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CASA C-101 Aviojet

CASA · Advanced Jet Trainer / Light Attack · Spain · Cold War (1970–1991)

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The CASA C-101 Aviojet is a Spanish single-engine, two-seat jet trainer and light combat aircraft developed by Construcciones Aeronáuticas SA (CASA, now Airbus) and built from 1979 to 1991. It entered Spanish Air Force service in 1980 and served as Spain's principal fast-jet trainer for over four decades. Export sales reached Chile — the largest foreign customer — along with Honduras and Jordan. Production at CASA's Getafe facility in Spain ended in 1991 after 167 aircraft. Spanish Air Force retirement came in 2024, with the Pilatus PC-21 chosen as replacement.

Length is 41 ft (12.5 m) with a 35-ft (10.6 m) wingspan. Empty weight runs 7,400 lb against a maximum take-off weight of 13,200 lb. Power comes from a single Garrett TFE731-2-2J or TFE731-3-1J turbofan in the 3,500–3,950 lbf class. Maximum speed is Mach 0.79 (590 mph at altitude), with a typical combat radius of 270 nmi carrying external fuel and weapons, and a service ceiling of 41,000 ft. Six hardpoints carry up to 4,400 lb of stores. The airframe pairs a tandem cockpit with a low-mounted wing — a departure from the high wing common on lead-in fighter trainers — and supports Mk-80 series bombs, the AGM-65 Maverick, and AIM-9 Sidewinder air-to-air missiles.

Fast-jet pilot training is the C-101's primary role, giving Spanish and foreign air arms a low-cost route into front-line fighters. Several export operators have flown the type in light-combat and counter-insurgency missions, with the Chilean Air Force the most active and the Honduran Air Force using the aircraft against insurgent threats. The Spanish Air Force aerobatic team Patrulla Águila flew 7 C-101s from 1985 to 2024, performing the team's final C-101 display in 2024. Transition to the Pilatus PC-21 is under way, with full service entry planned for 2025–2026.

For Kids — a shorter, friendlier version

The CASA C-101 Aviojet is a Spanish training jet. CASA in Madrid first flew the C-101 in 1977 and the Spanish Air Force adopted it in 1980. The C-101 trains pilots before they move up to faster combat jets like the Eurofighter. Two crew members sit one behind the other.

The C-101 has one engine, a Garrett TFE731 turbofan making 3,500 pounds of thrust. Top speed is 478 mph, faster than a high-speed train. The plane is 41 feet long, about the length of a school bus, with a 35-foot wingspan. Two crew sit one behind the other under a big clear bubble canopy.

The C-101 became famous as the plane of the Spanish Patrulla Águila airshow team. Seven Patrulla Águila C-101s fly together at airshows around Spain, leaving red and yellow smoke trails (Spain's national colors). The team has performed since 1985.

About 165 C-101s were built. Spain, Chile, Honduras, and Jordan all bought them. Spain still flies its C-101s as trainers and Patrulla Águila planes in 2025. Newer Chilean A-36 versions are armed for ground attack as well as training.

Fun Facts

Spain's Patrulla Águila airshow team has flown C-101s since 1985.
The C-101 is 41 feet long, about the length of a school bus.
Top speed is 478 mph, faster than a high-speed train.
Chile's A-36 Halcón is an armed C-101 version for ground attack.
About 165 C-101s were built in Spain.
Spain still flies C-101s today as trainers and airshow planes.
Each C-101 costs about $6 million, much less than a modern fighter.

Kids’ Questions

Why train pilots in a jet trainer?

Combat jet fighters are very fast, complex, and dangerous. Pilots start in slow propeller trainers. Then they move up to jet trainers like the C-101, which fly faster and feel like real fighters. The C-101 is small and forgiving, so students can learn jet flying without the risk of crashing a multi-million dollar fighter.

What is the Patrulla Águila?

