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[shinhoto]

The first major version of the KI-43 was in front line service until sometime in 1943 if I remember correctly. At the same time, Nakajima was developing the KI-43 II and its variants, with pilot armor and exhaust improvements. Were any of these applied retroactively to the KI-43 I?

I haven't found much on the internet about modifications to the KI-43 I (except armament), and my books on the Pacific War don't really pay much attention to equipment specifics for either side.

[taly01]

The Ki43-I got leak resistant wrapped fuel tanks during 1942, but i've never heard of any other updating for it after 1943.  As you know the Ki43-II was continually upgraded during its production.

https://mysimtech.wordpress.com/ww2aircraft/ki43history/

P.S. the Ki43-I was kept in service until mid 1943 in New Guinea for units that lost their Ki61 and Ki45's. There are Allies intel reports as they captured airfields in New Britain in early late 1943 of fair condition Ki43-I that still had 2x7.7mm (and were painted in blue tint upper surfaces!).

[shinhoto]

I've read a few conflicting things about the self sealing fuel tanks on the KI-43 I, some sources say that Nakajima sent them out from the factory with externally coated tanks, others say that they were fitted later.

As an aside, in BAT there are versions of the KI-43 II with either the HO-103, or the "Browning50_JAP", what is the difference game wise?

[WxTech]

Here are the MGun classes in the synchronized mounting (firing through the prop arc). Note that the properties "power", "powerType" and "powerRadius" determine the bullet type, which can be ball, API or mine (explosive); this thus controls the visual impact effect, such as whether or not there is a flash/smoke puff.


The Ho103 (synced) has 350 rounds firing at 14.67/second, maxDeltaAngle of 0.12, velocity of 710/750m/s, bullet mass of 34/35g.
The Browning_jap (synced) has 500 rounds firing at 10.8/second, MaxDeltaAngle of 0.229, velocity of 870m/s, bullet mass of 48.5g.

The Browning ball round is heavier AND faster and so hits harder, but fires at a slower rate and suffers nearly double the dispersion.

The Ho103 and the Browning50_jap has one explosive shell out of two and one out of four, respectively. (The Bowning50 has two incendiary rounds out of four.)


Ho103:

Code: [Select]

public class MGunHo103s extends MGunAircraftGeneric
{

    public MGunHo103s()
    {
    }

    public GunProperties createProperties()
    {
        GunProperties gunproperties = super.createProperties();
        gunproperties.bCannon = false;
        gunproperties.bUseHookAsRel = true;
        gunproperties.fireMesh = "3DO/Effects/GunFire/12mm/mono.sim";
        gunproperties.fire = null;
        gunproperties.sprite = "3DO/Effects/GunFire/12mm/GunFlare.eff";
        gunproperties.smoke = "effects/Smokes/MachineGun.eff";
        gunproperties.shells = "3DO/Effects/GunShells/GunShells.eff";
        gunproperties.sound = "weapon.mgun_13_800";
        gunproperties.customSound = "weapon.mgun_ho103";
        gunproperties.emitColor = new Color3f(0.6F, 0.4F, 0.2F);
        gunproperties.emitI = 5.1F;  //was 10F;
        gunproperties.emitR = 3F;
        gunproperties.emitTime = 0.03F;
        gunproperties.aimMinDist = 10F;
        gunproperties.aimMaxDist = 3000F;
        gunproperties.weaponType = 3;
        gunproperties.maxDeltaAngle = 0.12F;
        gunproperties.shotFreq = 14.66667F;
        gunproperties.traceFreq = 4;
        gunproperties.bullets = 350;
        gunproperties.bulletsCluster = 1;
        gunproperties.bullet = (new BulletProperties[] {
            new BulletProperties(), new BulletProperties()
        });
        gunproperties.bullet[0].massa = 0.035F;
        gunproperties.bullet[0].kalibr = 0.00012675F;
        gunproperties.bullet[0].speed = 710F;
        gunproperties.bullet[0].power = 0.00074F;
        gunproperties.bullet[0].powerType = 0;
        gunproperties.bullet[0].powerRadius = 0.15F;
        gunproperties.bullet[0].traceMesh = "3do/effects/tracers/20mmYellow/mono.sim";
        gunproperties.bullet[0].traceTrail = "effects/Smokes/SmokeBlack_BuletteTrail.eff";
        gunproperties.bullet[0].traceColor = 0x8c04fffd;  //was ;    //was 0xd200ffff;
        gunproperties.bullet[0].timeLife = 6.1F;  //3F;
        gunproperties.bullet[1].massa = 0.034F;
        gunproperties.bullet[1].kalibr = 0.00012675F;
        gunproperties.bullet[1].speed = 750F;
        gunproperties.bullet[1].power = 0.0F;
        gunproperties.bullet[1].powerType = 0;
        gunproperties.bullet[1].powerRadius = 0.0F;
        gunproperties.bullet[1].traceMesh = "3do/effects/tracers/20mmYellow/mono.sim";
        gunproperties.bullet[1].traceTrail = "effects/Smokes/SmokeBlack_BuletteTrail.eff";
        gunproperties.bullet[1].traceColor = 0x8c04fffd;  //was ;    //was 0xd200ffff;
        gunproperties.bullet[1].timeLife = 6.1F;  //3F;
        return gunproperties;
    }
}


