Military Wiki
Role Flying boat bomber
National origin Italy
Manufacturer Macchi
First flight 1924

The Macchi M.24 was a flying boat produced in Italy during the 1920s. Originally intended as a bomber, it was eventually produced for civilian use as well.[1][2] The M.24 resembled a scaled-up version of earlier Macchi flying boat bombers such as the M.9 and M.18, sharing their biplane configuration and Warren truss-style interplane struts. However, while these earlier aircraft were single-engine types, the M.24 had twin engines mounted in a tractor-pusher pair on struts in the interplane gap.[1][2] Also like the M.18, it featured an open position in the bow for a gunner, but added a second such position amidships as well.[1][2]

Two M.24s made a demonstration flight in 1925 from Macchi's home on Lake Varese, crossing the Alps to Amsterdam, Copenhagen, Stockholm, Leningrad and home again.[1] This feat was followed by torpedo-launching experiments.[2] The M.24 saw extensive use with the Italian Navy, and several were purchased by the Spanish Navy.[2]

A civil version with equal-span wings was developed in 1927 as the M.24bis. This featured an enclosed cabin within the forward hull that could seat eight passengers. Aero Espresso flew these on its Brindisi-Athens-Constantinople route,[1] and SITA operated them on routes in the Mediterranean as well.[2]


  • M.24 - initial production version - sesquiplane with Fiat A.12 engines
  • M.24bis - equal-span version with Lorraine-Dietrich or Isotta-Fraschini Asso engines, produced in both military and civil subtypes
  • M.24ter - military sesquiplane version with Isotta-Fraschini Asso engines

Specifications (M.24ter)[]

Data from World Aircraft Information Files File 901 Sheet 02

General characteristics

  • Crew: 3
  • Length: 14.63 m (48 ft 0 in)
  • Wingspan: 22.00 m (72 ft 2 in)
  • Height: 4.65 m (15 ft 3 in)
  • Empty weight: 3,730 kg (8,223 lb)
  • Gross weight: 5,500 kg (12,125 lb)
  • Powerplant: 2 × Isotta Fraschini Asso 500, 380 kW (510 hp) each


  • Maximum speed: 185 km/h (115 mph)
  • Range: 700 km (435 miles)
  • Service ceiling: 4,000 m (13,000 ft)


  • 1 × 7.7 mm (.303 in) Vickers machine gun in open position in bow
  • 1 × 7.7 mm (.303 in) Vickers machine gun in open position amidships
  • 800 kg (1,874 lb) of bombs
  • See also[]


    1. 1.0 1.1 1.2 1.3 1.4 Taylor 1989, 617
    2. 2.0 2.1 2.2 2.3 2.4 2.5 World Aircraft Information Files File 901 Sheet 02


    • Taylor, Michael J. H. (1989). Jane's Encyclopedia of Aviation. London: Studio Editions. 
    • World Aircraft Information Files. London: Bright Star Publishing. 

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