Vert/horizon convergence still reversed?

[pstyle]

Originally Posted by Troll2k

Vertical"convergence" seems a misnomer as there is only 1 gun in the vertical plane and therefore nothing to converge.(I guess some planes had guns in both the horizontal and vertical planes).I would call the vertical "convergence" more of a "droop".

I guess the 109 nose cannon does not have a horizontal convergence(as it is only 1 gun) but does have a vertical droop.

indeed, I'm not entirely sure how relevant vertical convergence is for wing-firing MGs/ Cannon. Afterall, they're only displaced vertically by a few inches from each other, even assuming some wing loading/ warping.

The furthest MGs on the spit are around 18 feet (i don't know the exact distance) apart (that's 6 or 7 metres), so the forward firing cone is quite narrow. Perhaps the worst thing one can do, is set the convergence TOO close to the aircraft, which would result in very large spread at range.

[robtek]

Of course the vertical convergence is relevant for all guns, wing or fuselage mounted.

One needs it to adjust the point where the ballistic arc of the bullet and the sight-line intersect.

[pstyle]

Originally Posted by robtek

One needs it to adjust the point where the ballistic arc of the bullet and the sight-line intersect.

ah, ok.. of course. I'd overlooked that.

[Varrattu]

Referring the aircraft.ini, iL2CoD-v1.05.15950, the standard convergence for all BF109E is defined as follows:

nose mounted MG 2x Rheinmetall-Borsig MG 17 (7.92mm)
vertical convergence == 400 m (Visierschuss)
horizontal convergence == 420 m (Kreuzung)

wing mounted MG 2x Rheinmetall-Borsig MG 17 (7.92mm)
vertical convergence == 500 m (Visierschuss)
horizontal convergence == 300 m (Kreuzung)

wing mounted MG 2x Oerlikon/Ikaria MG FF (20mm)
vertical convergence == 500 m (Visierschuss)
horizontal convergence == 300 m (Kreuzung)

wing mounted MG 2x Oerlikon/Ikaria MG FF/M (20mm)
vertical convergence == 500 m (Visierschuss)
horizontal convergence == 300 m (Kreuzung)

There is a good reason why vertical standard convergence is 500 m (Visierschuss). The German iL2CoD munition types have been animated in a version "verbessert" (improved). The cartridges are of high-velocity type for maximum performance in aircraft machine guns and give higher pressure than other 7,9 mm rounds.

~S~ Varrattu

Edit 18.06.2012: false link deleted

[Varrattu]

... and here are the standard convergences for all iL2CoD Spitfires and Hurricanes, taken from aircraft.ini, iL2CoD-v1.05.15950:

vertical convergence == 370 yards
horizontal convergence == 370 yards

~S~

Varrattu

[Varrattu]

The German iL2CoD 7,9mm cartridges have been animated in a version "verbessert" (improved):

Cartridge, 7.92x57, S.m.K. - Spitzgeschoss mit Kern
(iL2CoD weapons.ini - v1.05.15950)
MuzzleVelocity 865 ms

Cartridge, 7.92x57, S.m.K.H. - Spitzgeschoss mit Kern, Hart
(iL2CoD weapons.ini - v1.05.15950)
BasedOn Mauser7.92x57_S.m.K.
MuzzleVelocity 868 ms

Cartridge, 7.92x57, S.m.K. L'spur (gelb) - Spitzgeschoss mit Kern, Leuchtspur (gelb)
(iL2CoD weapons.ini - v1.05.15950)
BasedOn Mauser7.92x57_S.m.K.
MuzzleVelocity 905 ms

Cartridge, 7.92x57, S.m.K. L'spur (weiss) - Spitzgeschoss mit Kern, Leuchtspur (weiss)
(iL2CoD weapons.ini - v1.05.15950)
BasedOn Mauser7.92x57_S.m.K._L'spur(gelb)

Cartridge, 7.92x57, S.m.K. Ub.m.Zerl. - Spitzgeschoss mit Kern Ubungsmunition mit Zerleger
(iL2CoD weapons.ini - v1.05.15950)
BasedOn Mauser7.92x57_S.m.K.
Payload Concussion 0.5 g of Amatol

Cartridge, 7.92x57, P.m.K. - Phosphor mit Stahlkern
(iL2CoD weapons.ini - v1.05.15950)
BasedOn Mauser7.92x57_S.m.K.
Payload Thermal 0.5 g of Amatol
MuzzleVelocity 905 ms

Cartridge, 7.92x57, B. - Beobachtung
(iL2CoD weapons.ini - v1.05.15950)
BasedOn Mauser7.92x57_S.m.K.
Payload Thermal 0.5 g of Amatol
MuzzleVelocity 855 ms



Please have a look:

[AbortedMan]

That's great info, very interesting, but I hope no one takes these values and tries to translate the numbers to in game. With all the Tom Foolery going on with the inaccurate flight models, I'd be extremely surprised to find out that ammunition was correctly modeled in such a fashion as listed above.