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One of the Czech industry's most successful aircraft designs, the Delfin saw widespread use in the Soviet Union as the Warsaw Pact's primary advanced trainer for more than a decade in the early 1960s. Early design studies for a two-seat jet trainer were conducted by K Tomas and Z Rubic in 1955. Features of the resulting L-29 Delfin include its design concept of simplicity. Examples of this include easy construction and maintenance and docile handling capabilities. Other design features are typical for jet trainers of the era, including a small turbojet engine, straight wing, tandem seating, and lightweight ejection seats. Unlike many of its contemporaries and later jet trainers, the L-29 features a T tail and can operate from grass, waterlogged, and dirt strips. The first XL-29 prototype was powered by a Bristol Siddeley Viper engine and flew for the first time on April 5, 1960 powered by the indigenously developed M 701 turbojet. The following year the Delfin was pitted against the Yak-30 and PZL Mielec TS-11 Iskra in a competitive fly-off. The result of that competition saw the Delfin equip every Warsaw Pact nation except for Poland, which chose to stay with the Iskra. The Soviet Union alone took over 2,000 Delfins, while significant numbers also served in Czechoslovakia, East Germany, and Hungary. In these countries the Delfin was used in all-through training from ab iniito to advanced stages. The first Delfins were delivered in 1963, the last of over 3,600 rolled off the production line in 1974. Almost all production was of the basic trainer variant (codename Maya), although two other variants did appear. Small numbers of a single seat L-29A Delfin Akrobats were built for aerobatics while a prototype L-29R dedicated attack aircraft was also built. Total L-29 production was 3,000.


[edit] Specifications (L-29)

[edit] General characteristics

  • Crew: 2: student and instructor
  • Length: 10.81 m (35 ft 6 in)
  • Wingspan: 10.29 m (33 ft 9 in)
  • Height: 3.13 m (10 ft 3 in)
  • Wing area: 19.8 m² (213 ft²)
  • Empty weight: 2,280 kg (5,030 lb)
  • Loaded weight: 3,286 kg (7,244 lb)
  • Max takeoff weight: 3,540 kg (7,800 lb)
  • Powerplant: 1× Motorlet M-701C , 8.7 kN (1,960 lbs)

[edit] Performance

  • Maximum speed: 820 km/h (443 knots, 510 mph)
  • Range: 900 km (486 nm, 560 mi)
  • Service ceiling: 11,500 m (37,700 ft)
  • Rate of climb: 14 m/s (2,800 ft/min)
  • Wing loading: 166 kg/m² (34.3 lb/ft²)
  • Thrust/weight: 0.25

[edit] Armament

  • 200 kg (440 lb) of various guns, bombs, rockets, and missiles on external hardpoints

[edit] Gallery

[edit] Video

L-29 Walk-Around with RomaYouTube — rate / comment / share
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