8 February 1967 at Craig AFB, Alabama.[4] Similar replacement also occurred in the U.S. Navy with the TV-1 (also renamed T-33 in 1962), as more advanced aircraft such as the North American T-2 Buckeye and Douglas TA-4 Skyhawk II came on line. USAF and USN versions of the T-33 soldiered on into the 1970s and 1980s with USAF and USN as utility aircraft and proficiency trainers, with some of the former USN aircraft being expended as full-scale aerial targets for air-to-air missile tests from naval aircraft and surface-to-air missile tests from naval vessels.

Several T-33s were assigned to USAF McDonnell F-101 Voodoo, Convair F-102 Delta Dagger, and Convair F-106 Delta Dart units, to include similarly equipped Air National Guard units, of the Aerospace Defense Command as proficiency trainers and practice "bogey" aircraft. Others later went to Tactical Air Command, and TAC gained Air National Guard F-106 and McDonnell-Douglas F-4 Phantom II units in a similar role until they were finally retired, with the last being an NT-33 variant retired in April 1997.

Military use by other nations

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The T-33 has served with over 30 nations and continues to operate as a trainer in smaller air forces. Canadair built 656 T-33s on licence for service in the RCAF—Canadian Forces as the CT-133 Silver Star, while Kawasaki manufactured 210 in Japan. Other operators included Brazil, Turkey, and Thailand, which used the T-33 extensively.

Some T-33s retained two machine guns for gunnery training, and in some countries, the T-33 was even used in combat: the Cuban Air Force used them during the Bay of Pigs Invasion, scoring several kills including sinking two transport ships.

The RT-33A version, reconnaissance aircraft produced primarily for use by foreign countries, had a camera installed in the nose and additional equipment in the rear cockpit. T-33s continued to fly as currency trainers, drone towing, combat and tactical simulation training, "hack" aircraft, electronic countermeasures, and warfare training and test platforms right into the 1980s.

 
United States Air Force Lockheed RT-33 reconnaissance plane forced down by Albanian MiG-15 in December 1957, on display in Gjirokastër, Albania
 
USAF Lockheed NT-33A

In the 1980s, an attempt was made to modify and modernize the T-33 as the Boeing Skyfox, but a lack of orders led to the project's cancellation. About 70% of the T-33's airframe was retained in the Skyfox, but it was powered by two Garrett AiResearch TFE731-3A turbofan engines.

In the late 1990s, 18 T-33 Mk-III and T-33 SF-SC from the Bolivian Air Force went to Canada to be modernized at Kelowna Flightcraft. New avionics were installed, and detailed inspection and renewal of the fuselage and wings were performed. Most of the aircraft returned in early 2001 and remained operational until the type was officially retired on 31 July 2017.[5]

On 21 June 1996, 1 T-33A-5-LO (trainer TR-602) from the Hellenic Air Force piloted by Squadron Leader Ioannis Kouratzoglou successfully intercepted a Turkish F-16C violating Athens FIR by engaging in low-altitude high-G maneuvers.[6]

Civilian use

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A limited number of T-33s have been owned privately, with two used by Boeing as chase aircraft. In 2010, one T-33 owned by Boeing was used as a chase aircraft during the maiden flight of the Boeing 787.[7] The maiden flight of the Boeing 737 MAX-7 on 16 March 2018 also featured a T-33 chase plane.[8] The maiden flight of the Boeing 777-9 on January 25, 2020, also featured a T-33 chase plane, taking off from KBFI and meeting the 777-9 at KPAE, it stopped at KMWH and it took off again to chase the 777-9 on its way back to KBFI, flying around Mount Rainier before their landing.[9] On December 4, 2020, Boeing retired their T-33 Chase Planes after 66 years of service.[10] Both T-33s operated by Boeing were replaced by a single T-38 Talon.[11] Actor and pilot Michael Dorn owned a T-33, which he jokingly referred to as his "starship".[12]

