Turret Traverse Speeds

[swaghauler]

My players are considering the "appropriation" of a T-55M that they have learned the location of in their last session. I have a session or two of breathing room but need some more stats to "flesh out" the tank and it's future adversaries (of which I cannot speak because one of my players reads this forum).

I already have certain information I consider important collected such as min/max gun elevation/depression, step, fording, and ditch crossing specs. One specification I don't have accurate information on is Traverse/Elevation Speed of the tank in question. As I use a 1/2 Second Phase (1 to 12 phases in a 6 second round) Initiative system; The speed that a tank can traverse through In Degrees in a second is an important stat I need. I have looked at several sources both online and in print but would like the experts on armor in the forum to double check what I have discovered.

T-54/T-55; The military identification website forum had several members tell me that the traverse was about 45 Degrees per second on this tank. It had a standard manual backup.

T-64,T-72 & T-80; a YouTube video on the T-72 said these tanks had an improved turret ring which increased traverse speed by up to 12%. I therefore set their traverse speed at 50 Degrees per second. They have standard manual backups

T-90 & T-90M; A Youtube video "explaining" why the T-90M will win a fight with the M1 Abrams claimed that the T-90M had a new electric turret drive that allowed 360 degree traverse in just 6 seconds. It also said that this is 15% faster than the T-90. This would give the T-90M a 60 Degrees per second traverse (and the T-90 a 51 Degree per second traverse). I gave the T-90 a 50 Degree per second traverse. Standard manual backups are present.

M60; I was given a 50 Degree per second Traverse rate for the M60 in the Military ID forum. I know there is a manual backup but I'm not sure if it is variable speed.

M1 Series; The only information I could find on the M1 was in the fire control text of Modern Land Combat. It stated that the M1 and the Challenger both had a 70 Degree per second traverse speed with manual backup.

Challenger; I gave it a 70 Degrees per second traverse speed with manual backup. See above for why.

Manual Traverse; Most manual traverse (with hydraulic assist) is capable of 1 Degree (10 mils) of traverse per second with an average user.
I have decided to set the speed of Manual Traverse at [Average of STR & AGL] in Degrees per COMBAT ROUND. This system is common on towed artillery and on the Chinese Type 59 Main Battle Tank.

Enhanced Manual Traverse; This traverse has a two speed wheel system with a coarse "high speed" crank setting to get you rapidly near your intended target and a more precise "low speed" crank setting for getting a precise "fix" on the target. I allow a speed of Traverse at [STR+AGL] in Degrees per COMBAT ROUND. This form of traverse is found on the British Light Gun (and the newer M777 155mm's), and several Russian AA and Field Guns.

While most AA platforms have well documented traverse and elevation speeds in their descriptions; I have been unable to find the traversing speeds for most AFVs that appear in Twilight2000. I haven't even been able confirm these traverse speeds from at least two different sources and was not able to find any info on the other tanks in game. I would appreciate any input from the tankers in the forum.