109 convergence

[SPKmes]

I have recently (last couple of days) started upping the 109F4 and I have a little question about convergence.....I am trying to find a setting for the mg's and cannons (Not worried about the spud gun model) but the others, I seem to make hits on cons but am only getting them with the MGs, it seems. Do you guys that fly these use different convergence  between them. The other types of planes I have used with MGs and cannons I have always set same convergence (Ki61,205....dare I say...spits)however with the 109's this doesn't seem to work the same.
Personal preference I know, just thought I'd ask here and see what most prefer

[Lusche]

May main advice for the 109F-4 (and the G2) would not be about convergence but about firing: Use your cannon (secondary weapon) only, unless being very close or shooting at buffs (huge targets). Less confusion that way, and your cannon does 90% of the damage anyway.


Apart from this, with the exception of ME 262 and .303 armed planes, I have all guns in all planes set to D350

[Anaxogoras]

I use 400 yards, and always fire the machine guns at the same time as the MG 151/20.

I think you're getting hits with the MG 151/20, but overestimating its hitting power.  Try the 109G-6 or 109G-14 and tell me you're still not getting cannon hits while you score mg hits.  The 12.7mm upgrade makes a big difference.

[Rebel]

With the 109, I always try to get within 100.  Then just blast the ever lovin' hell out of 'em.  Works every time

[Ardy123]

I have my mgs at 400-425 and my 20mm at 450. This way my deflection shots have better chance at hitting their target. The 20mm has lower muzzle velocity and a different drop than the mgs so I would experiment with nonuniform convergence settings.

[Anaxogoras]

Regardless of muzzle velocities, no projectile "drops" before it reaches the convergence point.  You all do realize how small of a difference there is in muzzle velocities here over short distances, right?

7.7mm ~855m/s
20mm ~755m/s

R*T=D
so
Time = Distance/Rate, or Distance/855m/s and Distance/755m/s:

Let's say you fire at a target that is 350m away.  The 7.7mm projectile will get there in ~.41 seconds.  The 20mm projectile will get there in ~.46 seconds, for a difference of 5 hundredths of a second.  What's more, that difference only matters for the first projectiles that leave the guns; .05 seconds after the first 7.7mm projectile reaches 350m, they are arriving in a combined stream.

That math just doesn't justify setting different convergences or firing the weapons independently.

[Ardy123]

That may be true but in terms of the game having a 25feet difference in convergence has made a difference for me at least.

[Anaxogoras]

That may be true but in terms of the game having a 25feet difference in convergence has made a difference for me at least.

It's in yards.

[Lusche]

Real world data:

shooting with barrel level:

a 7,9mm Panzergeschoss round will take 0,654 seconds to reach 400m and drop 1.8m
a 20mm MG 151 M-Geschoss round will take 0,712 seconds to reach 400m and drop 2.05m

so the difference in time is 0.058s and in drop is less than 1 foot.

[Anaxogoras]

Would that mean the 20mm has to arc .25m higher to reach the same convergence point at 400m?

[Lusche]

Basically yes, it has to aim for a point that much higher

[jdbecks]

I have both MG's and cannon set for 300, the german balistics take awhile to get use to...most of my targets I cant see when I kill them,

[Scotch]

I have mine both set at 300 but will use the mg's out to ~800 to keep my opponent on his toes.