Variants

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TP-80C
Original United States military designation for the Lockheed Model 580 two-seat trainer for the United States Army Air Forces. Designation changed to TF-80C on 11 June 1948 following establishment of the United States Air Force as a separate military service in 1947, and then to T-33A on 5 May 1949; 20 built.
T-33A
Two-seat jet trainer aircraft for the United States Air Force and delivery to foreign air forces under the Military Assistance Program, 5871 including 699 diverted to the United States Navy as the TV-2.
AT-33A
Conversions of the T-33A for export as a close support variant fitted with underwing pylons and hard points for bombs and rockets. Also used in the original fighter lead-in program at Cannon AFB, NM approximately 1972-1975.
DT-33A
This designation was given to a number of T-33As converted into drone directors.
NT-33A
This designation was given to a number of T-33As converted into special test aircraft.
QT-33A
This designation was given to number of T-33As converted into aerial target drones for the United States Navy.
RT-33A
T-33A modified before delivery as a single-seat reconnaissance variant; 85 built, mainly for export under the Military Assistance Program.
T-33B
Re-designation of the United States Navy TV-2 in 1962.
DT-33B
Re-designation of the United States Navy TV-2D drone director in 1962.
DT-33C
Re-designation of the United States Navy TV-2KD target in 1962
TO-1/TV-1
U.S. Navy designation of P-80C, 50 transferred to USN in 1949 as jet trainers (not technically T-33 Shooting Star)
TO-2
United States Navy designation for 649 T-33As diverted from USAF production. Two-seat land-based jet training aircraft for the U.S. Navy. First 28 were delivered as TO-2s before the Navy changed the designation to TV-2. Surviving United States Navy and United States Marine Corps aircraft were re-designated T-33B on 18 September 1962.[13]
TV-2
Re-designation of the TO-2 after the first 28 were built.
TV-2D
TV-2s modified as drone directors, later re-designated DT-33B.
TV-2KD
TV-2s modified as radio-controlled targets, could be flown as a single-seater for ferry, later re-designated DT-33C.

Canada

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Silver Star Mk 1
Canadian designation for the T-33A, 20 delivered.
Silver Star Mk 2
Canadian designation for a T-33A which became the prototype of the Silver Star Mk 3.
T-33AN/CT-133 Silver Star Mk 3
The T-33AN is a Rolls-Royce Nene-powered variant of the T-33A for the Royal Canadian Air Force; 656 built by Canadair with the company designation CL-30. The Canadian military designation was later changed from T-33AN to CT-133.

Other

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L-245
One Lockheed-owned prototype with a more powerful engine. Was later developed into the T2V SeaStar.[14]
Aérospatiale Pégase
A Canadair T-33AN was modified by Aérospatiale with an S17a 17% thickness wing section.[15]
Boeing Skyfox
A comprehensive upgrade and re-engine project, powered by 2 Garrett TFE-731 turbofans. The sole prototype remains parked, without engines, at Rogue Valley International (MFR) at Medford, Oregon.

Khodkar

Iranian conversion of T-33A into drone.[16]

Former operators

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T-33 of the Belgian Air Force
 
T-33 of the Taiwan Air Force at Hsinchu Air Base 2012.
 
A T-33 Shooting Star of the Hellenic Air Force
 
T-33A of the Mexican Air Force
 
T-33A of the Peruvian Air Force
 
T-33 Portuguese Air Force
 
T-33 of the Republic of Korea Air Force
 
T-33 of the Spanish Air Force
 
T-33 of the Philippine Air Force
 
Indonesian Air Force T-33A
 
T-33 belonging to the former Imperial Iranian Air Force (IIAF)
 
T-33 in Saudi Arabia
 
T-33A of the Japan Air Self-Defense Force

For operators of Canadian-built aircraft, refer to Canadair CT-133 Silver Star.

  Bangladesh
  Belgium
  Bolivia
  • Bolivian Air Force - Bolivia acquired 15 T-33AN from Canada in 1973–74, purchasing 5 more from Canada in 1977 and 18 T-33SFs from France in 1985.[17] 18 were upgraded to T-33-2000 standard in 2000–2001.[18] Retired in 2017.[19]
  Brazil
  Burma
  Canada
  Chile
  Republic of China
  Colombia
  Cuba
  Denmark
  Dominican Republic
  Ethiopia
  Ecuador
  El Salvador
  France
  Germany
  Greece
  Guatemala
  Honduras
  Indonesia
  Iran
  Italy
  Japan (all retired)
  Libya
  Mexico
 
T-33 of the Uruguayan Air Force
  Netherlands
  Nicaragua
  • Nicaraguan Air Force FAN received delivery of four AT-33A aircraft from the US Government after the failed Bay of Pigs invasion in 1961. Retired from service in 1979.
  Norway
  Pakistan
  Paraguay
  • Paraguayan Air Force operated six AT-33A donated by Taiwan in 1990. The belonged to the Grupo Aerotáctico (GAT) 2nd. Fighter Squadron called "Indios". They were withdrawn from use in 1998.
  Peru
  • Peruvian Air Force operated a total of 27 T-33A delivered between 1955 and 1964, all of them formerly operated by the United States Air Force. They were withdrawn from use in 1981 after being replaced by the Aermacchi MB-339. A single T-33A-1-LO, serial 455 (c/n 580-9889) is preserved at Parque del Aire.
  Philippines
  Portugal
  Saudi Arabia
  Singapore
  South Korea
  Spain
  Thailand
  Turkey
  United States
  Uruguay
  Yugoslavia

Aircraft on display

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Numerous T-33s have been preserved as museum and commemorative displays.