Browning50_jap (extends Browning50, class included at bottom):

Code: [Select]

public class MGunBrowning50s_jap extends MGunBrowning50s
{

    public MGunBrowning50s_jap()
    {
    }

    public GunProperties createProperties()
    {
        GunProperties gunproperties = super.createProperties();
        gunproperties.bullet = (new BulletProperties[] {
            new BulletProperties(), new BulletProperties(), new BulletProperties(), new BulletProperties()
        });
        gunproperties.bullet[0].massa = 0.0485F;
        gunproperties.bullet[0].kalibr = 0.0001209675F;
        gunproperties.bullet[0].speed = 870F;
        gunproperties.bullet[0].power = 0.002F;
        gunproperties.bullet[0].powerType = 0;
        gunproperties.bullet[0].powerRadius = 0.0F;
        gunproperties.bullet[0].traceMesh = "3do/effects/tracers/20mmYellow/mono.sim";
        gunproperties.bullet[0].traceTrail = "effects/Smokes/SmokeBlack_BuletteTrail2.eff";
        gunproperties.bullet[0].traceColor = 0x8c04fffd;  //was ;    //was 0xf900ffff;
        gunproperties.bullet[0].timeLife = 6.5F;
        gunproperties.bullet[1].massa = 0.0485F;
        gunproperties.bullet[1].kalibr = 0.0001209675F;
        gunproperties.bullet[1].speed = 870F;
        gunproperties.bullet[1].power = 0.0F;
        gunproperties.bullet[1].powerType = 0;
        gunproperties.bullet[1].powerRadius = 0.0F;
        gunproperties.bullet[1].traceMesh = null;
        gunproperties.bullet[1].traceTrail = null;
        gunproperties.bullet[1].traceColor = 0;
        gunproperties.bullet[1].timeLife = 6.52F;
        gunproperties.bullet[2].massa = 0.0485F;
        gunproperties.bullet[2].kalibr = 0.0001258062F;
        gunproperties.bullet[2].speed = 870F;
        gunproperties.bullet[2].power = 0.0009768F;
        gunproperties.bullet[2].powerType = 0;
        gunproperties.bullet[2].powerRadius = 0.15F;
        gunproperties.bullet[2].traceMesh = null;
        gunproperties.bullet[2].traceTrail = null;
        gunproperties.bullet[2].traceColor = 0;
        gunproperties.bullet[2].timeLife = 6.5F;
        gunproperties.bullet[3].massa = 0.0485F;
        gunproperties.bullet[3].kalibr = 0.0001209675F;
        gunproperties.bullet[3].speed = 870F;
        gunproperties.bullet[3].power = was 0.0F;
        gunproperties.bullet[3].powerType = 0;
        gunproperties.bullet[3].powerRadius = 0.0F;
        gunproperties.bullet[3].traceMesh = null;
        gunproperties.bullet[3].traceTrail = null;
        gunproperties.bullet[3].traceColor = 0;
        gunproperties.bullet[3].timeLife = 6.25F;
        return gunproperties;
    }
}

Browning50 (Browning50_jap based on this):

