¶ Main Mission
To begin, click the Start button on the Event page.
This challenge is restricted to aircraft with an empty weight below 6,000 lbs.
When you click Start, a confirmation pop-up will display the aircraft currently loaded in your simulator.
If this is the aircraft you want to use for the mission, click Accept.
If not, click Cancel, load a different aircraft in your simulator, and press Start again.
Note that you are free to change the aircraft at the beginning of each leg, as long as it meets the weight requirement.
All aircraft used in this event are considered Freelance, meaning you will not pay any rental or usage cost during the challenge. You don't need to use your own aircraft, Santa provides one for you for every leg, completely free of charge.
¶ Preparing Your First Flight
Your aircraft will be ready at BIIS, with both the Healing Vial and one Dilithium Unit already loaded.
Before taking off, make sure to set a flight time offset so you fly during daytime.
This is important because the main mission must be flown at low altitude (under 300 ft AGL), and daytime visibility makes navigation much easier.
You can now start the first leg of the challenge to BIHN by clicking the Fly now button.
¶ Main Mission Flight Rules
During the main mission legs, make sure to follow the challenge rules.
The Healing Vial is fragile, so your flight must remain smooth and controlled:
- Aircraft must have an empty weight under 6,000 lbs
- Don't start the engine before clicking Start Tracking, or you will damage the vial (–2%)
- Stay below 300 ft AGL (You can monitor your altitude above ground in the OnAir Flight Tracking page.)
- Remain within a 5 NM–wide direct route corridor between airports (GPS-locked)
- The SSD will warn you if limits are exceeded — correct quickly to avoid vial damage
(20 seconds allowed for altitude, 60 seconds for corridor) - **Banking or pitching over 30° causes instant damage **
- G-forces above +1.5 or below -0.75 also damage the vial
When you are flying, OnAir shows clear messages on the map to help you stay within the 300 ft limit:
Below 300 ft AGL — you are under the limit, no damage on the payload (Altitude).
Above 300 ft AGL — you are flying over the 300 ft limit, Healing Vial integrity will start deteriorating in 20 seconds.
Back below 300 ft AGL — you are again under the limit, and the message shows the current Healing Vial integrity.
Don’t worry, keeping the Vial at 100% condition is extremely difficult. Every percent you manage to preserve will still count at the end.
Weather is not a constraint for this challenge, so you are free to use any weather preset to make your flights easier.
Note that: Secondary missions have no flight constraints unlike the main mission.
Some unusual approaches…
¶ Audio Alerts
Several sounds will guide you and help protect the Healing Vial during the flight:
- Sound 1: The Vial has been damaged.
- Sound 2: You have exited the safe corridor (300ft altitude or route).
You have 60 seconds to return inside it before the Vial begins taking damage.
- Sound 3: You are back inside the safe corridor.
- Sound 4: The Healing Vial is destroyed, you must restart the challenge.
¶ After the First Leg
When you complete the first flight, the Dilithium Unit onboard will be depleted.
To continue the challenge, you must obtain a new Dilithium Unit at BIHN.
At BIHN, the system automatically checks whether Dilithium Units are available in the local cooling hangar:
¶ If Dilithium is available at BIHN
You can immediately continue the main mission.
Simply click the aircraft icon on the map to start the next leg.
¶ If no Dilithium is available at BIHN
You will need to bring new Dilithium Units from BIAR by completing a Secondary Mission.
¶ Secondary mission: Bringing Dilithium from BIAR to BIHN
¶ Start the Secondary Mission
Click the BIAR button on the map.
A confirmation pop-up will appear, showing the aircraft currently loaded in your simulator.
Click Start Mission to begin.
¶ Prepare the Aircraft at BIAR
You will arrive on the aircraft preparation screen.
You will always transport 3 Dilithium Units (36 lbs total).
Start by clicking the Fly now button.
Note that secondary missions can be flown at any time and some include unique or unusual approaches.
They have no flight constraints unlike the main mission.
Upon landing at BIHN, your 3 Dilithium Units are automatically stored in the cooling hangar:
- 1 is reserved for you, so you can continue the main mission at your own pace.
- The other 2 become available for other players.
This ensures that you never need to rush, your Dilithium will always be waiting for you, and once you have delivered Dilithium to BIHN, you will always have access to it, even if you restart the main mission.
¶ Continuing the Main Mission
Once Dilithium is available at BIHN, simply click the aircraft button, confirm your aircraft and start the next leg.
Your Healing Vial and your reserved Dilithium Unit will be loaded automatically.
¶ Continuing the Challenge
You can process the same way for each step of the Challenge.
Some flights are over the ocean and can be made easily with time compression and auto pilot without damaging the Healing Vial.
Other flights need to cross mountains under 300ft above ground and will challenge your flying skills.
¶ Scoring
If you fly the Main Mission multiple times, only your best attempt counts.
In case of a tie, the winner will be selected by random draw.
Leaderboard Formula:
Your final score is calculated as:
100 points for each completed Main Mission leg + the percentage of Healing Vial condition remaining at the end.
The use of any exploit will lead to disqualification from the leaderboard.