Prydwen

This is the mighty Brotherhood of Steel airship which will be moored in Boston Airport. It will appear as you progress through the story, shortly after defeating Kellogg in Fort Hagen. To enter the airship, head back to Cambridge Police Station and talk to Paladin Danse. You’ll be Knighted here and you’ll get your own set of Power Armor during the quest “Tour of Duty”.

Flight Deck

This is your default entry point whenever you fast-travel to the ship and where you can access the vertibirds.

Foredeck

This has nothing to offer; just a view in the bow of the ship or a jumping point if you want to make an impact landing with your Power Suit on.

Command Deck

Top level connects to the Main Deck and Flight Deck. Middle level connects to the Foredeck

The lowest level is where you’ll find Captain Kells.

Main Deck

This is where you’ll spend most of your time in the ship. This deck has three levels. The lowest level doesn’t have anything except for a recreational terminal and a Nuka-Cola Quantum near it.

In the middle level, from the south, is Maxson’s quarters. The items inside are owned so be careful not to steal anything. The private quarters requires a key and across it is Kells’ quarters. You can take anything inside.

In the central walkway, a short walk to the NW brings you to Cade’s clinic. Across it is Proctor Quinlan’s room. Here, he’ll ask you to find technical documents. You can also select to assist on Patrol to get the quest “Learning Curve”.

The cafeteria is in the middle. There’s a cooking station there that you can use. Following that is the Repair Bay where you can find most components you can use for crafting and modding. If you bought a Power armor frame from Teagan, you can find it in the NW corner of this area. Procter Ingram is managing this area. The weapon and armor workbenches are found in this area.

After that is the quartermaster’s area manned by Procter Teagan. This is where you can buy various items, including BoS Power Armor parts and mods. There is a green steamer trunk behind him as well as some good loot but you won’t be able to get inside unless you can tweak Master terminals and security doors.

In the third level of the Main deck, you’ll find the research area. There are chem stations here. Following that is the crew sleeping area. There are a lot of footlockers here that you can loot. The stairway to the south leads to the Forecastle.

Prydwen Forecastle

There’s also nothing of interest here; just a good vantage and jumping point. There’s a lone Advanced crate here called Sharpshooter’s Stowage that you can unlock and loot.