47/32 elefantino vs Matilda/Valentine

Se ti riferisci alla foto postata nel thread sul "mito" del Panther è vero che si tratta di proiettili ad alto esplosivo ma non da 122mm (e neppure sovietici). Gli unici test famosi (oggetto di diverse diatribe) 122mm vs Panther di cui sono a conoscenza sono stati eseguiti con proiettili perforanti (si è spesso dibattuto se fossero mai stati utilizzati anche proiettili BR-471B con cappuccio balistico e punta del penetratore tronca o solo normali BR-471).

 

.. Se intendi l'88/56 mod.18 è degli anni 30, il Long Tom M1 pure,comunque la differenza principale con armi simili della WW1 è la mobilità molto superiore , penso che il principale difetto delle nostre artiglierie ex WW1 era propio la mobilità perchè gli adattamenti al traino meccanico non erano ottimali e nel principale teatro operativo italiano , il Nord Africa, contava molto.

 

vero, vero, la discussione era poi proseguita altrove in altre forme

 

Qualche dato aggiuntivo che conferma impressioni e bocciature, da "Italian medium tanks 1939-1945" di Cappellano e Battistelli

In spite of their deficiencies, both the M 13/40 and the M 14/41 (e quindi il 47/32) were still a match for the British Cruiser tanks and the US-built light M 3 ‘Honey’ during 1941 , though largely inferior to the British infantry tanks. The standard 47/32 gun used on both models was still effective, with a rate of fire of 20 rounds per minute, a muzzle velocity of 630 metres per second, a range of 700 metres and its 1.44kg shell capable of penetrating 43mm of armour at 500 metres, making it a good match for the British Cruiser III, IV and early VI tanks. However, the EP shell (hollow charge) introduced in late 1941 proved ineffective and was eventually withdrawn from use. Combined with the fact that the new 47/40 gun was only mounted on the M 15/42 tank, this made Italian tanks’ gunnery almost useless in 1942, particularly against the US-built Grant and Sherman tanks and the British Valentine tanks.

​

Al contrario, i semoventi da 75/18 si dimostrarono molto efficaci, e le EP migliorarono ancora le prestazioni del cannone, infatti

The semoventi, although based on the medium tank chassis, proved a suitable solution, with their low silhouette, thicker frontal armour plates and more powerful guns. The 75/18 gun had a reduced rate of fire, only ten rounds per minute, and a low muzzle velocity of only 425 metres per second, but this made it perfectly suitable for hollow charge rounds like the 5.2kg EP, which enabled it to penetrate 70mm armour at 500 metres (the characteristics of the 75/34 gun were similar).

​

Impressionanti i dati di altri pezzi

The 90/53 gun had an impressive rate of 12 rounds per minute, a muzzle velocity of 758 metres per second and a range of 2,000 metres, which enabled its 12.1kg armour-piercing shell to penetrate 140mm armour at 500 metres and 120mm at 1,000m. The 105/25 gun also had a muzzle velocity of 512 metres per second, a range of 1,200 metres and its 14kg hollow charge shell could penetrate 100mm armour at 500 metres (the 75/46 could penetrate 90mm at the same range).
​