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Forums - Research / WW2 |
This WW2 forum is intended for asking and discussing reference or historical related issues pertaining to WW2 (1939-1945) subjects. |
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| Subject: | Re: What distinguishes M4, M4A2, M4A3, and M4a4? |  |
| Date: | Nov 15, 2003 |
| From: | Paul Roberts | |
Paul wrote:
> I can easily recognize an M4A1 by apprearance because of its round front hull, but what are the distinguishing features between the M4, M4A2, M4A3 and M4A4? Thanks in advance!
>
The fundamental difference is the engine and thus the engine decking.
The M4 uses the same engine as the M4A1 and has a rectangular armoured
intake cover just under the rear bustle of the turret.
The M4A2 used a twinned diesel and has a relatively small air intake
grill that is not the full width of the main section of the engine deck.
The M4A3 used the Ford GAA engine and has an engine intake that is the
full with of the main deck section.
The M4A4 uses the Chrysler Multibank that is a combination of 5 engines
on one crank! Because of this the hull is actually longer and shows this
with a larger spacing of the suspension units. In addition the radiator
cover extends above the main engine deck with a humped plate and filler
cap in the centre.
And for the sake of completeness...
The M4A5 was the US designation for the Canadian Ram (Q.V.).
The M4A6 used a Caterpillar D200 engine in a late M4A4 hull. The bogy
spacing was the same, but there was a differently shaped hump in the
forward centre of the engine deck. Few were made and none were shipped
overseas.
HTH
Paul
--
Paul Roberts
Scale Tech Distributing
Accuracy is our measure of Quality
http://members.rogers.com/tankmodeler/ |
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 | What distinguishes M4, M4A2, M4A3, and M4a4? - Paul - Nov 15, 2003 |
| . . . Re: What distinguishes M4, M4A2, M4A3, and M4a4? - Paul Roberts - Nov 15, 2003 |
| . . . Hmmm... a brief yet concise attempt - roy chow - Nov 15, 2003 |
| . . . . . . Roy You have it bad don't you? - Jeff Larkin - Nov 16, 2003 |
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