Lesser-Known Ships of the Pacific War - RFA Fast Leaf Class Oilers

This new stand alone release based on the legendary War in the Pacific from 2 by 3 Games adds significant improvements and changes to enhance game play, improve realism, and increase historical accuracy. With dozens of new features, new art, and engine improvements, War in the Pacific: Admiral's Edition brings you the most realistic and immersive WWII Pacific Theater wargame ever!

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Kohler
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Joined: Thu Jan 04, 2001 10:00 am
Location: 215, 48

Lesser-Known Ships of the Pacific War - RFA Fast Leaf Class Oilers

Post by Kohler »

Hello all, been playing the game casually for some time, but recently retired and have a bit more time on my hands. Like many players I am making a custom campaign (Allied v AI). I enjoy historical research and want to share some findings in the forum. I'd like to make this an ongoing series where lesser-known ships are given a bit of limelight. In WitPAE, the Royal Navy always seemed like it could use some filling out so this thread will be specific to the Royal Fleet Auxiliary Fast Leaf Class Oilers.

Ordered in 1915, the 6 Admiralty-designed ships in this Class, also known as the TEXOL CLASS. were powerful twin screw ocean tankers which were very advanced for their day. Strangely enough, all of them were built by different shipyards. They were designed to act as Escorts on Atlantic Convoys during the First World War, whilst also bringing cargoes of oil fuel from the United States to Britain.

They were originally designed with names of oil-bearing countries with the OL suffix, but their military appearance and Naval names caused difficulties with the United States Neutrality Act. Various modifications were made and all 6 were then placed under the commercial management of Messrs Lane & MacAndrews Ltd with LEAF names in common with other converted ships running as Admiralty tankers under that firm’s management.

They were fitted with 6 Scotch boilers in two entirely separate boiler rooms without an inter-connecting door between them until eventually this was rectified which enabled them to then have a smaller complement of around 66 European or 90 Lascars. Unfortunately, they had a very heavy fuel consumption which exceeded 90 tons per day at full speed and they mostly ran on just 3 boilers at reduced speed thus cutting fuel consumption to around 33 tons per day.

With dimensions of around 425.0 (o.a.) x 54.5 x 28.5 ft, the ships were fitted with 4 very powerful cargo pumps with a pumping rate of 2000 tons per hour. They also had 4 cylindrical petrol tanks fitted in their summer tanks later in their careers, with a capacity of 47,000 gallons with a separate pumping system plus a considerable fresh water distilling plant too.

The Class consisted of
APPLELEAF (1) https://historicalrfa.uk/rfa-appleleaf-1/
BRAMBLELEAF (1)
CHERRYLEAF (1)
ORANGELEAF (1)
PEARLEAF (1) https://historicalrfa.uk/rfa-pearleaf/
and PLUMLEAF (1)
with BRAMBLELEAF (1) and PLUMLEAF (1) becoming WW2 casualties.

Appleleaf and Pearleaf saw extensive service in the Pacific, and the links after each ship name provide an excellent record of their activities.

In Game - Comments here are not intended to be a criticism of the developers work. Appleleaf is represented in the base game, but as a Dominion M Cargo class vessel. Pearleaf is not represented in the base game. Some mods may have these ships included.

Sources;
Cavalry Corp
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Re: Lesser-Known Ships of the Pacific War - RFA Fast Leaf Class Oilers

Post by Cavalry Corp »

Dear Kohler,

interesting read...

just doing an update for my mod and would like to include these two ships, always interested in little know and forgotten ships so they can live again:)

Can you suggest some game stats?

Do you have an art work suggestion.

wish I could retire...

cheers

Cav
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LargeSlowTarget
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Re: Lesser-Known Ships of the Pacific War - RFA Fast Leaf Class Oilers

Post by LargeSlowTarget »

I have Pearleaf in my mod, but I have missed Appleleaf.

And I realise now that the stats in my mod are wildly off :(

About 5900 GRT, 14 knots speed. Art work resembles Bitmap 516, masts and funnel not quite right but close enough for me.

https://transportsofdelight.smugmug.com ... /i-TTqPp9J
Cavalry Corp
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Re: Lesser-Known Ships of the Pacific War - RFA Fast Leaf Class Oilers

Post by Cavalry Corp »

LST Cheers for that !!!

