CANT 25
| CANT 25 | |
|---|---|
 CANT 25M |
|
| Type: | Hunting flying boat |
| Design country: | |
| Manufacturer: | |
| First flight: |
1927 |
| Commissioning: |
1931 |
The CANT 25 is an Italian fighter designed as a flying boat from the Trieste- based, former company Cantieri Aeronautici e Navali Triestini (CANT).
development
The CANT 20 was designed in the second half of the 1920s for use as an aircraft on board the cruisers of the Alberto di Giussano class . The first flight took place in 1927, but the introduction of the first production version CANT 25M did not take place until 1931. The following year, the improved version CANT 25AR appeared with a shortened upper wing and folding wings, which instead of the struts of the first version received wire bracing and was reinforced for catapult use .
construction
The CANT 25 is a catapult-capable double-decker in mixed construction . The single-stage hull has longitudinal members and transverse bulkheads made of ash wood , the hull bottom is made of two layers of mahogany with an intermediate layer of fabric-covered plywood . The side walls consist of plywood planking, which is double-layered at the level of the waterline . The single-seat pilot's cabin is not closed.
The structure of the two series versions is different. While the CANT 25M has two-part wings with a canopy center piece and the upper wing has a significantly larger span and depth than the lower one, the surfaces of the CANT 25AR are foldable and therefore designed in three parts and the upper wing is only slightly longer and deeper. On the 25M, two outer V-struts and a crossed I-stem pair on the inside form the connection between the upper and lower wings, while on the 25AR this is ensured by two I-stems on the outside and one on the inside with a wire crossover in between. The nacelle with the two-bladed pressure screw drive and the lubricant reservoir is attached to a motor bracket between the wings ; the fuel tank is housed in the fuselage. The wings themselves consist of two spars and aluminum ribs that are covered with fabric. Only the upper wing is equipped with ailerons ; however, these extend over almost the entire trailing edge of the wing. A support float made of duralumin is attached to each side of the outer surfaces .
The CANT 25 has a tail made of fabric-covered steel tubular structures with a high fixed and supported to the hull bottom horizontal stabilizer . The lower part of the fin is formed with the body in one piece, on the upper part are fitted together with the horizontal stabilizer.
Technical specifications
| Parameter | Data (CANT 25M) | Data (CANT 25AR) |
|---|---|---|
| crew | 1 | |
| length | 8.75 m | |
| span | 12 m | 10.4 m |
| height | k. A. | |
| Wing area | 29 m² | 30.9 m² |
| Wing loading | 58 kg / m² | 55.3 kg / m² |
| Power load | 4 kg / hp | 3.9 kg / hp |
| Area performance | 14.1 hp / m² | 14.3 hp / m² |
| Preparation mass | 1215 kg | 1276 kg |
| Takeoff mass | 1645 kg | 1706 kg |
| Engine | a water-cooled twelve-cylinder - four stroke - V engine | |
| Type | Fiat A 20 | |
| power | 410 hp (302 kW) | 440 hp (324 kW) |
| Top speed | 242 km / h | 245 km / h |
| Marching speed | 210 km / h | k. A. |
| Minimum speed | 90 km / h | 88 km / h |
| Rise time | 2.5 min at 1000 m 6 min at 2000 m 10.2 min at 3000 m 28 min at 5000 m |
26.5 min at 5000 m |
| Summit height | 5500 m (flown) | 6200 m |
| Range | 450 km | 900 km |
| Armament | two rigid 7.7 mm Vickers MG in the fuselage bow , each with 500 rounds |
|
literature
- Peter All-Fernandez (ed.): Aircraft from A to Z . Volume 1: Aamsa Quail-Consolidated P2Y. Bernard & Graefe, Koblenz 1987, ISBN 3-7637-5904-2 , p. 360/361 .
- Werner von Langsdorff : Handbook of aviation . Born in 1939. 2nd, unchanged edition. J. F. Lehmann, Munich 1937, p. 279/280 .
Web links
- CANT 25. Retrieved January 29, 2019 (Russian).