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Posted (edited)

Description

Angel: Engine Upgrade reduces speed of X-25 Angel from 2160 km/h to 1650 km/h

What Happened

Angel stats, before spending $350k, 50 alenium & 25 alloys on Angel Engine Upgrade:

Screenshotfrom2026-02-2309-33-56.thumb.png.eda60affdd30f47379e1458055747b8d.png

Angel stats, after the upgrade:

Screenshotfrom2026-02-2309-32-20.thumb.png.36e2b814b7214d3a6c2bcfeca04b21a5.png

 

I tested on the geoscape to confirm speed downgrade: before upgrade, Angel flying from Miami toward Tehran makes it into Iraqi airspace before hitting operational fuel limit. After upgrade, same Angel flying from Miami toward Tehran only makes it to Tripoli in Libyan airspace.

Further Information

Credit to @VDmitry who noticed and posted about this issue on the steam discussion boards:

Quote

Before I did the [angel engine upgrade] project X-25 had speed of 2160 km/h and range of 10k km. Now, after engine improvement, the speed is lowered to 1650 km/h and range to 7.8k km (that's on Hangar, because the Pedia still shows initial values).

 

Speculation:  maybe this issue is an unintended consequence of this v7.0.0 strategy layer change:

Quote

Geoscape speeds of all UFOs and aircraft have been doubled. For clarity, this doesn't affect game balance - it just means units move twice as fast across the map on any given Geoscape time setting.

If the upgrade was implemented as a speed stat override, not a speed multiplier, and then the base speed stats of all aircraft were doubled, we might get this issue!

Edited by fusion-waffle
Posted
13 hours ago, fusion-waffle said:

Description

Angel: Engine Upgrade reduces speed of X-25 Angel from 2160 km/h to 1650 km/h

What Happened

Angel stats, before spending $350k, 50 alenium & 25 alloys on Angel Engine Upgrade:

Screenshotfrom2026-02-2309-33-56.thumb.png.eda60affdd30f47379e1458055747b8d.png

Angel stats, after the upgrade:

Screenshotfrom2026-02-2309-32-20.thumb.png.36e2b814b7214d3a6c2bcfeca04b21a5.png

 

I tested on the geoscape to confirm speed downgrade: before upgrade, Angel flying from Miami toward Tehran makes it into Iraqi airspace before hitting operational fuel limit. After upgrade, same Angel flying from Miami toward Tehran only makes it to Tripoli in Libyan airspace.

Further Information

Credit to @VDmitry who noticed and posted about this issue on the steam discussion boards:

 

Speculation:  maybe this issue is an unintended consequence of this v7.0.0 strategy layer change:

If the upgrade was implemented as a speed stat override, not a speed multiplier, and then the base speed stats of all aircraft were doubled, we might get this issue!

Thanks for taking the time to crosspost this from the forums, we'll get it fixed!

  • Like 1
Posted

The "engine upgrade" project for the X-55 phantom interceptor also suffers from the same problem -- applying milestone 6 upgraded speed to new milestone 7 base speed, resulting in a downgrade.

 

Before upgrade: top speed 3,600 km/h

Screenshotfrom2026-02-2415-08-24.thumb.png.1d6c148498769e2a7da687f4febbd11d.png

After upgrade: top speed: 2,250  km/h

Screenshotfrom2026-02-2415-09-07.thumb.png.bafac500bbf8c69144a3ae8dee538123.png

 

Please find attached corresponding f11 bug report zip after the upgrade was purchased  bug_report_2026-02-24-15h09_st_7.2.0_user_f11_1.zip 

Posted
5 hours ago, fusion-waffle said:

The "engine upgrade" project for the X-55 phantom interceptor also suffers from the same problem -- applying milestone 6 upgraded speed to new milestone 7 base speed, resulting in a downgrade.

 

Before upgrade: top speed 3,600 km/h

Screenshotfrom2026-02-2415-08-24.thumb.png.1d6c148498769e2a7da687f4febbd11d.png

After upgrade: top speed: 2,250  km/h

Screenshotfrom2026-02-2415-09-07.thumb.png.bafac500bbf8c69144a3ae8dee538123.png

 

Please find attached corresponding f11 bug report zip after the upgrade was purchased  bug_report_2026-02-24-15h09_st_7.2.0_user_f11_1.zip 

Thanks for the update, we'll look into it!

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