We did some calculations for the total vehicle mass, which for now are just approximations, since there are no public sources that list the actual weight of this prototype. However, I believe that the figures we have of its components are sufficient to get a rough idea of where it’d end up at.
35300 kg (PT 04 hull mass) [S1]
+ 17000 kg (T 19 turret mass) [S2]
+ 300 kg (extra weight of 140mm gun compared to 120mm L/44) [S3-1]
- 800 kg (120mm ammunition mass; 40 * 20kg) [S3-2]
+ 1216 kg (140mm ammunition mass; 32 * 38kg) [S3-3]
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> 53116 kg total mass (calculated with known figures)
The modifications made to T 19´s turret-bustle, i.e.:
turret extension & automatic loading system likely increased the weight further.
Thus, my approximate total weight for this prototype would be;
53700 kg
References for listed figures:
[S1] Armies & Weapons Nr 23 (April 1976) p63 & Soldat Und Technik 03/1974 p132
Show excerpt from Sources
Armies & Waepons Nr 23 (April 1976) p63
Soldat Und Technik 03/1974 p132
50.5t total - 15.2t (turret mass) = 35.3t Hull Mass
[S2] Leopard 2 - Sein Werden und Seine Leistung (Paul Werner Krapke) p34
Show excerpt from Source
Note & Acknowledgement:
I am aware that the turret mass was higher, infact, a 1975 Bundeswehr document describes that the weight of both 2AV versions (EMES13A1 and EMES15 FCS) must be reduced.In said document, the prototypes with EMES15 (which T 19 uses) are listed with a turret-mass of 17400kg, however, it is also noted that these values (along with those of the chassis) must be decreased.
Whether this actually happened, I do not know. And as such, I will take the 17 000kg figure, which is described as the upper limit for the turret mass, instead.
In any case, the maximum total possible weight of this prototype would at max be 400kg higher.
[S3] KPz Heute und Morgen Konzepte - Systeme - Technologien (Rolf Hilmes)
Show excerpts from Source
[S3-1]
[S3-2] and [S3-3]
Feel free to correct me and/or suggest other values that I may have not considered here.