Notable accidents and incidents

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On January 28, 1951: WW2 Ace Dominic Salvatore Gentile was killed when he crashed in a T-33A-1-LO Shooting Star trainer, AF Ser. No. 49-0905, in Forestville, Maryland. Gentile was credited with 20 air kills during his combat tours.

4 August 1955
First Lt. Elmer C. Bybee (of Walden CO) and Second Lt. Conrad J. Zubalik (of Greensburg PA), US Air Force, were flying a T-33 on a training sortie out of Perrin Air Force Base (Sherman TX) when a wing snapped off during a turn. The aircraft crashed near Grapevine Lake Dam north of the Dallas-Ft Worth Airport. Both pilot trainees perished in the crash.[32][better source needed]
4 June 1957
Maj. Teruhiko Kobayashi, a flying ace of the Imperial Japanese Air Force, was flying a T-33 on a training sortie from Hamamatsu when a technical problem occurred just shortly after takeoff. He ordered his companion in the jet with him to eject. After his companion did, he tried to take control of the aircraft and attempted to land it away from any populated areas, but crashed shortly after.[citation needed]
23 December 1957
1 US T-33 flown by Maj Howard J.Curran entered Albanian airspace, alleging that he had interference requiring him to fly in Albanian airspace. He was forced to land on Rinas Airport by 2 Albanian MiG-15 flown by Anastas Ngjela and Mahmut Hysa. Major Howard J.Curran was later released but his T-33 was placed in the Gjirokastra castle museum, where it is still today.[33]
24 March 1958
Lt Col. Jacob E. Manch, a member of the Doolittle Raiders during World War 2, was killed in a T-33 jet trainer accident outside of Las Vegas, NV. He ordered the second crewmember to bail out and guided his powerless aircraft over a neighborhood, that included an elementary school, avoiding potential casualties on the ground. When he finally ejected, his parachute did not have sufficient time to properly operate, and he died when he hit the ground.[34]
20 May 1958
An Air National Guard Lockheed T-33A was involved in a mid-air collision with Capital Airlines Flight 300, a Vickers Viscount, over Brunswick, Maryland.
19 September 1968
A Chilean Air Force T-33A crewed by Sub-lieutenant Jorge Emberg and Second Lieutenant René Catalán crashed shortly after takeoff from El Bosque Air Base due to an engine failure.[35] Emberg managed to eject safely but Catalán and six people on the ground died when the aircraft crashed on the Santa Erna neighborhood.[36]
20 August 1971
On 20 August 1971, Pilot Officer Rashid Minhas was scheduled to fly a Lockheed T-33 jet trainer from PAF Base Masroor in Karachi. Bir Sreshtho Matiur Rahman, an instructor pilot,[37] saw Minhas about to take off and joined him via the instructor's seat.[38] Rahman then attempted to hijack the T-33 in midair, intending to fly the plane to India, defect, and join the Bangladesh Liberation War and fight for his motherland. Minhas sent a message to control tower that he has been hijacked before being knocked unconscious. The now alerted Pakistani Air Force scrambled F-86 Sabre jets but were unable to locate the T-33. In the meantime, Rashid regained consciousness and there was a struggle between the two pilots and the plane crashed in Pakistan, 40 kilometers from the Indian border, killing both pilots; the precise cause of the crash is unknown.[39]

Specifications (T-33A)

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3-view silhouette drawing of the Lockheed TF-80C

Data from Lockheed Aircraft since 1913[40]

General characteristics

  • Crew: 2
  • Length: 37 ft 9 in (11.51 m)
  • Wingspan: 38 ft 10.5 in (11.849 m)
  • Height: 11 ft 8 in (3.56 m)
  • Wing area: 234.8 sq ft (21.81 m2)
  • Airfoil: NACA 65-213[41]
  • Empty weight: 8,365 lb (3,794 kg)
  • Gross weight: 12,071 lb (5,475 kg)
  • Max takeoff weight: 15,061 lb (6,832 kg)
  • Powerplant: 1 × Allison J33-A-35 centrifugal flow turbojet engine, 5,400 lbf (24 kN) thrust for take-off with water injection
4,600 lbf (20,461.82 N) maximum continuous, dry

