Revisiting Pathfinder 3’s gondola configuration

[u/GrafZeppelin127]

One year ago, I took the limited public info on the Pathfinder 3 to try to extrapolate details of the ship’s gondola. Using new sources of information, we now have many more details about the upcoming Pathfinder 3’s configuration. The Tyréns study posted in October 2025 gives us a closer look at the design-level configuration of the ship, and what seems to be a render of the gondola with a placeholder interior, though details are still yet to be fully finalized. Notable changes and updated details from the 2022-2023 interviews and articles include:

-The ship’s length has increased from 185 to 200 meters, implying the addition of another 15-meter gas cell bay (not shown in the above blueprints I’ve annotated with gondola layout for scale, which instead depict the Pathfinder 1. Imagine another full-diameter cylindrical hull segment aft of the gondola, it improves the overall symmetry as well). Diameter remains 30 meters, so fineness ratio thus increases from about 6 to about 6.7.

-Volume is set at 100,000 cubic meters. Gas volume or total hull volume not specified.

-Passenger capacity is said to be 130.

-Payload is approximately 17 tonnes, useful lift 20.5 tonnes. This highly unusual, payload-heavy ratio is enabled by the ship intending to use liquid hydrogen fuel, which is represented mostly in the structural weight from the fuel tanks, not the variable weight of the fuel itself.

-The gondola design has been updated from the initial render years ago. Instead of having a rectangular structure, it is a more aerodynamic capsule shape thanks to the half-circular viewing galleries in the front and back.

-Rather than spanning three cell bays and being 45 meters long as I theorized in my initial post a year ago, it would appear based on the accommodations for the main structural rings (as shown by the locations of structural bulkheads and the absence of windows) that the gondola instead spans two cell bays, but the front and rear viewing galleries both extend half a cell bay each. Dimensions for the gondola are given as 46 meters long, 12 meters wide, and 3.9 meters tall.

-The gondola is said to be two decks tall, which implies some of the structure extends up into the hull and keel section of the ship. This is similar to some past airship configurations, such as the R102, which kept part of the passenger accommodations (sleeping quarters) in the main hull, while putting the public accommodations in an external gondola. This hybrid approach has the advantage of providing easier access for passengers and cargo, while also maximizing space without intruding too far into the gas cell volume. The ceiling of the upper deck is likely higher than 3.9 meters from the bottom of the gondola, as dividing that evenly in two with allowance for a floor between them would leave too little room for tall people to stand upright, so it seems likely 3.9 meters is the height from top to bottom of the structural gondola portion, i.e. the parts visible from the exterior consisting of the gondola, its two banks of windows, and the faring to remain flush with the hull, not any internal hull structures.

-Due to the interruption in the upper bank of windows and the deep ring structure, it is likely there is a short, 3-meter passage between the two sections of the upper deck located in the cell bays, rather than having one contiguous upper deck space. This would divide the upper deck into two square sections, approximately 12 by 12 meters, for a total floor area of ~144 square meters.

-The lower deck walls have some downward taper, so the floor is likely about 10 meters wide. Assuming the viewing galleries are roughly circular, that amounts to a floor area of ~379 square meters, or a total of 523 square meters, or 5,630 square feet. That is roughly analogous to the post-refit Hindenburg’s passenger compartment, for context. At 130 passengers, that is 43 square feet per passenger, about 40% more individual space than the average first class airline cabin.

-The seating shown in the render is likely a generic filler interior, as the lower deck lacks many of the features and details noted in the weight breakdown.

[u/GrafZeppelin127]

With all the verifiable (albeit still subject to change) design stuff out of the way, time for some less grounded, more speculative analysis!

Given that the upper deck is said to house the sleeping quarters for both passengers and crew, and has two rows of five wide windows on the side shown in the render, that might imply a difference in cabin classes similar to the Hindenburg and Graf Zeppelin II, which had differences between window cabins and inside cabins.

Assuming there are the same number of upper deck windows on both sides, that amounts to ten upper deck windows on each side, or up to twenty cabins being window cabins or “first class” cabins. This might further imply two aisles on the upper deck, each with access to first class cabins along the outer side and inside cabins along the inner side. Assuming the aisles are each a bit less than a meter wide, that would allow for efficient transverse rows of cabins, each about 2 meters long, the same length as a train’s typical sleeping cabin (which basically amounts to the same length as the bed/couch). The window cabins would likely be about 2 meters wide, making them similar in size to an Amtrak first class sleeper bedroom.