The Patrulla Águila (Eagle Patrol) is the Spanish Air Force's airshow team, like the U.S. Blue Angels or French Patrouille de France. Seven pilots fly C-101s in tight formations, leaving red and yellow smoke trails. They perform at airshows in Spain and across Europe, showing off Spanish pilot skill.

Why armed versions?

Chile bought C-101s in the 1980s and added a 30 mm cannon, plus bombs and rockets. The result was the A-36 Halcón, which both trains pilots AND attacks ground targets. Many small air forces buy armed trainers because they get two airplanes for the price of one: a trainer in peacetime, an attack plane in wartime.

Variants

C-101EB-01 (Spanish): Original 1980 Spanish Air Force variant; 88 delivered. Backbone of Spanish fast-jet training through 2024 retirement, including Patrulla Águila aerobatic team service.
C-101BB (Chilean): Chilean Air Force variant; 14 delivered. Mission systems tailored to Chilean service requirements and combat-deployed in Chilean operations.
C-101CC (Chilean light combat): Chilean light-combat variant with expanded weapons load. Flown by the Chilean Air Force in counter-insurgency and ground-attack roles.
C-101DD: Updated avionics variant offered to export operators.
Pilatus PC-21 (Spanish replacement): Pilatus PC-21 turboprop trainer replacing the C-101 in Spanish Air Force service from 2024. Turboprop design covered separately at PC-21.

Notable Operators

Spanish Air Force (former): Primary operator; 88 C-101s in service 1980–2024. Final retirement 2024, replaced by the Pilatus PC-21. Included Patrulla Águila aerobatic team service.
Chilean Air Force: Largest export customer, with 14 C-101BB and CC airframes flown by Chilean training squadrons and in light-combat operations.
Honduras: 12 C-101s flown by the Honduran Air Force for fast-jet training and light-combat duties.
Jordan: 16 C-101s in Royal Jordanian Air Force service, used for fast-jet training.

Frequently Asked Questions

What is Patrulla Águila?

Patrulla Águila is the Spanish Air Force aerobatic team. Formed in 1985, it operated 7 CASA C-101 Aviojets from 1985 to 2024, flying 30–40 displays per year at Spanish and international air shows from the Académia General del Aire at San Javier, Murcia. Its Spanish-flag-coloured C-101s with smoke trails provided Spain's aerobatic display team for nearly four decades. Transition to the Pilatus PC-21 is under way, with full service entry planned for 2025–2026.

Has the C-101 been combat-deployed?

Yes, principally by the Chilean Air Force. Chilean C-101BB and CC airframes have flown counter-insurgency operations in northern Chile, low-intensity ground-attack missions, and training exercises. Honduran C-101s have been used in Honduran counter-insurgency operations. Spanish Air Force C-101s were used principally for training, though combat-deployment proposals were considered.

How does the C-101 compare to the BAE Hawk?

Both are fast-jet trainers of the same era. The BAE Hawk reached around 1,000 aircraft and 25+ operators, establishing a global market presence. The C-101 reached 167 aircraft and 4 operators. Performance class is broadly comparable; the Hawk's larger production run and broader operator base have been the main differentiator. Spain's selection of the PC-21 (and interest in Hawk-derivative concepts such as the T-7 Red Hawk) for C-101 replacement reflects a preference for established replacement platforms.

Why was the C-101 retired?

Service-life expiration and PC-21 procurement. Spanish Air Force C-101 airframes had reached structural-life limits by the 2020s, and life-extension work would have been costly. The Spanish Air Force selected the turboprop-based Pilatus PC-21 as its lead-in fighter trainer replacement, with the final Spanish C-101 retired in 2024. Foreign operators continue C-101 service with periodic upgrades.

Are C-101s still in service?

Yes, in limited but continuing service. Chile fields about 14 active, Honduras about 10, and Jordan about 12. The Spanish Air Force retired the type in 2024. Most foreign operators expect to fly the C-101 through 2030 and beyond with periodic upgrades, reflecting continued utility and replacement economics.

Sources

Airbus — C-101 heritage
Wikipedia — CASA C-101 Aviojet — CC BY-SA.