Code: [Select]

public class MGunBrowning50s extends MGunAircraftGeneric
{

    public MGunBrowning50s()
    {
    }

    public GunProperties createProperties()
    {
        GunProperties gunproperties = super.createProperties();
        gunproperties.bCannon = false;
        gunproperties.bUseHookAsRel = true;
        gunproperties.fireMesh = "3DO/Effects/GunFire/12mm/mono.sim";
        gunproperties.fire = null;
        gunproperties.sprite = "3DO/Effects/GunFire/12mm/GunFlare.eff";
        gunproperties.smoke = "effects/Smokes/MachineGun.eff";
        gunproperties.shells = "3DO/Effects/GunShells/GunShells.eff";
        gunproperties.sound = "weapon.mgun_15_700";
        gunproperties.customSound = "weapon.mgun_browning50";
        gunproperties.emitColor = new Color3f(0.6F, 0.4F, 0.2F);
        gunproperties.emitI = 5.1F;  //was 10F;
        gunproperties.emitR = 3F;
        gunproperties.emitTime = 0.03F;
        gunproperties.aimMinDist = 10F;
        gunproperties.aimMaxDist = 1000F;
        gunproperties.weaponType = -1;
        gunproperties.maxDeltaAngle = 0.229F;
        gunproperties.shotFreq = 10.83333F;
        gunproperties.traceFreq = 4;
        gunproperties.bullets = 500;
        gunproperties.bulletsCluster = 1;
        gunproperties.bullet = (new BulletProperties[] {
            new BulletProperties(), new BulletProperties(), new BulletProperties(), new BulletProperties()
        });
        gunproperties.bullet[0].massa = 0.0485F;
        gunproperties.bullet[0].kalibr = 0.0001209675F;
        gunproperties.bullet[0].speed = 870F;
        gunproperties.bullet[0].power = 0.0022F;
        gunproperties.bullet[0].powerType = 0;
        gunproperties.bullet[0].powerRadius = 0.0F;
        gunproperties.bullet[0].traceMesh = "3do/effects/tracers/20mmRed/mono.sim";
        gunproperties.bullet[0].traceTrail = "Effects/Smokes/SmokeBlack_BuletteTrail2.eff";
        gunproperties.bullet[0].traceColor = 0xf42b20ff;  //alpha 244
        gunproperties.bullet[0].timeLife = 6.5F;
        gunproperties.bullet[1].massa = 0.0485F;
        gunproperties.bullet[1].kalibr = 0.0001209675F;
        gunproperties.bullet[1].speed = 870F;
        gunproperties.bullet[1].power = was 0.0F;
        gunproperties.bullet[1].powerType = 0;
        gunproperties.bullet[1].powerRadius = 0.0F;
        gunproperties.bullet[1].traceMesh = null;
        gunproperties.bullet[1].traceTrail = null;
        gunproperties.bullet[1].traceColor = 0;
        gunproperties.bullet[1].timeLife = 6.52F;
        gunproperties.bullet[2].massa = 0.0485F;
        gunproperties.bullet[2].kalibr = 0.0001258062F;
        gunproperties.bullet[2].speed = 870F;
        gunproperties.bullet[2].power = 0.0022F;
        gunproperties.bullet[2].powerType = 0;
        gunproperties.bullet[2].powerRadius = 0.0F;
        gunproperties.bullet[2].traceMesh = null;
        gunproperties.bullet[2].traceTrail = null;
        gunproperties.bullet[2].traceColor = 0;
        gunproperties.bullet[2].timeLife = 6.5F;
        gunproperties.bullet[3].massa = 0.0485F;
        gunproperties.bullet[3].kalibr = 0.0001209675F;
        gunproperties.bullet[3].speed = 870F;
        gunproperties.bullet[3].power = was 0.0F;
        gunproperties.bullet[3].powerType = 0;
        gunproperties.bullet[3].powerRadius = 0.0F;
        gunproperties.bullet[3].traceMesh = null;
        gunproperties.bullet[3].traceTrail = null;
        gunproperties.bullet[3].traceColor = 0;
        gunproperties.bullet[3].timeLife = 6.25F;
        return gunproperties;
    }
}


[shinhoto]

Thank you for the explanation.