Incendiary rounds are still affected by the old HitPower code so they are slightly high-explosive which affects the damage. the fact that some rounds still use HitPower is weird to begin with.
it’s why U.S. .50s incendiary can opaque yellow a wing, and it’s also why a lot of rounds back then were weaker (Partially why Hispanos were ‘hisparkos’)
You can see this effect with Italian Incendiaries as well.
I saw the issue about 50cal Inc TNT equivalency were denied twice.
It was interesting that Gaijin actually gave SAPI round for Hispano a small TNT equivalency, for its SR379 incendiary filling which has similar composition as the US Inc filling. Also the naval M2 gun got TNT equivalency for its M1 Inc.
They also gave US 20x110mm Mark 1 HEI and M97 HEI, as well as the 20x102mm M56 HEI, explosiv filler based on the entire explosive and incendiary filler.
Even though the incendiary filler makes up a huge part of the filler.
Mk 1 HEI has 5.6g Tetry + 5.7g flash powder.
In WT it’s 11.2g Tetryl or something.
Should be identical to Hispano HEI but in WT Hispano only have the 5.6g figure.
M97 HEI has 7.7g Tetryl in WT but it should be 5.5g + 2.2g flash powder.
M56 HEI has like 2g RDX and 8g incendiary composition but in WT it’s 10g RDX.
So of course Gaijin has like always no consistency when it comes to their implementation.
Going off of a basic average (sum of all rpms/number of guns), I got 577.17 rpm (6926/12). Compared to the average rpm of 750 for the .50 cal, there’s a 26% difference in rpm between them.
.50 cals are not doing only 26% less damage than 20mms.
I wouldn’t go that far, I would say the lack of damage is attempted to be compensated by other factors.
We can already tell that the difference in velocity is minimal for most cannons (i.e. does not make up for the poor damage), the number of guns definitely isn’t making up for the lack of damage, and the difference in rate of fire does not make up for the damage. The only positive is that .50 cals have more ammo.
It’s totally not suspicious that they were both denied on the same day with the same copy-paste message - especially the one that quite literally has TNTeq values (\s).
Still, even with the extra guns 20mms are doing massive damage in comparison to .50 cals. The fire rate of the .50 cal isn’t an order of magnitude or two the fire rate of the 20mms.
.50 cals are putting out less mass and do less damage - the fire rate is not making up for that. Neither is the extra ammo. If anything, the ammo is just extra weight that can’t be removed. Unless you’re spraying with no care in the world you’ll never use more than two-thirds of your ammo.
I went through the RAF document and tried to take the row-reduced echelon forms of the various explosives and the figure of merit values, but whatever relationship exists between them isn’t linear.
