Comparing the various gift lists available, I compiled this:
* Bath towel *OR* Disposable Shampoo *OR* Do Not Disturb Sign
- Fuel (3)
- Air Conditioner
- Cockpit Glass
- Welder
- Landing Lamp
* Copy Machine *OR* Projector *OR* Radar
- Passengers (10)
- Powerful Radio Transmitter
* Flight Goggles *OR* Flight Helmet *OR* Slide Ruler *OR* Textbook
- Fuel Supply
- Jet Engine
* Stapler *OR* Weather Display *OR* Wide-Angle Binoculars *OR* Whiteboard
- Fuel Additives
* Drill Machine *OR* Power Source
- Additional Radar
* Ampere Meter *OR* Cash Counter *OR* Shredder *OR* Smoke Detector
- Spare Wire
* Hull Parts *OR* Laser Cutter *OR* Lining plate *OR* Server Rack
- Landing Gear
- Oscillating Beacon
- Flight Catering
* Cooling Chamber *OR* Packaging Machine
- Navigation Module
* Archive Box *OR* City Model *OR* Master Plan
- Fuel Hose
- Gyroscope
- Spare Propeller
- Deicer
* Air Vent Filter *OR** Controller *OR** Grinding Machine
This list should pretty much complete and match everyone's personal list, except
- lower level players might see one or more locked items
- people who managed to avoid recent updates
Most notably, there are a lot of items missing, like
- All Inclusive Bracelet
- Ergonomic Chair
- Defroster
- Dispatcher Console
- Insulation
- Transmitter (grey, for L5 Tower)
- TV Panel
- any fuel station items (Reinforced Frame, Triple Wire, Transmitter (red))
Then there's those items that lead to confusion on a daily basis:
- Fuel (barrel)
vs
Fuel Supply (white canister)
vs
Fuel additives (purple canister)
- Powerful Radio Transmitter (greyish box)
vs
Transmitter (grey, walkie talkie style)
vs
Transmitter (red rimmed, walkie talkie)
- Additional Radar (circular radar screen in a brown square frame)
vs
Radar (rectangular radar screen in a dark blue frame)
- Defroster (large white contraption)
vs
Deicer (spray can)
Feel free to comment, add stuff I missed, fix stuff where I messed up etc
* Bath towel *OR* Disposable Shampoo *OR* Do Not Disturb Sign
- Fuel (3)
- Air Conditioner
- Cockpit Glass
- Welder
- Landing Lamp
* Copy Machine *OR* Projector *OR* Radar
- Passengers (10)
- Powerful Radio Transmitter
* Flight Goggles *OR* Flight Helmet *OR* Slide Ruler *OR* Textbook
- Fuel Supply
- Jet Engine
* Stapler *OR* Weather Display *OR* Wide-Angle Binoculars *OR* Whiteboard
- Fuel Additives
* Drill Machine *OR* Power Source
- Additional Radar
* Ampere Meter *OR* Cash Counter *OR* Shredder *OR* Smoke Detector
- Spare Wire
* Hull Parts *OR* Laser Cutter *OR* Lining plate *OR* Server Rack
- Landing Gear
- Oscillating Beacon
- Flight Catering
* Cooling Chamber *OR* Packaging Machine
- Navigation Module
* Archive Box *OR* City Model *OR* Master Plan
- Fuel Hose
- Gyroscope
- Spare Propeller
- Deicer
* Air Vent Filter *OR** Controller *OR** Grinding Machine
This list should pretty much complete and match everyone's personal list, except
- lower level players might see one or more locked items
- people who managed to avoid recent updates
Most notably, there are a lot of items missing, like
- All Inclusive Bracelet
- Ergonomic Chair
- Defroster
- Dispatcher Console
- Insulation
- Transmitter (grey, for L5 Tower)
- TV Panel
- any fuel station items (Reinforced Frame, Triple Wire, Transmitter (red))
Then there's those items that lead to confusion on a daily basis:
- Fuel (barrel)
vs
Fuel Supply (white canister)
vs
Fuel additives (purple canister)
- Powerful Radio Transmitter (greyish box)
vs
Transmitter (grey, walkie talkie style)
vs
Transmitter (red rimmed, walkie talkie)
- Additional Radar (circular radar screen in a brown square frame)
vs
Radar (rectangular radar screen in a dark blue frame)
- Defroster (large white contraption)
vs
Deicer (spray can)
Feel free to comment, add stuff I missed, fix stuff where I messed up etc