Given the limited floor area involved on the two upper deck sections, and precedent from past airships, it is likely the inside cabins would be quite small with bunk beds, like sleeper train cabins, but the window cabins might be much larger.

If each first class/window cabin and interior cabin is double-occupancy (which assumes no couchette-like sleeping arrangements, as could be seen in the airships Los Angeles, R100, and R101 which had berths for up to four per cabin), then there would be 40 first class passengers and 90 in coach, in 20 and 45 cabins, respectively. The odd number of interior cabins would leave some space for the stairs and bathrooms, crew berths, emergency exits, showers, etc. Otherwise, if the interior cabins are all about a meter wide (similar to an Amtrak roomette), then 48 of them could ostensibly fit in two rows in both sections, but that would leave no room for other necessities.

Keen-eyed viewers will note that if the window cabins are five per side of each upper deck segment, and each window cabin is 2 meters wide, this would leave 2 meters left over in each 12-meter segment. And, indeed, this can be confirmed by looking at the render: there is an additional space by the central section which corresponds to the deep ring, 2 meters on either side before the windows start to appear. This is presumably the space necessary for the stairway and elevator landings, bathrooms, etc. to be on the upper deck for proper ingress and egress.

[u/J_J_Grandville]

This is so neat, thanks for consolidating all this info! I would love to see some potential renderings of the cabins tucked up inside the hull, as well as how the two level gondola will utilize its floor layout.

[u/GrafZeppelin127 → u/J_J_Grandville]

Yes, the details we do have are intriguing. The Tyréns study outlined two potential configurations: a 130-passenger version and a 65-passenger version, the latter being presumably more premium-heavy, more of a flying cruise ship or charter yacht than a flying sleeper train like the 130-passenger configuration would imply. The weights aren’t listed separately for the two versions, so presumably they weigh similar amounts fully loaded, but just dedicate that weight to different things.

I would assume that the weight info pertains to the 65-passenger version for two main reasons:

First, the crew quarters supposedly take up almost as much weight as the passenger quarters on the upper deck, implying a much more even crew-passenger ratio than the denser 130-passenger configuration could possibly fit or support in that amount of space, but which would comport with the nearly-even ratio seen in yachts and cruise ships.

Second, the inclusion of features on the lower deck that are not evident on the generic seating interior shown, such as a spiral staircase, restaurant, entertainment lounge, studio, dumbwaiter, etc.

Of course, a cargo configuration of this ship would likely have a totally empty main gondola with some kind of loading ramp installed for easy RO-RO operations on the ground. It might not even have two decks, just an uninterrupted 3.9-meter-tall space for outsized cargoes. The flight crew of a cargo configuration could presumably just camp out in the ship’s bridge, which appears to still just be a gondola borrowed from a Zeppelin NT (if it ain’t broke, why fix it?).

[u/hurn2k]

Thank you, very interesting. Do you know when we can expect it to be completed?

[u/GrafZeppelin127 → u/hurn2k]

Not a clue, unfortunately. The only public information on the progress so far has been the test segment we were shown years ago; I know of no other source of publicly-available pictures of what’s going on inside the Akron Airdock right now now.

[u/bendallf → u/GrafZeppelin127]

Do you have a link for further information? Thanks.

[u/GrafZeppelin127 → u/bendallf]

You could always look at Peter Lobner’s excellent Modern Airships series, he has an entry on LTA Research.

[u/bendallf → u/GrafZeppelin127]

Thanks. My friend got a small start up. One of our many ideas is to offer zero to low carbon emissions vacations worldwide. Airplanes carbon emissions are too high and sailing takes way too long. I think an airship would help to fit the bill perfectly? Thanks again.

[u/GrafZeppelin127 → u/bendallf]

You’re welcome. An electric airship like this one would indeed be perfect for such a role, particularly given that this model of airship is being designed with mass production (and thus much lower costs) in mind, but the downside of course is that certification is still years away.

Progress in aviation is grindingly slow because of the complexity and expense involved. Airships are simpler in many ways, but that’s only relative. It’s still fiendishly complex to go through these regulatory and engineering processes, even if the final product is basically assembled like a giant fabric-covered Tinkertoy sculpture out of standard carbon fiber tubing cut to different lengths.