Two A330s and 757s: Aircraft Engine Options

To explain, we need to go back to when the A330 was first released into the game. A332 was the first aircraft to be added back in version 1.3.8 (21 April, 2021), featuring the General Electric CF6 engines. 

Shortly after, another A332 was added, but it was separate from the original A332. This aircraft type was called "A332RR", the "RR" denoting that the new one is equipped with Rolls-Royce Trent 700 engines. 

This happened in update 1.4.0 (18 June, 2021), when the brand new Muscat Airport was introduced to the game. Of course, a new airport also adds new airlines which operate at the airport.

One such airline was Oman Air, which is based at Muscat and also operated the A332. However, contrary to the previous A330s, Oman Air only operates A330s that use the Rolls-Royce engines. For the sake of realism, the new engine type was modeled and attached onto the duplicate type.

A333 followed suit with the GE engine variant being added next update in version 1.4.1 (22 June, 2021), and after that the RR engine variant being added months after in version 1.4.4 (27 October, 2021).

B752 has a similar situation but doesn't have a backstory contrary to the A330s. The separate variants are harder to notice as only one of the engine variants can be bought by players, but they are still shown distinct from each other in WoApedia.

Before version 2.0, all B752s were categorised in the same variant. Since B752 is an old generation 1 model, and hasn't been remodeled, only a single engine type was made.

However, B752 was divided into two variants in 2.0: one with Pratt & Whitney PW2000 engines, and the other with Rolls-Royce RB211 engines. Because of the singular engine model, there aren't any visual differences between the two engine variants.

Aircraft families that are remodeled after 2.0 handle engine types differently. Instead of having separate aircraft types, the same aircraft type can be equipped with different engines.

The best example is the A320ceo (current engine option) family. Airlines may choose the CFM International CFM56 engines or the IAE V2500 engines. Before the A320 family remodel in update 2.3.0 (15 May, 2024), there were two pairs of A319 and A320 to distinguish the engine types.

However, after the remodel, they were combined into a single aircraft type. Looking in the hangar or in WoApedia, the engine types are not separated at all; instead, the game displays the engine type according to the operator's choice.

The 777 family remodel and the 767 family introduction in update 2.6.0 (16 December, 2024) followed the A320 family in handling the engine options, having up to three engine variants for the 767 family. All of the future remodels will likely handle engines this way.

Specifically for the A330 and 757, each pair of the same variant will be combined into a single variant once they have been remodeled. Until then, the engine types will remain divided.