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#79436
John D Salt
Participant

I have amused myself further by adding compound angle calculations to my Kleeblatter spreadsheet, so armour can be characterised by both the thickness and the slope of front, side, and rear plates.

Although it’s not Les’ chosen early war period, I decided to compare the angular distribtion of protection offered by the Tiger and Panther hulls. We all know that the Panther is better protected at the front, and the Tiger at the sides and rear. But look at this:

Assumptions:

Armour plate as follows

AFV	Plate	Thick	Angle
Panther	Front	80	55
Panther	Side	40	40
Panther	Rear	40	30
Tiger	Front	100	9
Tiger	Side	80	0
Tiger	Rear	80	9

Exponent for slope calculations 1.33
(makes 60 degrees about 2.5 times as good as normal)

Theta: Angle of obliquity, degrees
Panther: Equivalent armour protection offered by Panther A hull
Tiger: Equivalent armour protection offered by Tiger E hull
Better: Which offers more protection

Theta	Panther	Tiger	Better
=============================
0	168	102	Panther
5	168	102	Panther
10	171	104	Panther
15	175	106	Panther
20	182	110	Panther
25	179	116	Panther
30	143	123	Panther
35	119	133	Tiger
40	103	144	Tiger
45	90	127	Tiger
50	81	114	Tiger
55	74	104	Tiger
60	69	97	Tiger
65	65	91	Tiger
70	62	87	Tiger
75	60	84	Tiger
80	58	82	Tiger
85	57	80	Tiger
90	57	80	Tiger
95	57	80	Tiger
100	58	82	Tiger
105	60	84	Tiger
110	62	87	Tiger
115	65	91	Tiger
120	69	97	Tiger
125	74	104	Tiger
130	81	114	Tiger
135	77	127	Tiger
140	69	116	Tiger
145	63	106	Tiger
150	59	98	Tiger
155	55	93	Tiger
160	53	88	Tiger
165	51	85	Tiger
170	49	83	Tiger
175	49	82	Tiger
180	48	81	Tiger

The Panther is only a better bet over a rather narrow frontal arc of 60 degrees (30 degrees each side of dead ahead). If you’ve got guns capable of punching about 100mm of armour (as the 6-pounder, US 76mm and Soviet 85mm could do at useful battlefield ranges) there are more angles where the Tiger is a problem than the Panther.

All the best,

John.