cannot reproduce Range of MBT weapons

[Richrach]

Building a mission on the Syrian map.  M-60 tanks have a range ring in excess of 4NM and are engaging at that range with moving targets.  T-55 has a range around 1.3NM.  Chieftain MBT had a range of about 1.87NM.

 

The later two are reasonable.  Clearly, the M-60 105MM gun does not have a range like this.

Edited March 28, 2024 by Richrach
Wrong name

[Flappie]

Do you have sources?

Tracks?

[Northstar98]

On 3/28/2024 at 4:25 PM, Flappie said:

Do you have sources?

Tracks?

According to this, the M60A3's laser rangefinder has a maximum range of 5000 m (about 2.7 nautical miles).

According to this document (approved for public release - see page 3 of the reader for the distribution statement) mentions a maximum effective range of 3000-4000 m for the primary armament, 1200-1800 m for the commander’s .50 cal MG and 900 m for the coaxial MG. (See the tables on 18-20 of the reader).

For the T-55, tankograd has an article with an image of the sight (TSh2B-32P), the maximum range is 6000 m (~3.23 nmi) for HEF (ОФ) ammunition, 4000 m for AP (БР, ПОДК) ammunition, 3000 m for HEAT (БК) and 2200 m for the coaxial MG (ГТ). Note that the stadiametric rangefinder only goes out to 2800 m, for a target 2.7 m tall.

For the Chieftain, first note that despite what it's called in-game, it most definitely isn't a Mk 3. If ED intended it to be based on the Mk 3, then given that we appear to have a tank that's completed Totem Pole and Sundance upgrades, that would make it a Mk 7/L.

Spoiler

• It has the newer NBC pack (No. 6 Mark 1) from the Mk 3/3 onwards. The Mk 3 would have the older style pack, which looks quite a bit different.
• It has a muzzle reference sensor (MRS), which IRL coincided with the addition of the improved fire-control system (IFCS) and the new L11A5 gun. Mk 3 lacks the MRS and uses L11A3.
• Unlike the Mk 3, it has the ranging gun deleted, which AFAIK coincides with Tank Laser Sight (TLS). The tank additionally is defined with a laser rangefinder (so either LF2 or TLS).
• It has access to APFSDS ammuntion from the Mk 5/4 onwards.
• It has an engine which (at least according to the in-game encyclopedia) has 760 hp. The Mk 3 started off with a 650 hp engine, the Mk 3/3 with 720 hp. After the Sundance modification with the Leyland L60 Mark 11A/12A, they had 750 hp (retrofitted to other tanks).

That aside, this quotes 10,000 m (~5.4 nmi) range for the Chieftain's laser rangefinder, which is backed up by a Marconi pamphlet on IFCS (though not sure if that's rule 1.16 compliant as it doesn't have a distribution statement). What the maximum effective range is I don't know, though is likely a lot less. The real thing's sight has markings for up to 3200 m (note that the sight used in game appears pre IFCS and has RMG markings despite the tank not having ranging machine gun).

Edited March 30, 2024 by Northstar98
grammar, small amendments

[Flappie]

Thank you, @Northstar98.

@Richrach I'll need a track because I cannot reproduce your issue. The M60 is unable to fire at a unit from a distance of 2.2 nm (4 km).

M60 2.2nm.trk

[Richrach]

Flappie, it might be my system.  I have not been able to reproduce the problem for a few days.  I did have M-60's engaging and hitting targets as far as 4.138 Nautical Miles, not kilometers.  Now, I will admit to personally having hit a tank at 4.5 NM with a 105mm... howitzer, but that was well within a howitzer's range.  Oh, the good ol' days...

 

I am working on a new mission in the same region that will use the M-60.  If the problem comes up again I will bring it here, otherwise I will mark your last as the solution.

 

THANK YOU for the support!

Edited April 3, 2024 by Richrach
Grammar

[Flappie]

You're welcome.

[Richrach]

Flappie, this has not come up again in my missions.  Must be a glitch in my system so I marked it solved.  ???