Savoia-Marchetti SM.79
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Re: Savoia-Marchetti SM.79
From 1939 onwards, torpedoes were carried externally, as were larger bombs, when two hardpoints were fitted under the inner wing.
[Vous devez être inscrit et connecté pour voir ce lien] Theoretically, two torpedoes could be carried, but the performance and the manoeuvrability of the aircraft were so reduced that usually only one was carried.
The SM.79's overall payload of 3,800 kg (8,380 lb) precluded carrying 1,600-1,860 kg (3,530-4,100 lb) total of bombs without a noticeable reduction of the fuel load (approximately 2,400 kg/5,290 lb, when full).
[Vous devez être inscrit et connecté pour voir ce lien] The standard torpedo, a 1938 [Vous devez être inscrit et connecté pour voir ce lien] design, had a weight of 876 kg (1,931 lb), length of 5.46 m (17.9 ft) and a 170 kg (380 lb) HE warhead.
It had a 3 km (1.86 mi) range at 74 km/h (40 kn), and could be launched from a wide range of speeds and altitudes: 40–120 m (130–390 ft) and up to 300 km/h (186 mph) maximum.
[Vous devez être inscrit et connecté pour voir ce lien]It took over 10 years to develop effective torpedo-bombing techniques; consequently, with the failure of the [Vous devez être inscrit et connecté pour voir ce lien] (its intended successor) and the lack of power of the [Vous devez être inscrit et connecté pour voir ce lien], only the SM.79 continued to serve as a torpedo bomber until 1944, despite trials with many types of aircraft, including the [Vous devez être inscrit et connecté pour voir ce lien]S.
[Vous devez être inscrit et connecté pour voir ce lien] Theoretically, two torpedoes could be carried, but the performance and the manoeuvrability of the aircraft were so reduced that usually only one was carried.
The SM.79's overall payload of 3,800 kg (8,380 lb) precluded carrying 1,600-1,860 kg (3,530-4,100 lb) total of bombs without a noticeable reduction of the fuel load (approximately 2,400 kg/5,290 lb, when full).
[Vous devez être inscrit et connecté pour voir ce lien] The standard torpedo, a 1938 [Vous devez être inscrit et connecté pour voir ce lien] design, had a weight of 876 kg (1,931 lb), length of 5.46 m (17.9 ft) and a 170 kg (380 lb) HE warhead.
It had a 3 km (1.86 mi) range at 74 km/h (40 kn), and could be launched from a wide range of speeds and altitudes: 40–120 m (130–390 ft) and up to 300 km/h (186 mph) maximum.
[Vous devez être inscrit et connecté pour voir ce lien]It took over 10 years to develop effective torpedo-bombing techniques; consequently, with the failure of the [Vous devez être inscrit et connecté pour voir ce lien] (its intended successor) and the lack of power of the [Vous devez être inscrit et connecté pour voir ce lien], only the SM.79 continued to serve as a torpedo bomber until 1944, despite trials with many types of aircraft, including the [Vous devez être inscrit et connecté pour voir ce lien]S.
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Re: Savoia-Marchetti SM.79
Record-setting aircraft
Despite Italy's failure to win the [Vous devez être inscrit et connecté pour voir ce lien], support for aeronautical feats continued as part of [Vous devez être inscrit et connecté pour voir ce lien]'s propaganda campaign to promote [Vous devez être inscrit et connecté pour voir ce lien], and following two initial successes, further Sparvieros were modified to set speed records.
The SM.79 prototype I-MAGO was modified to carry 6,100 kg (13,448 lb) bombs internally, enabling it to attempt records while carrying a payload, and on 23 September 1935 flew for 2,000 km (1,240 mi) with a 2,000 kg (4,410 lb) load at an average speed of 389.61 km/h (242.09 mph), breaking six world records.[Vous devez être inscrit et connecté pour voir ce lien]
Despite Italy's failure to win the [Vous devez être inscrit et connecté pour voir ce lien], support for aeronautical feats continued as part of [Vous devez être inscrit et connecté pour voir ce lien]'s propaganda campaign to promote [Vous devez être inscrit et connecté pour voir ce lien], and following two initial successes, further Sparvieros were modified to set speed records.
The SM.79 prototype I-MAGO was modified to carry 6,100 kg (13,448 lb) bombs internally, enabling it to attempt records while carrying a payload, and on 23 September 1935 flew for 2,000 km (1,240 mi) with a 2,000 kg (4,410 lb) load at an average speed of 389.61 km/h (242.09 mph), breaking six world records.[Vous devez être inscrit et connecté pour voir ce lien]
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Re: Savoia-Marchetti SM.79
Like on the prototype, the "hump" was not fitted to some of the first production aircraft, being transformed into performance aircraft known as the SM.79CS.
One of them set further records in 1937: with three Piaggio P.XI RC.40 engines (for a total of 2,237 kW/3,000 hp) it averaged 423.618 km/h (263.224 mph) over 1,000 km (620 mi) with a 2,000 kg (4,410 lb) payload.
