ACE3/docs/wiki/feature/atragmx.md

layout	title	description	group	category	parent	mod	version
wiki	ATragMX	Handheld ballistics calculator.	feature	equipment	wiki	ace	major minor patch 3 0 0

1. Overview

1.1 AtragMx from Horus Vision

Horus ATragMX software considers atmospheric conditions, gun data, ammunition, range, speed and muzzle velocity to calculate precise aiming solutions with "come-up" results – and even accounts for Coriolis and spin drift effects. ATragMX, loaded on a handheld computer made by TDS Recon, is easy to use and lightning-fast. The Recon meets the rigorous MIL-STD-810F military standard for drops, vibration, humidity, altitude and extreme temperatures.

2. Requirement

• [Advanced Ballistics module enabled]({{ site.baseurl }}/wiki/feature/advanced-ballistics.html)

3. Usage

3.1 Opening the AtragMx

3.1.1 Interaction Menu

• Open the self interaction menu Ctrl + ⊞ Win
• Select Equipment
• Select Open AtragMx

3.1.2 Custom key

• OPTIONS / CONTROLS / CONFIGURE ADDONS / ACE3 Equipment

3.1.3 Inventory

3.2 Example with M14 and default 7.62mm 20Rnd Mag

Start of the mission:

• Open the [Range Card]({{ site.baseurl }}/wiki/feature/rangecard.html) and check the cartridge, the zeroed distance, the rifle twist, the muzzle velocity at 15°C and the bore height.

• Open the AtragMx and the Atmsphr column, select Default and Done. [Manual]
• Open Gun the 7.62x51mm M80 in the GunList. [Manual]
• Select E (English unit) at the top right. [Manual]
• Open the Gun column, check and update the Bore, the Rifle Twist and Done.
• Select M (Metric unit) at the top right.
• Open the Gun column, check and update the Muzzle Velocity, the Zero Range and Done.
• The Muzzle Velocity Table will be automatically updated. [Manual]
• (Must be edited manually for specific cartridges according with the range card)
• Optionally, Save Gun and Done in the GunList.

In position:

• Update the Atmsphr column with the [Kestrel 4500]({{ site.baseurl }}/wiki/feature/kestrel4500.html) and Done.
• Check the new Muzzle Velocity in the Gun column.
• Update the Target column (the [wind arrow]({{ site.baseurl }}/wiki/feature/weather.html) will also help). [1] [2] [3] [4]
• The latitude for all common maps can be found in the [ACE3 Github]({{ site.ace.githubUrl }}/blob/master/addons/common/functions/fnc_getMapData.sqf).
• Apply the vertical and horizontal elevations on the [scope]({{ site.baseurl }}/wiki/feature/scopes.html).
• Control the breath and press.

3.3 Example with Truing tool

Start of the mission:

• Select Drag Coef Table in the Options menu.
• Add the ZR and the C1 (Gun column) in the table and Done.

In position:

• Open the Truing Drop in the Options menu. [Manual]
• Add the actual Target Range in the SUPER column and Calc.
• Add the same Target Range in the SUB column and Calc.
• Apply the actual scope elevation in the Drop field and Calc.
• Accept the new C1, Gun column and Elev are updated.
• The Drag Coefficient Table will be automatically updated. [Manual]
• Optionally, Save Gun and Done in the GunList.

• If a new Target Range is applied in the Target column, select Drag Coef Table in the Options menu and Done.
• The ballistic coefficient C1 and the elevation Elev will be recalculated.

3.4 Example with overwritten zero distance

• The Default zero distance can be overwritten with the [Scopes module]({{ site.baseurl }}/wiki/feature/scopes.html) or the [Settings Framework]({{ site.baseurl }}/wiki/framework/settings-framework.html).
• In this case, the [Range Card]({{ site.baseurl }}/wiki/feature/rangecard.html) will be automatically updated, NOT the AtragMx.
• Open the AtragMx and the Atmsphr column, select Default and Done. [Manual]
• Open the Gun column, check and update the Zero Range and Done.

3.5 Example with Add New Gun in GunList

• Open the [Range Card]({{ site.baseurl }}/wiki/feature/rangecard.html) and check the cartridge, the caliber, the bullet weight and the muzzle velocities.
• Open the AtragMx and the Atmsphr column, select Default and Done. [Manual]
• Select Add New Gun in the GunList. [Manual]
• Add a New Gun Name and Open Gun.
• Select E (English unit) at the top right. [Manual]
• Open the Gun column, check and update the Bullet Weight (grains), the Bullet Diam (inches) and Done.
• Select M (Metric unit) at the top right.
• Open the Muz Vel Table in the Options menu or click on MV in the Gun column.
• Edit manually the Muzzle Velocity Table according with the [Range Card]({{ site.baseurl }}/wiki/feature/rangecard.html) and Done. [Manual]
• The C1 coefficient of the bullet can be found, for example, in the Eden Editor Config Viewer:

configfile >> "CfgAmmo" >> "Range card cartridge" >> "ACE_ballisticCoefficients"

configfile >> "CfgAmmo" >> "Range card cartridge" >> "ACE_dragModel"

• The AtragMx accepts only G1 ballistic coefficient.
• G7 ballistic coefficient can be converted, for example, with the online JBM Ballistics Calculators.
• Optionally, Save Gun and Done in the GunList.

For advanced users, the ballistic coefficient can be calculated by using the 360 Degree Training Course mission as a chronograph at different distances and JBM Ballistics Calculators for example, or an another ballistic software at your own convenience.

4. Official Manual and Horus Videos

• [Official Manual]({{ site.ace.githubUrl }}/blob/master/extras/manual_Horus_ATrag-v385.pdf)
• Horus video part1
• Horus video part2

5. Dependencies

{% include dependencies_list.md component="atragmx" %}