Liners
Hi, Mdow, I'll send you a PM with a spreadsheet on the liners that I had researched back in January. I would suggest a three tier set up with small (20,000 ton and less), medium (more than 20,000 up to 30,000 tons), and large (30,000+) liners. There were a lot of liners in the first category, but they typically had speeds of 15-18 knots. Also, a lot of the medium liners were 20-22 knot vessels instead of 25. It probably wouldn't hurt to drop the large liners down to 28 knots. I think the Normandie was the only one that could actually sustain 30 knots.
Cunard-White Star (UK)
Queen Elizabeth - Large (1939)
Queen Mary - Large (1936)
Majestic - large (sold 5/36)
Aquitania - Large
Mauretania - Medium (1938)
Homeric - Large (sold and broken up 2/36)
Georgic - Medium
Britannic - Medium
Carinthia - Small
Franconia - Small
Laconia - Small
Samaria - Small
Lancastria - Small
Sycthia - Small
Laurentic - Small
Alaunia - Small
Andonia - Small
Antonia - Small
Arcania - Small
Aurania - Small
Ausonia - Small
Union Castle (UK)
Arundel Castle - Small
Union Castle - Small
Compagne Generale Transatlantique (France)
Ile de France - Large
Normandie - Large
Paris - Large
de Grasse - Small
Italia Line (Italy)
Roma - Judgement call, this was a 33,000 ton liner with a 22 knot speed. I would call it medium
Augustus - A sister ship to Roma - Medium (?)
Rex - Large
Conte de Savoia - Large
Lombardia - Medium
Canadian Pacific Railway Company (Canada)
Empress of Japan - Medium
Empress of Australia - Medium
Empress of Britain - Large
Empress of Canada - Medium
United States Lines (USA - Atlantic routes)
Leviathan - Large (laid up on 1/1/36 but not sold for demolition until 12/37)
America - Large (1940)
Manhattan - Medium
Washington - Medium
Republic - Small
President Roosevelt - Medium
American Republics Line (USA - Latin American routes)
Argentina - Small
Brazil - Small
Uruguay - Small
Note, these ships were just over 20,000 tons, but had 17 knot speeds so I'm demoting them to small liners based on speed.
Matson Line (USA - Pacific Routes)
Lurline - Medium
Malolo - Medium
Mariposa - Medium
Monterey - Medium
Note, these ships were just under 20,000 tons, but had 22 knot speeds so I'm promoting them to medium liners based on speed.
American President Lines (USA)
President Coolidge - Medium
President Hoover - Medium
Svenska-Amerika Linien (Sweden)
Gripsholm - Small
Kungholm - Small
Hamburg-Sud Amerika Line (Germany)
Cap Arcona - Medium
Wilhelm Gustloff - Small (?) (1938) It was a 25,000 ton ship with a 15 knot speed. She had diesels instead of turbines.
Hamburg-Amerika Line (Germany)
Hansa - Medium
Deutschland - Medium
Hamburg - Medium
New York - Medium
Robert Ley - Small (1939) Again, this is 27,000 ton ship but about a 15 knot speed. Ditto the Wilhelm Gustloff on her engineering arrangement.
Norddeutscher-Lloyd (Germany)
Bremen - Large
Europa - Large
I don't have any data for Spain, Australia, Japan, or Russia. I think Norway had some passenger vessels, but they were pretty small. France had another passenger line that handled a lot of the colonial routes, but most of their ships were either dual passenger/cargo or pretty small in the 5,000 to 10,000 ton range.
Historically, the German government did charter some of their liners to carry troops to and from Spain during the civil war.