A central district base unlocks the purchase route
Getting airborne in ROB RUN depends on more than wanting a new vehicle. Buying a helicopter requires your base to be in the central district. You may also find a helicopter in loot, giving you a separate acquisition possibility that depends on luck.
Those are the two routes described in the official ROB RUN helicopter instructions. For ROB RUN how to get a helicopter, check the base-location condition first if you intend to buy one.
Plan your property around the purchase requirement
The helicopter guide names the central district specifically. Owning a house or garage somewhere else is not stated as a substitute for that location requirement.
The separate base guide explains that a base can only be established in a settlement that has an owner. It tells players to find a vacant plot and pay rent at the adjacent sign. Plots in level 2 and level 3 districts require special documents obtained from the Black Market.
Use those property rules when checking your options, while keeping the helicopter requirement precise: your base must be in the central district for a purchase. The source does not equate every higher-level district with the central district or provide a helicopter-specific property fee.
Treat a loot helicopter as a chance, not a guaranteed farm
The developer also says a helicopter can be found in loot if you are lucky. That confirms an alternative to the purchase route, but it does not identify a fixed spawn, a required container, or a drop rate.
If you choose to pursue loot, do not plan around a promised helicopter after a particular number of runs. No repeatable farming circuit or guaranteed heist reward is established by the available official instructions.
The material also does not specify a helicopter price, seller location, pilot-license requirement, or fuel system. Check the actual purchase information and vehicle controls when they are available to you rather than relying on invented extra steps.
FAQ
What do I need to buy a helicopter?
Your base must be in the central district. That location requirement is explicitly stated in the official helicopter guide.
Can I find a helicopter without purchasing one?
Yes. A helicopter can also appear in loot, although the official explanation presents it as a matter of luck.
Where is the guaranteed helicopter loot spawn?
The available official information does not identify one. It does not provide a drop rate or a guaranteed farming route either.
Is a normal car garage enough to buy a helicopter?
The helicopter requirement specifically concerns a base in the central district. The separate personal-car guide's house-or-garage requirement should not be assumed to replace it.