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IDProjectCategoryView StatusDate SubmittedLast Update
0004590USAF[All Projects] Generalpublic2018-09-14 06:242021-03-05 20:32
Assigned Toda12thMonkey 
PlatformOSOS Version
Product Version 
Target VersionFixed in Version 
Summary0004590: GAU-19/A should have a higher rate of fire
DescriptionThe rate of fire of GAU-19/A is up to 2000r/m. In the game it said GAU/LO and the ROF is about 1300r/m. So it is possible to add "GAU/HI" mode?
TagsNo tags attached.
Is it a wish/request?Yes
RHS version
Arma 3 version1.84
Did you used any other mod when the error occurred?No
Which mods?AH-6, GAU-19/A
Attached Files

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-  Notes
tonimontana0328 (reporter)
2021-02-26 11:49

GAU-19As firerate is selectable to be either 1000 RPM or 2000 RPM. The current 1300 RPM firerate is only for the HMMWV GAU19A conversion kit.

https://ndiastorage.blob.core.usgovcloudapi.net/ndia/2005/garm/tuesday/stgermain.pdf [^] Page 5

https://web.archive.org/web/20090323071502/http://www.janes.com/extracts/extract/jalw/jalw2943.html [^]

"The GAU-19/A is designed to accept standard NATO .50 caliber M9-linked ammunition. The rate of fire is selectable to be either 1,000 or 2,000 rounds per minute. The Humvee armament kit version fires at 1,300 rounds per minute"
https://en.wikipedia.org/wiki/GAU-19 [^]
da12thMonkey (administrator)
2021-03-05 20:31
edited on: 2021-03-05 20:32

Will set it to 1000/2000 for the time being but have numerous reasons to suspect that the gun on AH-6M may have been limited to 1300rpm to reduce recoil force yaw, vibration and barrel wear. The guys behind the MELB mod must have set that fire rate for a reason.

The lighter GAU-19/B that was developed for late OH-58 blocks a couple of years before the AH-6J-to-AH-6M upgrade, was likewise limited to 1300rpm, and the rate on GAU-19/A has been adjusted for other uses where vibration was a problem on small platforms similar to AH-6 (1250rpm for Naval use, and as previously mentioned 1300 for HMMWV use). 1300 seems to have emerged as the optimal rate for the weapon since the 2010s.

I just can't find sources that categorically state if the gun's fire rate is limited on AH-6 vs the full rate it enjoyed on the MH-60 and CH-47. Only that it doesn't seem to have been equipped on the AH-6J until the 2000s GWOT created an urgent operational requirement, and became a standard part of the Littlebird's arsenal with the AH-6M

- Issue History
Date Modified Username Field Change
2018-09-14 06:24 ZERO_Thunder New Issue
2021-02-26 11:49 tonimontana0328 Note Added: 0011481
2021-03-05 20:31 da12thMonkey Note Added: 0011507
2021-03-05 20:31 da12thMonkey Status new => resolved
2021-03-05 20:31 da12thMonkey Resolution open => fixed
2021-03-05 20:31 da12thMonkey Assigned To => da12thMonkey
2021-03-05 20:32 da12thMonkey Note Edited: 0011507 View Revisions

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