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Latécoère Late 21



The first flying-boat produced by Latecoere was the Late 21, built for Aéropostale for its Marseille-Algiers postal and passenger routes. The prototype, first flown in 1926, had a parasol wing with lower stub wings which acted as stabilising sponsons. Two 313kW Gnome-Rhone Jupiter 9Ab radials were mounted in tandem on the wing, and the single-step hull terminated in a large single fin and rudder. Open side-by-side pilots' cockpits were located in line with the wing leading edge and there was cabin accommodation for seven passengers. Successful tests with the Late 21 led to the construction in 1927 of five slightly modified Late 21bis and a single Late 21ter, with Farman 12We engines. The Late 21 bis spanned 22.00m, had a maximum take-off weight of 5730kg and possessed a maximum speed of 172km/h.
The Late 23 was an enlarged version of the Late 21, powered by Farman engines and spanning 28.00m.

Laté 21 - 1926 parasol monoplane flying boat, 2 x push-pull 420 hp GR Jupiter 9Ab, 21 m span

Laté 21: prototype N°1/72 F-ESDH, conv. into Laté 21bis F-AIHN

Laté 21bis: production model, different hull length, fins shortened
1 x Laté 21 conv., plus F-AIIE, 'FH, 'HN, 'HP (conv. to Laté 23), 'HQ

Laté 21ter: 2 x 500 hp Farman 12We W12 engines
F-AIKL N°1/76 ,1927 to Aéropostale, discarded Oct 1931

Engine: 2 x Gnome-Rhone Jupiter 9Ab , 420hp
Max take-off weight: 5730 kg / 12633 lb
Empty weight: 3530 kg / 7782 lb
Wingspan: 22.00 m / 72 ft 2 in
Length: 17.95 m / 58 ft 11 in
Height: 4.85 m / 15 ft 11 in
Wing area: 88.00 sq.m / 947.22 sq ft
Max. speed: 172 km/h / 107 mph
Cruise speed: 144 km/h / 89 mph
Ceiling: 3600 m / 11800 ft
800 km / 497 miles
Crew: 3
Passengers: 5-7


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