The record then improved to 444.115 km/h (275.960 mph), while another SM.79 achieved 428.296 km/h (266.130 mph) in the 2,000 km (1,240 mi)/ 2,000 kg (4,410 lb) category. Unofficially, a speed of 472 km/h (293 mph) was later achieved in the same category.
One of them set further records in 1937: with three Piaggio P.XI RC.40 engines (for a total of 2,237 kW/3,000 hp) it averaged 423.618 km/h (263.224 mph) over 1,000 km (620 mi) with a 2,000 kg (4,410 lb) payload.
The record then improved to 444.115 km/h (275.960 mph), while another SM.79 achieved 428.296 km/h (266.130 mph) in the 2,000 km (1,240 mi)/ 2,000 kg (4,410 lb) category. Unofficially, a speed of 472 km/h (293 mph) was later achieved in the same category.
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Re: Savoia-Marchetti SM.79
Five SM.79CSs went on to enter the [Vous devez être inscrit et connecté pour voir ce lien]-[Vous devez être inscrit et connecté pour voir ce lien]-[Vous devez être inscrit et connecté pour voir ce lien] race, where I-CUPA, I-FILU and I-BIMU took the first three positions, while the other two were placed sixth and seventh.
The last was heavily damaged in Damascus.
Two [Vous devez être inscrit et connecté pour voir ce lien] also competed, but achieved only sixth (equal with one SM.79) and eighth places.
Three of the SM.79CSs were modified to cross the [Vous devez être inscrit et connecté pour voir ce lien] and reach Brazil.
They took off on 24 January 1938 and landed in [Vous devez être inscrit et connecté pour voir ce lien] 11 hours later, then headed for [Vous devez être inscrit et connecté pour voir ce lien] arriving at 2245 local time on 25 January.
One faulty aircraft, however, landed at [Vous devez être inscrit et connecté pour voir ce lien].
The aircraft remained in Brazil and were donated to the [Vous devez être inscrit et connecté pour voir ce lien].[Vous devez être inscrit et connecté pour voir ce lien]
The last was heavily damaged in Damascus.
Two [Vous devez être inscrit et connecté pour voir ce lien] also competed, but achieved only sixth (equal with one SM.79) and eighth places.
Three of the SM.79CSs were modified to cross the [Vous devez être inscrit et connecté pour voir ce lien] and reach Brazil.
They took off on 24 January 1938 and landed in [Vous devez être inscrit et connecté pour voir ce lien] 11 hours later, then headed for [Vous devez être inscrit et connecté pour voir ce lien] arriving at 2245 local time on 25 January.
One faulty aircraft, however, landed at [Vous devez être inscrit et connecté pour voir ce lien].
The aircraft remained in Brazil and were donated to the [Vous devez être inscrit et connecté pour voir ce lien].[Vous devez être inscrit et connecté pour voir ce lien]
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Re: Savoia-Marchetti SM.79
Operational history
Spanish Civil War
The SM.79 saw action for the first time when serving with the [Vous devez être inscrit et connecté pour voir ce lien], an Italian unit sent to assist [Vous devez être inscrit et connecté pour voir ce lien]'s Nationalist forces during the [Vous devez être inscrit et connecté pour voir ce lien].
The “Sparviero” started its operational service at the end of 1936 when 8° Stormo B.T. (Bombardamento Tattico), with Gruppi XXVII° and XXVIII°, under the command of Tenente Colonnello Riccardo Seidl, was sent to Spain.
Deployed to the Balearic Islands, the unit named “Falchi delle Baleari” (Baleari Hawks) and operated against [Vous devez être inscrit et connecté pour voir ce lien] and the main cities of western Spain, attacking the [Vous devez être inscrit et connecté pour voir ce lien].[Vous devez être inscrit et connecté pour voir ce lien]
Spanish Civil War
The SM.79 saw action for the first time when serving with the [Vous devez être inscrit et connecté pour voir ce lien], an Italian unit sent to assist [Vous devez être inscrit et connecté pour voir ce lien]'s Nationalist forces during the [Vous devez être inscrit et connecté pour voir ce lien].
The “Sparviero” started its operational service at the end of 1936 when 8° Stormo B.T. (Bombardamento Tattico), with Gruppi XXVII° and XXVIII°, under the command of Tenente Colonnello Riccardo Seidl, was sent to Spain.
Deployed to the Balearic Islands, the unit named “Falchi delle Baleari” (Baleari Hawks) and operated against [Vous devez être inscrit et connecté pour voir ce lien] and the main cities of western Spain, attacking the [Vous devez être inscrit et connecté pour voir ce lien].[Vous devez être inscrit et connecté pour voir ce lien]
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Re: Savoia-Marchetti SM.79
During the three years of the civil conflict, over 100 SM.79s served as bombers and only four were lost.
