World War II Vehicles, Tanks and Airplanes, picture of P-51 Mustang
World War II Vehicles, Tanks and Airplanes, picture of T-34/85
World War II Vehicles, Tanks and Airplanes, picture of Fw-190
World War II Vehicles, Tanks and Airplanes, picture of Churchill
wwiivehicles.com ©2019
Search:
Italy's flagItaly's Royal Airforce marking

Italy's Savoia-Marchetti SM.55X flying boat

Photos

  • Savoia-Marchetti SM. 55X flying boat
  • Savoia-Marchetti SM. 55X flying boat

Design

The Savoia-Marchetti SM. 55X could carry a torpedo or bombs under the center of the aircraft.

Construction

The construction considered of spruce, ash, and plywood with fabric covered control surfaces.

Engines

There were two engines that were placed above the wing.

Hulls

There were two hulls that were 14' 9" between their centers. The pilot was located in the leading edge.

Armament

In the front and back of the hull were gun positions.

Production

  • Savoia-Marchetti SM.55C:
    • Manufacturer: Aero Espressa Italiana
  • Savoia-Marchetti SM.55M:
  • Savoia-Marchetti SM.55P:
    • Manufacturer: Aero Espressa Italiana

Variants

  • Savoia-Marchetti SM.55C: Could carry 10 - 12 passengers.
  • Savoia-Marchetti SM.55M: Had two Lorraine-Dietrich (400 HP) engines. Observers in the rear of each hull armed with 7.7 mm machine guns in Scarff ring mounts. Could carry torpedo, bombs, or mines below the center of the wing.
  • Savoia-Marchetti SM.55P: Could carry passengers.

Usage

In the 1930s there were many long distance trips to North America that were taken by SM.55s that showed that Italy could design excellent aircraft.

World War II

By the time of World War II there were only a few SM.55s left and none were used in battle.

Specifications

  Savoia-Marchetti SM. 55
Dimensions  
Span 78' 9"
Length 52' 6"
Height 16' 5"
Wing area 1,000.7 sq ft
Weight  
Empty - Military Models 8,140 lb
Loaded - Military Models 12,540 lb
Performance  
Speed 131 mph
Cruising speed  
Climb to 3,280' 3 minutes 20 seconds
Climb to 6,560' 8 minutes 21 seconds
Climb to 16,400' 1 hour
Duration 4 - 10 hours
  Savoia-Marchetti SM. 55A
Engine (Type) 2: FIAT A.24R
Cylinders V 12
HP 700 each
Dimensions  
Span 79' 11"
Length 54' 2"
Wing area 989.9 sq ft
Weight  
Empty 11,440 lb
Loaded 16,940 lb
Performance  
Speed 147 mph
Climb to 3,280' 4 minutes 40 seconds
Climb to 6,560' 11 minutes 40 seconds
Climb to 9,840' 23 minutes
Climb to 13,120' 48 minutes
Service Ceiling 13,776'
Range 1,242 - 2,174 miles
  Savoia-Marchetti SM. 55X
Type Torpedo bomber
Engine (Type) 2: Isotta Fraschini Asso
Cooling Water
HP 750 each
Dimensions  
Span 79' 11"
Length 54' 2"
Height 16' 5"
Weight  
Loaded 17,000 lb
Performance  
Speed 174 mph, 175 mph
Speed - Cruising 146 mph
Range 2,794 miles, 2,800 miles

Sources:

  1. Aeronautics Aircraft Spotters' Handbook, Ensign L. C. Guthman, 1943
  2. Italian Civil and Military Aircraft 1930-1945, Jonathan Thompson, 1963
20th Century American Military History Crucial Site