Hovering in an electrically powered helicopter uses no fuel

[anothersimulacrum]

Describe the bug

Converting a helicopter to electrical power, flying up, and then waiting for some time costs no fuel other than the fuel used in ascending.

Steps To Reproduce

Spawn in a two seat, remove the fuel tanks and engine, then install a storage battery and super electric motor.
Fill the storage battery, then fly up to some height and wait indefinitely. The helicopter will use no fuel from hovering.

Flying at speed 6 in the helicopter also appears to use no fuel.

Save with helicopter:
Otho.tar.gz

Expected behavior

Hovering and flying at low speeds in a helicopter still uses fuel.

Versions and configuration

• OS: Linux
  • OS Version: Arch Linux, kernel version 5.5.13
• Game Version: 0.E-327-g0f1e6aa36d [64-bit]
• Graphics Version: Tiles
• Game Language: System language []
• Mods loaded: [
  Dark Days Ahead [dda],
  Disable NPC Needs [no_npc_food]
  ]

[kevingranade]

This issue has been mentioned on Cataclysm: Dark Days Ahead. There might be relevant details there:

https://discourse.cataclysmdda.org/t/vehicle-question-spooilers-aftershock/24462/23

[actual-nh]

Still happening?