I seem to have misread ignore me
Meanwhile Su-33 missing its surface missiles
I thought CHA is like 95% as effective as RHA?
RHA is stronger
cast can have air bubbles and impurites inside of it when its cast that’s why its weaker, rolled if made in a way that most of those are removed before its finished
My guess would be the original AAI projectile is the one with the 2lb penetrator. That being the one with a Mass in Flight of 3.04lbs or 1.38kg. It’s also plausible that the 12.78 Caliber length could be used as a stand in for the Penetrator Length. However, I haven’t ran it through L-O spreadsheet yet to check penetrator mass.
| Property | Calibers | inches | mm |
|---|---|---|---|
| Projectile Length | 15.38 | 12.47 | 316.7 |
| Penetrator Diameter | 1.0 | .811 | 20.6 |
| ~Penetrator Length~ | 12.78 | 10.364 | 263.26 |
| Fin Assembly Diameter | 2.61 | 2.1167 | 53.76 |
| Fin Assembly Length | 2.46 | 1.995 | 50.67 |
| Nose Cone Length | 2.6 | 2.108 | 53.54 |
| Mass Property | lbs. | kg |
|---|---|---|
| Mass in Flight | 3.04 | 1.38 |
| Mass of Penetrator | 2.0 | .907 |
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i think its cuz light tank don’t get ammo box, only AA and tank destroyer get them. But I agree, 26 ammo is not a lot to work with and HSTV-L do need ammo box.
Trying again with some bug reports…
HSTV-L Not ricocheting Turret 81 degree apfsds shots
https://community.gaijin.net/issues/p/warthunder/i/aw8MRtjMFqUV
HSTVL turret basket not part of aiming drive
https://community.gaijin.net/issues/p/warthunder/i/5gvpUcq9jdWx
HSTVL/RDFL Delta 6 is the only round that saw production as M885
https://community.gaijin.net/issues/p/warthunder/i/ipQyZqeqPfOH
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I think they disabled the “bounciness” of thin armor angled at an extreme angles for all tanks.
I’m not really sure the physics behind ricochets so correct me if I’m wrong, but if the armor is extremely thin, wouldn’t the armor give in to the amount of kinetic force from the round?
I believe there’s a threshold for the thickness (not effective thickness) of the armor in which ricochets are allowed but I’m not sure what that threshold is. for example shooting shooting the HSTVL’s frontal armor at 81 degrees will ricochet.
However, shooting the Obj 906’s frontal armor (20mm thick) at 81 degrees will not ricochet
(in both pictures I used the M829A2)
EDIT: NEVER MIND, IGNORE WHAT I SAID EARLIER. shooting Seargent York’s roof at 81 degrees (13mm thickness btw) causes it to ricochet
Yeah I’m not really sure what’s going on. Maybe they disabled it to select tanks that are deemed “problematic” or too bouncy?
No this is same issue with leopard 2s and some other MBTs’ ufp not ricochet as well. Same applies to thicker armour like 80mm + 150mm (ERA) on VT4, so not distinctly a thin armour issue. IDK why but speculations is that it has to be one uniformed plate to be able to ricochet.
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Edited new information found
If they are saying XM885 isn’t the round used in the ADMAG. Then what is used?
Well I’m not entirely the bug report that guy made is correct now.
“A shape of things to come? In the late 1970s/early 19808, AAI Corp. developed a number of light tanks from the experimental HSTV-L testbed in the hope of interesting the US Army and Marines in their procurement for the Rapid Deployment Force. This tank is armed with a revolutionary 75mm Ares XM274 automatic cannon. Tanks like this are being proposed for the Army’s Mobile Protected Gun programme, which aims to field a new light tank in the 1990s.”
Actually I read that statement wrong. The HSTVL and RDFLT both DO indeed use the xm274.
Yk i can live with no he hstvl
Maybe move it down to like 11.0-11.3
The XM884 coming after the hstv-l does make some sense. However the AAI projectile was already developed by early - mid 70s. And the longer AAAC-I and -II projectiles were already prototyped and being tested by 1978. From what I’ve found, the original HIMAG system mounted the 75mm ADMAG. And the HSTV-L was to be fitted with an improved version of the 75mm Ares “Stoner” Anti-armor auto cannon system.
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Found a few more documents stating that both the RDFLT and HSTVL did indeed use the xm274. This bug report is wrong which got accepted with only one source
https://community.gaijin.net/issues/p/warthunder/i/e54m4KghvQBT
(this says the LAV version used DELTA 3 but no mention of DELTA 6 for the hstvl or rdflt)
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Doing some more reading, it seems there were multiple chassis’ one being HIMAG and the other being the HSTVL. There were 3 different versions of HE rounds, one with a mod fuse and the other two that used infrared prox fuses.
HSTVL did have an HE round as shown on the ammo selector
First one is SABT
Second INRT? Like a training round?
Third HE
Looks like it did have a Burst fire mode as well
@Conraire check out the date they were testing DELTA 6 as well
1975 that’s before the HSTVL was even manufactured. The first mockup was in 1979 (according to wikipedia)
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Well if you have found something that questions the bug report I would comment on that report with your information against it.
“Under the MOU, test versions of both the 30-40 ton HIMAG and a lighter 16-20 ton High Survivability Test Vehicle - Lightweight (HSTV-L) would be built; accelerated development of a 75mm automatic cannon and ammunition would be under-taken along with its integration into the HSTV-L; and parallel analysis would be done by the two services to determine experimental employment concepts of the several systems.”
“The concept of the new cannon has now taken form of a high rate of fire, burst or single shot, rotating breech gun, capable of using telescoped (cylindrical) ammunition.”
Proof that the ADMAG was not used on the HSTVL
The HIMAG used the ADMAG and was developed into the XM274 for the HSTVL and RDFLT
I wonder if the Chieftain would ever do an inside the hatch for the HSTV-L would be nice to get a better view of the interior.