Doug

Thanks for the info, however, through an Australian Navy contact I was able get some info from an officer who served on exchange in HMS Orkney and they are "slip tank stowage" for the outboard fuel.

Appreciate the help.

Regards
Bob

Hi Bobby,
Attached are the best photos I could find showing Island Class rear ends 😮🙈
The pic of BNS Sangu you may recognise, formerly HMS Guernsey P297.
As usual most photos are of a few points off the bow, probably thought to be more dramatic / dynamic.
These mysterious racks look like 3x2 chutes for dropping something, I know not what, into the drink. Hedgehog bombs maybe?
Fuel can racks sounds plausible, but why then would you need the big 'oles in the bulwark for that? And would you really want racks of high octane fuel standing about on the quarter deck?🔥
Also puzzling is why 2 stbd side, only 1 portside and 1 in the transom?
Just build them as 3x2 wine racks and fill 'em with champers bottles. 😉

Curiously; while sniffing around I ran across a Deans Marine 1/96 Island class kit advertised as HMS Guernsey. On opening the description the photo showed HMS Orkney, P299, with correct name and pennant number!
https://deansmarine.co.uk/shop/product_info.php/cPath/10_31/products_id/470
Velly stwange!
Happy building
Doug 😎
Viewing tip;
If you download the photos and view in a half decent image viewer (I use Irfanview) you can see the much larger images as in the originals.

Thanks much appreciated. I have some photos after they were transferred to the Bangladeshi navy and they still have the same equipment/fitting.

From the outside shot they look like large roller fairleads on the inside possible fuel can racks for the ribs. I have sent the photos to some of my ex Sea Cadets who were in the navy, on small ships...

Hi BobbyN
Looks like it could be some form of platform that is passed through the hole in the bulwark. Might be to assist with embarking and disembarking from the inflatables stored on the deck.
Interesting subject to model.
dave976