109K-4 Convergence

[Ardy123]

I used to put the convergence at 250. My aim sucks, always has, so I never went for shots past 250 anyway.

[bustr]

It's probably a latency issue online but, in offline mode after about 5 minutes of shooting single taps with the MK108 I reach the point that I can pretty much hit the drones from any angle 75% at 400yds and 85% 200 and closer. Dosen't hurt that from all the testing I've done I have an idea where the round should be going and modified a gunsight to reflect that. Has a bit to do with those dispersion tests at different ranges anyone can perform. If you test offline against the target 50-400 yards, you will notice all of your shots pretty much pattern from gunsight center down to the first 10Mil below center depending on the range. But, dispersion is ruining what looks like an almost flat shooting round.

Bf109-K4 MK108 tested at 150 convergence.

Range(yd)...Drop(ft)...Dipsersion(H x W)
50..............(-8in)......(10in x 5in)
100............(-7in)......(6ft x 4.5ft)
150.............(0in)......(6.25ft x 6.25ft)
200.............(0in)......(14.5ft x 11.6ft)
300............(-22in).....(23ft x 13.75ft)
400............(-5.8ft)....(30ft x 17.5ft)

As soon as I'm online and in the same firing positions and gunsight lineups, instead of a single MK108 tap, I have to use a trigger burst of 3-6 rounds. The MK108 rounds just don't seem to act online like they do offline. And dead 6 shots from 200 and closer the rounds on full zoom look like they are all sliding along the surfaces of the con. Even the Yak9T rounds look like that.

In my research on the MK108, almost every source pointed out the MK108 was lousy choice of auto cannon for fighter to fighter high speed combat. It was emphasised that it was for shooting large slow moving bombers becasue of it's slow velocity and awfull ballistics.

An 18ft dispersion at 200 meters with a 3ft drop and a 30ft dispersion at 400 meters with a 12ft drop. Meters are shorter than yards. Your best combat range if you have to shoot at fighters is 100 yards. At 100 meters it has a 7ft dispersion with an 8inch drop. That testing table from the game shows those two (0) becasue you get to tilt the barrel up for vertical convergence settings. But, the Dispersion column negates the seemingly lazer qualites you see in the Drop column. I'd still like to see all negative numbers in the Drop column.

I could be smoking some funny stuff here or cannot read my own chicken scratch hand writing but, I found some of my ballistics testing notes from about 2 years ago from offline with the K4. The dispersion grid patterning numbers are smaller than the numbers I posted in this thread which I pulled in the last 2 days that reflect the Rheinmetall-Borsig test data. You guys should ask for the G10 back with the 20mm in the nose.

Back then I could sit behind a B25 offline and one shot at a time perform accurate dismanteling tests of different airframe structures to understand the damage model. Now days the MK108 rounds seem to euphimistcly disperse randomly all over the place requiring bursts instead of single taps. The Yak9T is better for the single shot damage tests these days due to having a similar ballistic profile to a 20mm out to 400.

Must be the low tide fumes off Lake Meritt affecting my cognitive abilities or my cats rewrote my notes from a few years ago. I'm just imaging all of this.

[jeffn]

400 is the sweet spot.

But even if the con is at 500 to 600 yards i still aim for the top of the vertical stabilizer. 3 tater burst: dead
Works for me anyway.

<S>

[ScottyK]

 from the F-K4 i have my convergence at 375 for mgs 425 for cannon.

[titanic3]

Got mine to 300, I tried every setting and 300 seems the best.

[BaldEagl]

Mine are 650 like about half the guns in AH.  Doesn't hurt my aim at all because it's what I'm used to.

[SWkiljoy]

Mine are 650 like about half the guns in AH. 

[BaldEagl]

Yep.  The only guns I set lower than 650 are .303's, 7.9mm's, MGFF's and all Russian and Japanese cannons which I set at 400.  I also set Hispanos to 400 if they are in a mixed set with .303's.  Otherwise I set everything to 650 even though I normally open fire at 400.  I like to be able to reach out when I need to.  I usually maintan about a 10-12% hit rate with those settings.

I don't seem to have any issues hitting with the tater at those settings either.  I got used to flying the 190-A8 with the 30mm gun package set at 650 and kept it the same on the K4.

Not saying it's best for everyone but it works for me.

[morfiend]

 Bustr,

  you said meters are smaller than yards and this isnt true,a yard is 36 inches where a meter is 39 inches and abit! a 1000 meters are roughly 1100 yards.


  But you knew that and just wrote it backwards didnt you!




   

[-pjk--]

200 in 109K4

[Nathan60]

I used to put the convergence at 250. My aim sucks, always has, so I never went for shots past 250 anyway.

So how long of a break you gonna take Ardy? Don't you  miss  shooting me down in under 12 seconds? Not that I fly the 109 much or  anywhere near competently but I usually have my conv at 250 aswell, since my aim is horrible same same

[Nathan60]

Bustr,

  you said meters are smaller than yards and this isnt true,a yard is 36 inches where a meter is 39 inches and abit! a 1000 meters are roughly 1100 yards.


  But you knew that and just wrote it backwards didnt you!

Oh this is going to elicit a lengthy post methinks.

[Ruah]

well, like it has been stated, convergence with the tater is not really important because when you pull the trigger your target will be a very large object moving into your bullets (profile shots) - although the occasional long range deflection shot from 600 out with one round (just to keep them honest) is like winning the lottery and feels great. . .but ultimatly is not the norm.

Point is, you have to change the way you set up shots completely with the tater and make the changes to how you imagine the end of the fight.  Which is one of the really fun things about the K4 - that you force a certain outcome on the opponent.  To be honest though, the 20mm is more accurate.

[JunkyII]

I've always understood convergence with single nose mounted guns only really matters with the trajectory of the bullet itself....which can effect how you line up a plane for all types of shots.

At 200 I can aim at the bottom of the plane dead six and still hit with the mk19 because that is the rounds flight path to 225. Is this correct thinking?

[bustr]

Bustr,

  you said meters are smaller than yards and this isnt true,a yard is 36 inches where a meter is 39 inches and abit! a 1000 meters are roughly 1100 yards.


  But you knew that and just wrote it backwards didnt you!




   

For some reason I've always flipped it. I've never been able to pronounce tickled pink. It comes out pickled tink but, in my head it reads tickled pink. Most conversion sources give you:

1 meter = 1.0936133 yards. <---for some reason it just looks longer when I'm in a hurry.

Instead of:

A yard=91.44cm <---a precise common value differentiation.
A Meter=100cm  <---

The USA is not on the metric system and I've never had to buy remodeling material in running meters. Just feet and yards which my tape is well endowed to calculate. I keep forgetting to find yard and meter equivalency to centimeters before I calculate from german handbooks. Since my calculator will convert inches/feet/yards to centimeter/meter for me to plug in for D and S in metric angular mil calcs. I still don't worry about it that much. The calculator is pretty good about doing the heavy lifting.

Thank god I use a (gr) scale to relode with and a (gm) scale to weight rough for cutting then to weight the finished product in (ct) not (KT). Just never used meters much for anything until very recent. I'll just have to start yelling into the other room at Marcey asking her which is longer in her experience..........I'll probably get back, don't know honey never dated anyone from europe. You asking me to go find out now?......language is sooo confusling ain't it.......