[2.1.14] Unused rocket capacity and stack size for vehicle weapons
Posted: Sun Aug 23, 2026 4:56 am
Hello! 
1. What did you do?
View vehicle weapon properties (from actual items, when viewing the vehicles in the factoriopedia, and when viewing the vehicle weapons in the factoriopedia). This applies to: Vehicle machine gun, Tank cannon, Vehicle flamethrower and Spidertron rocket launcher.
2. What happened?
These items, which cannot be obtained, manipulated or launched, display the rocket capacity and stack size properties.
3. What did you expect to happen instead?
TLDR: I would expect these two irrelevant properties should be hidden.
4. Does it happen always, once, or sometimes?
Always
5. Other thoughts
When viewing the vehicle machine gun in the factoriopedia, it doesn't say it's used by both vehicles. It might be slightly more user friendly to display both in the "Used by vehicle" section.
Upon further investigation, I realized there are two "Vehicle machine gun (Item)" items, one for the Car (item-ID 236) and one for the Tank (item-ID 235). All of their properties are the same (unless showing Debug information). This is likely to make it easier to track these as they are not unlocked at the same time. Considering this, it's probably simpler to keep them separate, but I'm raising this discrepancy just in case someone sees this differently or determines there could be an easy fix.
1. What did you do?
View vehicle weapon properties (from actual items, when viewing the vehicles in the factoriopedia, and when viewing the vehicle weapons in the factoriopedia). This applies to: Vehicle machine gun, Tank cannon, Vehicle flamethrower and Spidertron rocket launcher.
2. What happened?
These items, which cannot be obtained, manipulated or launched, display the rocket capacity and stack size properties.
- Vehicle weapons odd properties.png (980.8 KiB) Viewed 92 times
3. What did you expect to happen instead?
TLDR: I would expect these two irrelevant properties should be hidden.
- These items can never be held in an inventory or sent in a rocket.
- Seeing stack size 1 kind of makes sense, but I think displaying this information serves no purpose.
- I noticed this was previously 5 in 100129, which is the stack size and rocket capacity values for the handheld rocket launcher.
- Seeing rocket capacity 10k, and 10k stacks of these intangible items per rocket is definitely odd. Had this value been 1, my eyes would not have seen 10k stacks and I would likely not have made this post. Thinking about it however, it's likely preferable to hide this property entirely (no matter its value).
4. Does it happen always, once, or sometimes?
Always
5. Other thoughts
When viewing the vehicle machine gun in the factoriopedia, it doesn't say it's used by both vehicles. It might be slightly more user friendly to display both in the "Used by vehicle" section.
- Separate entities for vehicle machine guns.png (108.29 KiB) Viewed 92 times