AO ? capacity?

cav
Cavalry Corp
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Re: Lesser-Known Ships of the Pacific War - RFA Fast Leaf Class Oilers

Post by Cavalry Corp »

Ok, here is my first shot - please feel free to offer adjustments...It will be added to my next patch with Apple.

so happy to have more oldies in the game ( ships I mean) :) suits my mod and makes sure brave sailors are not forgotten.

Added a credit to you in the mod notes for this find Kohler...

These ships will be useful early on as the UK has so many short-legged ships.

I think the speed looks like it should be 16kt - have just changed that before posting.

Cav
pearScreenshot 2025-08-21 215014.png
pearScreenshot 2025-08-21 215014.png (697.31 KiB) Viewed 254 times
Kohler
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Re: Lesser-Known Ships of the Pacific War - RFA Fast Leaf Class Oilers

Post by Kohler »

Looks good Cav and LST, the Leaf Class oilers have been resurrected! I'm still trying to understand how to translate real world ship specs into WitP ship numbers, so now I can add those to my mod as well. Congrats to LST and Cav on your mods, some really excellent work. The dedication of this community is really beyond words. I have more ships for this type of a thread, but I think I'll start all future threads in the in the Scenario Design and Modding forum, which seems more appropriate.
Cavalry Corp
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Re: Lesser-Known Ships of the Pacific War - RFA Fast Leaf Class Oilers

Post by Cavalry Corp »

Kohler,

Ok, and thanks, I think these are medium types, so the total weight seems about right. I guessed the AA, etc, they have small updates 12/42 and 12/43. they are designated fast so I have made the speed 16/10 as per the links you posted - seems fair.

Anything else that you think is important, ( especially old obsolete ships), please let me know so I can consider for inclusion as this update is one of the last - unless errors are found and there are bound to be a few. My new patch is a supreme effort to improve the art, especially, but there is other tinkering as well.

Cav
pnzrgnral
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Re: Lesser-Known Ships of the Pacific War - RFA Fast Leaf Class Oilers

Post by pnzrgnral »

Kohler wrote: Fri Aug 22, 2025 3:33 am Looks good Cav and LST, the Leaf Class oilers have been resurrected! I'm still trying to understand how to translate real world ship specs into WitP ship numbers, so now I can add those to my mod as well. Congrats to LST and Cav on your mods, some really excellent work. The dedication of this community is really beyond words. I have more ships for this type of a thread, but I think I'll start all future threads in the in the Scenario Design and Modding forum, which seems more appropriate.
Kohler, Cav...good stuff. Kohler, I had the same issue translating fuel capacity into WITPAE numbers when I created the Liberty tanker class and ships. I've noticed that Appleleaf is included in the Babes (B) as a cargo ship.
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Cavalry Corp
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Re: Lesser-Known Ships of the Pacific War - RFA Fast Leaf Class Oilers

Post by Cavalry Corp »

My figures are just an estimate - in my mod, for warships, I use about halfway between standard and full load tonnages.
Many ships have higher durability - but I think stock is a bit light on that anyway. But where designs are deficient, I apply a bit of a penalty.

Cav
pnzrgnral
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Re: Lesser-Known Ships of the Pacific War - RFA Fast Leaf Class Oilers

Post by pnzrgnral »

Kohler, I used 7000t for fuel capacity. I preferred to use a conservative number as I had asked the forum if anyone had either done research on Liberty tankers, or had an inkling as to fuel capacity in-game for real world tankers - I received no helpful answers to my query, sadly.
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Kohler
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Re: Lesser-Known Ships of the Pacific War - RFA Fast Leaf Class Oilers

Post by Kohler »

This might get us closer. The Z-ET1-S-C3 Liberty Tankers had a capacity of 65,000 barrels, whereas the T2 Tankers had a capacity of 135,000 barrels. In game the T2 capacity is 14,000, which would make the Liberty capacity approx. 6700. Source is
https://www.aukevisser.nl/t2tanker/index.htm
I will adjust mine accordingly. Great that you brought this up.
Cavalry Corp
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Re: Lesser-Known Ships of the Pacific War - RFA Fast Leaf Class Oilers

Post by Cavalry Corp »

Ok I will slightly increase

Cav
pnzrgnral
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Re: Lesser-Known Ships of the Pacific War - RFA Fast Leaf Class Oilers

Post by pnzrgnral »

Good catch, Kohler! I'll adjust mine as well!
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