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Changelog

The Changelog lists in detail all updates and improvements made to AirwaySim over time.

Here you can see what has changed, what has been improved, and how the simulation continues to evolve.

Changelog
25-Jun-2025

New Fleet Commonality System (#2)

THE NEW COMMONALITY FEATURES ARE BEING IMPLEMENTED TO ALL RUNNING GAME WORLDS, APART FROM THE CURRENT MODERN TIMES GAME, GRADUALLY OVER THE NEXT FEW DAYS.

New features

  • Partial Commonality feature ("Fleet Similarity Bonuses") added. Similar models, such as A320 and A330 can now benefit from cost savings based on similarity between fleets.
  • Fleet Commonality Calculator feature added. This feature allows you to simulate how adding or removing aircraft types would affect your airline’s monthly fixed costs.
  • Fleet Commonality chapter in user manual updated: https://manual.airwaysim.com/simulation-documentation/fleet-commonality

Improvements

  • Fleet Commonality page is now in tab format, with own tab for Aircraft and Engine Commonality costs and for Calculator.
  • Engine Commonality tab now includes the "Engine Types Overview" section and data on cost overhead ("bloat") from operating various engine types.
Posted at: 25-Jun-2025
16-May-2025

New Fleet Commonality System

New features

NOTE: THIS FEATURE IS CURRENTLY ONLY AVAILABLE IN THE NEW AGE OF FLIGHT SCENARIO.

  • The whole code for calculating the commonality costs has been fully rewritten (AirwaySim v.2.0).
  • The biggest change is that once you add a new fleet, the costs of the other fleets stay as they are already - there are no sudden and hidden jumps and the whole system is more predictable. However, there is a new "Fleet Count Bloat Factor" that starts to increase all commonality costs company-wide mildly and logically from the third fleet type onwards. In other words we still have the disadvantage-factor of operating too many fleets, but it now behaves and scales totally differently than before for better realism.
  • The overall commonality related training and maintenance costs are thus lower than in the past version.
  • The costs are calculated on a "base cost per fleet type" + "per-aircraft cost in fleet" manner, so operating one single aircraft is relatively more expensive than operating for example 10 aircraft of the same fleet.
  • Another notable change for realism is that all your aircraft in operational state ( = even the ones with no routes) count towards the commonality costs (since the costs for having the ability to operate the aircraft naturally start when the aircraft is in your possession). Aircraft in long-term storage are still free of all commonality related costs.
  • The training costs are now calculated in a more realistic manner based on the actual crew numbers needed by the fleet. (This includes also a rather significant bugfix where flight crew numbers were not correctly taken into account by the old commonality model, and thus you will see lower training costs in v.2.0 fleet commonality.)
  • Aircraft size scales now the costs properly, and is based on the fleet's Size Class (1-4) and the fleet's average size (MTOW).
  • Training and Maintenance costs have a new internal "Efficiency Factor" that gives you benefits of scale, i.e. large fleet brings the overall costs per aircraft down, in a similar way the Admin costs have already been in the old version.
  • Aircraft's fleet-specific "Maintenance Cost Factor" is also taken into account, basically giving cost advantages to more modern fleet types.
  • There is a new "Base Bloat Factor" that increases costs if your fleet is spread to different base airports since they each need their separate support facilities. Naturally if you operate a single fleet at a single base only, no such bloat exists for that fleet's costs.
  • Costs for small airlines are made a bit lower overall (up to airlines with a fleet of 10 planes or less) to help with the start-up phase.
  • A new "partial commonality bonus" will be introduced in the next update round of this feature.
  • The User Interface is also new and v.2.0 mobile-compatible. This will be fine-tuned with more improvements soon, with for example a "commonality calculator" feature.

Other New features

  • Website's main news system is upgraded to a new publishing system (no visual changes to user interface at this stage).

Improvements

  • Adjusted a bit the cargo-conversion rates by AI Used Aircraft Brokers (less frequent now).
  • Minor usability improvements to text editor in airline/alliance description & notepad.
  • Improved the in-game single-page loader (SPA) where the backend notifications won't load if the page is left open/idle for a long time.
  • Core website now includes a better detection of temporary and disposable e-mail addresses, also additional anti-spam services added to registration and forum posting.
  • System now purges unused user accounts more effectively and earlier.
  • Made some re-organization to some backend files and assets for better management.
Posted at: 16-May-2025
18-Feb-2025

Minor improvements and fixes

Improvements

  • Updated Credits store's backend libraries due to security policy changes.
  • Alliance invitation menu now makes sure the airline is not listed as a possible invitee if it shares HQ/base with any other existing alliance member. (n.b. this does not apply to alliance application from the applying airlines' side since this still within the old UI)

Fixes

  • Low Credits balance e-mails were being sent out too often.
  • Notifications of in-game messages did not always pop to the main navigation's notification balloon.
  • Scheduling page's search data became sometimes corrupted preventing the page load.
  • Alliance icon of an alliance still in founding state ( = not yet offically formed) showed up in route planning's airline schedule listing.
  • If an aircraft was in long-term storage and a model conversion (e.g. to freighter) was performed, and the plane was taken out of the long-term storage while the conversion maintenance was still ongoing, the D check included in the conversion was not being performed. Fixed by disabling the long-term storage removal while conversion maintenance is ongoing.
Posted at: 18-Feb-2025
07-Dec-2024

Minor improvements and fixes

New features

  • Airline Description, Alliance Description and Airline Notepad have a new text editor, allowing you to style the text with basic styling such as bolding, underlining, centering and lists.

Improvements

  • Improved a few error messages in the core website.
  • Technical improvements to the handling of modal dialog windows in the new UI.
  • Updated again some backend libraries.

Fixes

  • Oversupply warning did not reset if route was "cargo only".
  • Route Editor did not show correct payload limitation in the very rare case of route having an additional technical stopover airport where route payload limitation was caused by runway performance at the second leg departure airport and where the aircraft in question had an internal engine/weight fuel usage performance multiplier other than "1.0".
  • Game Time to Real Time tooltip info conversion was not correct at New Aircraft ordering page.
Posted at: 07-Dec-2024
07-Nov-2024

Minor improvements and fixes

New features

  • Company Notepad, Alliance Description and Aircraft Nickname fields updated to UTF-8 format, allowing storage of various special characters. 🛫😎

Improvements

  • Made some re-structuring on how some game content / scripts are loaded, for better performance for the future.
  • Compacted the side "filters" menu a bit in mobile, to make all content fit better to a small screen.
  • Updated some backend libraries.
  • Minor technical changes to incomesheet's storage design, and to aircraft data storage format.
  • Changed the UI form validation library due to published CVE.

Fixes

  • Used aircraft market cleanup function did not run properly in the Age of Flight game.
  • Fixed occasionally occurring cache file permissions issue at the backend scripts.
  • Fixed missing airline alliance definition from bankruptcy function at Game Subscriptions page.
  • Fixed a route editor's database issue occurring during new games' first day.
Posted at: 07-Nov-2024
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