Special Hobby 1/72 Piaggio P.108B Serie II
Bombardiere (Bomber)
by Richard Mendes


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The Piaggio P.108B (Bombardieri) designed by Giovanni Casiraghi (1901-1984), first flown on November 24, 1939, was Italy's only operational strategic four-engine bomber in World War II, 23 Bombardieri were constructed including one prototype (M.M.22001) as well as one P.108A Artigliere ("Gunship") variant (M.M.24318) armed with a nose-mounted 102mm (102/40) cannon for anti-shipping use.

Two Bombardieri series were built: eleven Serie I with single 12.7mm Breda SAFAT machine gun mounted in rotating nose turrets operated by the bombardier, twelve Serie II without the nose turret. All including the P.108A were otherwise equipped with fuselage beam mounted 7.7 mm SAFATs, two upper outer engine nacelle-mounted rear facing gun turrets each with a pair of 12.7mm guns remotely controlled from dorsal fuselage sighting stations – the only such remote gunnery control arrangement of any operational WWII combat aircraft – as well as a retractable ventral gun turret equipped with a single 12.7mm gun.

Piaggio P.108 Bombardieri underwent several factory and field modifications particularly with respect to the engine exhaust systems and pitot tube placements. Serie I aircraft had above mainwing exhausts with or without Vickers Wellington-style exhaust manifolds for nighttime combat operations; Serie II including the P.108A were equipped with exhausts below the mainwings. Serie I and II aircraft had pitot tube masts placed on and below the nose as on port sides in "spear", "plowshare" and "bent pitchfork" arrangements with differing tube head mountings, the P.108A uniquely sporting its tubes on the fuselage dorsal radio mast as a "plowshare" I scratch-built from styrene sheet plastic and cut EZ Line stretch thread replicating the pitot tubes.





Up till the 1970s the Piaggio P.108 was little known by WWII aircraft aficionados and modelers outside of Italy the lone exception mention in Jonathan W. Thompson’s Italian Civil and Military Aircraft 1930-1945 (Aero Publishers, Inc. 1963) as well as William Green’s aviation publications et. al. but has garnered more interest since thanks to meticulously researched indigenous Italian references particularly Ali d’Italia #15 P.108 (Giorgio Apostolo Editore, Milano via La Blancarella Aeronautica, Torino 2000) with respect to development history and construction details. Bombardieri served operationally solely with the 274a Squadriglia Long Range Bomber Group from June 1, 1941 up till the September 8, 1943 Italian Armistice for day and night bombing as well as anti-shipping duties against strategic targets particularly Gibraltar at night.























Construction

The 1/72nd scale 2005-vintage Special Hobby SH72035 and 2006 Special Hobby SH72065 are the only injected-molded kits with supplemental resin parts available in any scale respectively of the Piaggio P.108A and P.108B Serie II the only others being the 1/72nd 1980s Challenge 7201 vacuform and Airmodel AM-403 vacuform airframe with injected-molded landing gear, gun turrets etc. P.108B kits latter supplemented with RCR Models 014 engine cowlings, propellers et. al. resin accessories none of which are available today.



The 2005 and 2006-vintage Czech-built P.108 kits are well crafted and molded though lacking in fuselage interior detail surprising given excellent period interior photos and drawings have been available in Ali d’Italia #15 since 2000. A number of modelers notably those posting on the STORMO Magazine website have made excellent models of the P.108B with considerable scratch-built interior and exterior super-detailing, not having time or resources to fully super-detail my P.108 Artigliere and Bombardieri models chose only to "super-detail" the fuselage nose and beam guns making them trainable as well as allowing the mainwing gun turrets/fuselage sighting stations and fuselage ventral gun turret to rotate.

The Special Hobby kits come with injected-molded and resin parts to build not only the P.108A or P.108B Serie II but the Serie I as well though this isn’t documented in the kit instructions. Not keen on buying more than the minimum number of kits necessary to model the P.108A, P.108B Serie I and II variants I chose to build one P.108A with the "gun nose" glued on despite it being tapered inwards towards the top relative to the fuselage, one generic P.108B (i.e., no markings particular to specific aircraft) with shaped sheet styrene prongs glued on the forward fuselage to act as a plug. I constructed two P.108B Serie I noses with gun turrets each with "spear" and "plowshare" pitot-tube masts as well as a P.108B Serie II nose without a turret, plugging-in each nose as desired for the plane I wanted.





The fuselage halve interiors and associated interior parts, cockpit and ventral turret frames were base painted Humbrol 78 Matt Cockpit Green + Testors Flat White 50/50 mix + 36% Flat White shading enamels replicating Verde Anticorrosine, flight deck, beam gun mounts etc. spray and hand painted an assortment of Testors enamel colors, guns Testors Flat Black and White "special mix".

All model exteriors including the mainwing gun turrets were spray painted Humbrol 91 Matt Black Green + 36% Testors Flat White enamels replicating Verde Oliva Scuro (VOS) 2, Testors Model Master 1726 Light Gull Grey + 36% Testors Flat White enamels replicating Grigio Azzurro Chiaro (GAC) 1 "weathering" with the out-of-bottle 91 and 1726 colors. The ventral turret was over sprayed with GAC, mainwing turret guns "special mix", sighting stations spray and hand painted VOS, Testors Steel and "special mix".



Landing gear, propellers et. al. exterior kit parts well as a white fuselage identification band were spray and hand painted on with an assortment of Testors enamel colors the entire model over sprayed with Testors Clear Semi-Gloss Lacquer after applying kit fasci markings and Tauro Model House of Savoy crests on the rudder. Unlike most model builds I chose to apply white Distintivo di Guerra decal crosses on the rudders to avoid misaligning them if were spray painted on that as well as fear of breaking off tailplanes or fuselage tail landing gear units whilst doing so.



Unfortunately after being plugged in the fuselage each nose is slightly misaligned this despite considerable effort spent in paint masking them to be aligned, deemed that acceptable given the objective was being able to display and photograph each of the Serie I variants without having to buy any more model kits!






Technical Data

Aircraft: Piaggio P.108B
Manufacturer: S.A. Piaggio & Co.
Type: Bomber
Year: 1942
Engine: Four Piaggio P.XII RC 35, 18-cylinder radial, air-cooled, 1,350 hp each
Wingspan: 105 ft (32 m)
Length: 75 ft 2in (22.92 m)
Height: 17 ft (5.18 m)
Weight: 65,970 lb (29,855 kg) (Loaded)
Maximum Speed: 261 mph (420 km/h) at 12.800 ft (3,900 m)
Ceiling: 26,400 ft (8,050 m)
Range: 2,190 miles (3,520 km)
Armament: 8 x 12.7mm BREDA SAFAT machine guns; 7,700 lb (3,500 kg) of bombs
Crew: 6

Additional Images


 BONUS: Piaggio P.108A, P.108B and P.108T Build Portraits

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December, 2019
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