Getting sources on the Pattons and their transmissions is weirdly difficult.
I tried making a bug report on the M47 using TM 9-718A which provided the top speeds for the gears of the tank, but as you know you provided a source (“Standard Military Vehicle Characteristics Data Sheets”, 1963) that showed gear ratios and a top speed that completely contradicted the top speeds provided in the technical manual. Until I obtain better sources it’s unlikely that I will do a bug report on those tanks.
Documentation
TM 9-718A from 1952 provides a 12 mph (19.31 km/h) top speed for both the reverse and 1st gear/low range and 30 mph (48.28 km/h) for the 2nd gear/high range.
Meanwhile the document you provided in my bug report for the M47 states completely different top speed of 37 mph (59.55 km/h). On top of that the low range and reverse gear ratios are completely different so it’s impossible for them both to have a top speed of 12 mph.
With those gear ratios and top speed, low range would have a top speed of 12.81 mph (20.61 km/h) while reverse top speed would be 9.35 mph (15.05 km/h).
It seems generally that sources on the CD-850 transmissions end up contradicting themselves on top speeds, gear ratios, etc. It’s all extremely confusing.
Not much I can do without understanding the issue further.
It was originally 4.3 km when implemented, then nerfed to 4 km, buffed back to 4.3 km, and nerfed again to 4 km without any notice. Now, it’s been buffed back to 4.3 km…LoL 🤣
Please don’t forget the Bretagne report; it is a very heavy handicap to play it because his salvo aiming 10 to 15° degree left.
And after a bit of looking at datamines, what has happened is that Gaijin has used the gear ratios in the source “Standard Military Vehicle Characteristics Data Sheets”.
However, they only used the specific gear ratios from that source. That source includes many other changes that went entirely ignored such as:
It states the M47’s (and consequently the M46’s) top speed is 37 MPH (59.5 km/h, in game it is 48 km/h, and this is shown in the screenshot I posted at the end, right at the bottom);
It states the M47’s weight is 97,200 lbs (44 tonnes, in game it is 46.2);
It states the M41 maximum turret traverse rate is 36 degrees/s (in game it is 24 degrees/s, in fact I quite literally used this source for such a bug report and it got ignored);
It states the M60A1’s weight is 105,000 lbs (47.6 tonnes, in game it is 48).
And those are just some of the changes I’ve bothered to look for.
Gaijin is pick and choosing not only the sources they want to use, but also the information that is provided in those sources. A sad display.
Images
Here are the transmission details on the M47’s page from “Standard Military Vehicle Characteristics Data Sheets”. Note the “overall usable ratio” section right at the top.
Here are the datamined gear ratios, with matching gear ratios denoted in red (tanks with torque converters get additional gear ratios to emulate the torque converters).
I will say, the M60 tanks are still using different gear ratios from what is stated in this source, so I suppose this only applies specifically to the official Patton series, not the M60s (and any tank that uses the same power unit).
none of those missiles are discussed in the link i sent.
I don’t know if those missiles are rotating in flight or not so i don’t know if the math will apply
