
Old Sweat said:Joe Ekins was not in the best position. He was the gunner in the only British Sherman Firefly covering that approach.
Dennis Ruhl said:Note that the 17 pounder equipped Fireflies were the only Shermans that could reliably penetrate Tiger armour.
Armour
The Tiger I's armour reached up to 120 mm on the mantlet. This tank is assigned to the Schwere SS-Panzer-Abteilung 101 operating in northern France in 1944.
The Tiger I had frontal hull armour 100 mm (3.9 in) thick and frontal turret armour of 120 mm (4.7 in), as opposed to the 80 mm (3.1 in) frontal hull and 50 mm (2 in) frontal turret armour of contemporary models of the Panzer IV.[4][6] It also had 60 mm (2.4 in) thick hull side plates and 80 mm armour on the side superstructure and rear, turret sides and rear was 80 mm. The top and bottom armour was 25 mm (1 in) thick; from March 1944 the turret roof was thickened to 40 mm (1.6 in).[3] Armour plates were mostly flat, with interlocking construction. The armour joints were of high quality, being stepped and welded rather than riveted.
The nominal armour thickness of the Tiger was reaching up to 200 mm at the mantlet.[7]
Michael O'Leary said:When talking about penetration of tank armour, you need to be specific about which armour and from what angle of attack.
Dennis Ruhl said:Absolutely, but the net effect of engaging any Tiger with a stubby gunned Sherman was often less than positive. Get your geometry off a degree or two and there's one ticked off enemy with ringing ears looking for you.
Old Sweat said:Joe Ekins was not in the best position. He was the gunner in the only British Sherman Firefly covering that approach. On the other hand there were 8-12 Canadian Shermans hidded behind a stonewall covering the same approach from the opposite side of it. Wittmann's Tiger drove in front of them from right to left at less than 200 metres range. What is also important to me is that the damage to his tank was on the left rear of the engine cover, an area which was masked to the British.
Technoviking said:And there were only enough Fireflies (the Sherman with 17 pdr) for perhaps 1/troop.
This taken from Mark Hayward's 'The Sherman Firefly'
Quote:
"The Firefly was not a universal remedy. The 17-pdr's HE performance was limited and at longer ranges its accuracy with the more effective sabot ammunition left a lot to be desired. Trials conducted in mid-1944 state that the useful range of APC ammunition was 900 yards (822 metres) while that of APDS was only 450 yards (411 metres). The files show that, while at 400 yards (365 metres) APC could be expected to hit a standard size target some 90.5 per cent of the time, APDS only achieved the same performance 56.6 per cent of the time. At 1,500 yards (1,371 metres), the comparative figures were 25.4 per cent and 7.1 per cent. It seems that ammunition quality improved over time, but the accuracy of the 75mm M3 gun was still admired and in demand up until the end of the war."
Those range comparisons in full..
400 yds APC hit 90.5% APDS hit 56.6%
600 yds APC hit 73.0% APDS hit 34.2%
800 yds APC hit 57.3% APDS hit 21.9%
1000 yds APC hit 45.3% APDS hit 14.9%
1500 yds APC hit 25.4% APDS hit 7.1%
There is some more about accuracy in Mark Hayward's 'The Sherman Firefly' who is in turn quoting from two wartime documents, WO 291/1263 and WO 165/135 recorded on 22nd September 1944. Further to this he quotes from a conversation with Sgt. Jack Moat DCM (1st RTR, 7th Armd. Div. 1940-45) on 2nd November 2000 as published in 'Tank, the journal of the Royal Tank Regiment'.
Quote:
"These trials were conducted with two tanks - a IC (T263317) and a VC (T148506). The report does state that these figures might be sympathetic "... a maximum range of engagement at which every second round will hit appears under these conditions to be a generous one". It was noted (referring to targets such as hull down tanks) that using APDS "... there is no use in attempting to pin-point vital zones in targets at ranges over about 200-300 yards". This is not a range anyone would want to be in a Sherman against any late-war German tank. "APC shot does not possess sufficient accuracy for pin-point shooting at vital zones in targets at ranges over about 300 yards". The report did not consider the tests with APC as typical and that "... the accuracy of fire with APC can be better than that obtained in this and the preceding trial". "The first batch of 17-pdr appear not only to be innaccurate, but also have a dissapointing performance". Contrary to this and other reports, Sergeant Moat regarded the 17-pdr as very accurate and did not agree with the accuracy problems. He conceded that the HE round was not as good as the 75mm M3. The 17-pdr never let him down and always did what he asked of it. He thought the Firefly was the best tank he saw service in and the 17-pdr a reliable high performance weapon, especially compared to the inadequate tanks he put up with in earlier campaigns."