Performance

  • Maximum speed: 600 mph (970 km/h, 520 kn) at sea level
  • Cruise speed: 455 mph (732 km/h, 395 kn)
  • Range: 1,275 mi (2,052 km, 1,108 nmi)
  • Service ceiling: 48,000 ft (15,000 m)
  • Rate of climb: 4,870 ft/min (24.7 m/s)

Armament

  • Hardpoints: 2 with a capacity of 2,000 lb (907 kg) of bombs or rockets (AT-33)

See also

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Related development

Aircraft of comparable role, configuration, and era

Related lists

References

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  1. ^ "Fuerza Aérea desactiva cuatro aviones de entrenamiento y ataque T-33 – Diario Pagina Siete" (in Spanish). Archived from the original on 2017-08-01. Retrieved 2017-07-31.
  2. ^ Lockheed P-80/F-80 Archived 2007-12-19 at the Wayback Machine
  3. ^ "Early USAF Reconnaissance in Southeast Asia". National Museum of the United States Air Force™. Retrieved 2023-08-10.
  4. ^ Scholin, Allan R., "Aerospace World", Air Force and Space Digest, Air Force Association, Washington, D.C., March 1967, volume 50, number 3, page 38.
  5. ^ "Los aviones de entrenamiento y ataque T-33 de la FAB dejan de operar en Bolivia" (in Spanish). La Razón. 31 July 2017. Retrieved 31 July 2017.
  6. ^ Πτηση & Διαστημα (2019-03-18). "Ελληνικό Τ-33 εναντίον τουρκικού F-16 – και δεν είναι βιντεοπαιχνίδι". Πτήση & Διάστημα (in Greek). Retrieved 2019-06-26.
  7. ^ "787 First Flight from the chase plane." wired.com. Retrieved: 22 April 2010.
  8. ^ "PHOTOS: Boeing's Smallest Modern 737, the MAX 7, Takes its First Flight". AirlineReporter. 21 March 2018. Retrieved 2018-10-02.
  9. ^ "N109X Live Flight Tracking and History (T33 owned by BOEING LOGISTICS SPARES INC) ✈ 25-Jan-2020 ✈ KMWH - KBFI ✈ FlightAware". FlightAware. 25 January 2019. Retrieved 2020-01-27.
  10. ^ Hemmerdinger, Jon (4 December 2020). "Boeing retires vintage T-33 chase jets". Flight Global. Retrieved 2020-12-11.
  11. ^ "N38TZ (1965 NORTHROP T-38A owned by BOEING CO) Aircraft Registration". FlightAware.
  12. ^ Freeze, Di (June 2008). "Michael Dorn: A Trek worth Remembering". Airportjournals.com. Airport Journals. Retrieved June 13, 2015.
  13. ^ a b Jansen, Clay. " US Marine Corps Lockheed T-33 Shooting Star." Cloud 9 Photography, October 1961. Retrieved: 6 August 2013.
  14. ^ Beck, Simon. "Lockheed Shooting Star Series" Archived 2011-05-21 at the Wayback Machine. US Warplanes.net. Retrieved: 21 October 2011.
  15. ^ Gaillard, Pierre (1991). Les Avions Francaisde 1965 a 1990 (in French). Paris: Editions EPA. ISBN 2-85120-392-4.
  16. ^ "Iran unveils first home-made wide-body drone 'Khodkar'". Mehr News Agency. 2019-01-31. Retrieved 2024-03-29.
  17. ^ Siegrist 1987, p. 175.
  18. ^ International Air Power Review Summer 2001, p. 28.
  19. ^ Wasserbly, Daniel; Olguin, Jonathan R (1 August 2017). "Bolivia retires last T-33s trainer/attack aircraft, announces replacement". IHS Jane's 360. Archived from the original on 1 August 2017. Retrieved 1 August 2017.
  20. ^ Andrade 1982, p. 35
  21. ^ Schrøder, Hans (1991). Royal Danish Airforce. Ed. Kay S. Nielsen. Tøjhusmuseet, 1991, p. 1–64. ISBN 87-89022-24-6.
  22. ^ "Ethiopia Expands Air Fleet With C-130 Cargo Plane". Africa Defense Forum. 29 January 2019.
  23. ^ "Lockheed RT 33". Aeronautica Militare. Retrieved 29 May 2019.
  24. ^ "History of the Kawasaki Aerospace Division." Archived 2010-08-03 at the Wayback Machine Kawasaki Heavy Industries, Ltd. Retrieved: 21 March 2010.
  25. ^ Cooper, Grandolini & Delalande 2015, p. 8
  26. ^ Cooper 2017, p. 14
  27. ^ Pocock 1986, p. 92.
  28. ^ "www.tayyareci.com T-33 tayyaresi, T-33, T-33MKIII, RT-33A, Silverstar. 1951 - 2006 Period TUAF AIRCRAFT 1951 - 2006 dönemi Turk HvKK UCAKLARI". www.tayyareci.com. Retrieved 2021-04-04.
  29. ^ "Aircraft Enquiry: N109X" Archived 2016-10-09 at the Wayback Machine. FAA Registry. Retrieved: 11 Mar 2012.
  30. ^ "Memorias del Tiempo de Vuelo". www.pilotoviejo.com.
  31. ^ "Letelice Lockheed T-33A, RT-33A i TV-2 u JRV i njihove sudbine" (in Croatian). paluba.info. Retrieved 23 December 2014.
  32. ^ Obituary of Conrad Zubalik, buried in the Greensburg Catholic Cemetery, PA.
  33. ^ "Faqja Kryesore". August 13, 2019.
  34. ^ School History. OCLC 1021804936.
  35. ^ "Los Primeros Reactores Lockheed en la FACh". 26 May 2010.
  36. ^ "Historia de la Ley Nº 17.298".
  37. ^ "August 20 marks the death anniversary of Rashid Minhas". The Nation. 20 August 2014. Retrieved 19 June 2015.
  38. ^ "42nd Martyrdom Anniversary Pilot Officer Rashid Minhas Shaheed [Nishan-e-Hyder.] – SFP News". www.shaheedfoundation.org. Retrieved 3 January 2016.
  39. ^ "Rashid Minhas 39th death anniversary observed today". AAJ News. APP. Archived from the original on 10 August 2019. Retrieved 3 January 2016.
  40. ^ Francillon 1982, pp. 287, 293.
  41. ^ Lednicer, David. "The Incomplete Guide to Airfoil Usage". m-selig.ae.illinois.edu. Retrieved 16 April 2019.