[Vous devez être inscrit et connecté pour voir ce lien] Thanks to the experience gained in [Vous devez être inscrit et connecté pour voir ce lien], the SM.79-II, introduced in October 1939, formed the backbone of the Italian bomber force during World War II.
[Vous devez être inscrit et connecté pour voir ce lien] Thanks to the experience gained in [Vous devez être inscrit et connecté pour voir ce lien], the SM.79-II, introduced in October 1939, formed the backbone of the Italian bomber force during World War II.
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Re: Savoia-Marchetti SM.79
Yugoslavia
Favorable reports of its reliability and performance during the Spanish Civil War led [Vous devez être inscrit et connecté pour voir ce lien] to order 45 aircraft generally similar to the SM.79-I variant in 1938, and these Yugoslavian versions were designated the SM.79K.
They were delivered to Yugoslavia in 1939, but most were destroyed during the [Vous devez être inscrit et connecté pour voir ce lien] in 1941 by their crews or by advancing Italian forces.
Among several actions against German and Italian forces they manage to destroy enemy forces in the [Vous devez être inscrit et connecté pour voir ce lien].
Some of aircraft also escaped to Greece, carrying King Peter Karadjordjevic and his entourage.
A few survived, one to be pressed into service with the pro-Axis forces of the [Vous devez être inscrit et connecté pour voir ce lien], and four which became AX702 - AX705 of the [Vous devez être inscrit et connecté pour voir ce lien].
Favorable reports of its reliability and performance during the Spanish Civil War led [Vous devez être inscrit et connecté pour voir ce lien] to order 45 aircraft generally similar to the SM.79-I variant in 1938, and these Yugoslavian versions were designated the SM.79K.
They were delivered to Yugoslavia in 1939, but most were destroyed during the [Vous devez être inscrit et connecté pour voir ce lien] in 1941 by their crews or by advancing Italian forces.
Among several actions against German and Italian forces they manage to destroy enemy forces in the [Vous devez être inscrit et connecté pour voir ce lien].
Some of aircraft also escaped to Greece, carrying King Peter Karadjordjevic and his entourage.
A few survived, one to be pressed into service with the pro-Axis forces of the [Vous devez être inscrit et connecté pour voir ce lien], and four which became AX702 - AX705 of the [Vous devez être inscrit et connecté pour voir ce lien].
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- Messages : 715
Re: Savoia-Marchetti SM.79
Romania
In 1937, the Bucharest government ordered 24 twin-engined SM.79B bombers fitted with 746 kW/1,000 hp [Vous devez être inscrit et connecté pour voir ce lien] 14K radial engines.
These aircraft, however, proved to be underpowered.
Consequently, in February 1940 Romania ordered from Italy eight machines equipped with two [Vous devez être inscrit et connecté pour voir ce lien] inline engines of 1,200 hp each.
These aircraft were designated JIS 79 (J for Jumo, I for Italy and S for Savoia) and were delivered in 1941-2.
A further 72 SM.79s were built under licence by the [Vous devez être inscrit et connecté pour voir ce lien] (IAR) and designated [Vous devez être inscrit et connecté pour voir ce lien] (J for Jumo, R for Romania, S for Savoia).[Vous devez être inscrit et connecté pour voir ce lien]
[Vous devez être inscrit et connecté pour voir ce lien][Vous devez être inscrit et connecté pour voir ce lien] Another version was the [Vous devez être inscrit et connecté pour voir ce lien], armed with a 20 mm Ikaria cannon and with an enlarged cockpit for a fifth crew member.
Due to its role in low-level attacks, it suffered heavy losses.[Vous devez être inscrit et connecté pour voir ce lien]
In 1937, the Bucharest government ordered 24 twin-engined SM.79B bombers fitted with 746 kW/1,000 hp [Vous devez être inscrit et connecté pour voir ce lien] 14K radial engines.
These aircraft, however, proved to be underpowered.
Consequently, in February 1940 Romania ordered from Italy eight machines equipped with two [Vous devez être inscrit et connecté pour voir ce lien] inline engines of 1,200 hp each.
These aircraft were designated JIS 79 (J for Jumo, I for Italy and S for Savoia) and were delivered in 1941-2.
A further 72 SM.79s were built under licence by the [Vous devez être inscrit et connecté pour voir ce lien] (IAR) and designated [Vous devez être inscrit et connecté pour voir ce lien] (J for Jumo, R for Romania, S for Savoia).[Vous devez être inscrit et connecté pour voir ce lien]
[Vous devez être inscrit et connecté pour voir ce lien][Vous devez être inscrit et connecté pour voir ce lien] Another version was the [Vous devez être inscrit et connecté pour voir ce lien], armed with a 20 mm Ikaria cannon and with an enlarged cockpit for a fifth crew member.
Due to its role in low-level attacks, it suffered heavy losses.[Vous devez être inscrit et connecté pour voir ce lien]
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aeronewsline :: Accueil :: Histoire :: Aéronefs 1920 à 1939
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