Bibliography

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  • Baugher, Joe. "Lockheed P-80/F-80." USAF Fighters. Retrieved: 11 June 2011.
  • Cooper, Tom (2017). Hot Skies Over Yemen, Volume 1: Aerial Warfare Over the South Arabian Peninsula, 1962-1994. Solihull, UK: Helion & Company Publishing. ISBN 978-1-912174-23-2.
  • Cooper, Tom; Grandolini, Albert; Delalande, Arnaud (2015). Libyan Air Wars, Part 1: 1973-1985. Helion & Company Publishing. ISBN 978-1-909982-39-0.
  • Davis, Larry. P-80 Shooting Star. T-33/F-94 in action. Carrollton, Texas: Squadron/Signal Publications, 1980. ISBN 0-89747-099-0.
  • Dorr, Robert F. "P-80 Shooting Star Variants". Wings of Fame Vol. 11. London: Aerospace Publishing Ltd., 1998. ISBN 1-86184-017-9.
  • Francillon, René J. Lockheed Aircraft since 1913. London: Putnam, 1982. ISBN 0-370-30329-6.
  • "Fuerza Aérea Boliviana". International Air Power Review. Volume 1, Summer 2001. pp. 28–31. ISSN 1473-9917.
  • Gaillard, Pierre (1991). Les Avions Français 1965 a 1990. Paris: Editions EPA. ISBN 2-85120-392-4.
  • Hallion, Richard P. (April–July 1980). "T-33 and F-94 ... More Stars in the Lockheed Galaxy". Air Enthusiast. No. 12. pp. 11–23. ISSN 0143-5450.
  • Hiltermann, Gijs. Lockheed T-33 (Vliegend in Nederland 3) (in Dutch). Eindhoven, Netherlands: Flash Aviation, 1988. ISBN 978-90-71553-04-2.
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  • Pace, Steve. Lockheed Skunk Works. St. Paul, Minnesota: Motorbooks International, 1992. ISBN 0-87938-632-0.
  • Pocock, Chris. "Singapore Sting". Air International, Vol. 31, No. 2. pp. 59–64, 90–92.
  • Siegrist, Martin. "Bolivian Air Power — Seventy Years On". Air International, Vol. 33, No. 4, October 1987. pp. 170–176, 194. ISSN 0306-5634.
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