Photos of MONTE JARINDO/FELGUERA can be found here

When lost she was the last Turret ship afloat.

Thanks again, Cisco. The article (using the Google auto-translation) and the very good cross-section drawing highlights another aspect of the design: when carrying bulk cargoes (especially the looser ones such as grain) the narrow trunkway reduces the negative effect on stability of cargo shifting in heavy seas. The article also says that lumber could be carried on the sides of the deck alongside the trunkway, and that cattle could even be carried on the hatch tops!

Hello David, I finally found a cross section.
https://histarmar.com.ar/Vapores/TrampsTurretSteamers.htm
The text is worth a translate. It would appear that - yes - ease of stowage was the main reason for their appearance with canal dues secondary. Strange that changes to Canal tonnage measurement is given as the reason they stopped building them.
Cheers,
Frank

Hi, Cisco (sorry for the mistyping yesterday!). I don't know whether they had tweendecks - the book I mentioned doesn't have any plans, only photos. But when carrying bulk cargoes a tween deck would be an inconvenience. And tween deck or not, stacking & unloading general cargo into what would be very large wings in the holds would be difficult & time consuming in the days before forklifts, resulting in longer port stays which could in turn reduce or eliminate any port dues saved by the design. The Ships Nostalgia post given by Bjoern does say that they were built with the supply of coal in mind, so I believe they were built primarily for bulk cargoes.

https://www.shipsnostalgia.com/threads/turret-deck-type-ships.43772/
Next: 1 - roll down to: # 12 - May 27,2013 + click URL
2 - roll down to # 6 - Mar.9,2012 Doxford Turret Ships

@ Messrs. del Fresno M. and Knudsen
Yes, the only turret that (to my knowledge)was built outside the U.K. was the FELGUERA - I guess in license of the J. L. Thompson yard. Found two archive pictures of her.

David, Clan Line may also have used their ships to carry bulk at times... Clan Ranald loaded a cargo of wheat in Port Adelaide for South Africa in 1909, that didn't end well.... http://www.southaustralianhistory.com.au/clanranald.htm
Query? I've tried with no luck to find plans for these ships.... did they have a 'tween deck?.

Hi, Claco.
According to Laxon & Perry's book "B.I.", they were ordered for use in "the bulk Indian Ocean trades in coal, grain, sugar and the like", although it's possible/probable they may have carried general cargo on the "return" voyages instead of sailing back empty.
Cheers. David

Jackosan 'although here they are given the classification "general cargo liner" (probably because the term "bulk carrier" had not yet come into use at that time)'

BI would have been operating them as general cargo ships, same as the 30 operated by Clan Line and - I suspect - most of the others.
The main reason this design came into being was to dodge Suez Canal dues.

Reportedly the largest turret deck ships ever built were the Queda, Querimba & Quiloa, all built in 1905 for the British India S.N. Co. of London. Full details of them can be found on P&O's website (https://www.poheritage.com - go to "P&O Archive"), although here they are given the classification "general cargo liner" (probably because the term "bulk carrier" had not yet come into use at that time)

Upo-Mendi 1912 - IMO: 5614639 (no LR)
1940 MONTE JARINDO - 52 FELGUERA
Only turret vessel built in Spain, delivered by Euskalduna in 1912 to Sota y Aznar as Upo-Mendi, being renamed in 1939 as Monte Jarindo. On this photo she was yet as Upo-Mendi, and can be seen with her original look with open bridge.
Year: Euskalduna / 1912
Dead weight: 6,605 MT
TRB: 4,193
Lenght: 111.3 mtr
Breadth: 15.3 mtr
Depth: 7.7 mtr
Propulsion: Reciprocating triple expansion
Power: 1,250 H.P.
BU Gijon 26.10.62 [Desguaces y Salvamentos]

I was captain in this Company in the '80 There was another turrey deck ship in the fleet of coliers in Spain, her name was Felguera, if I found a picture I shall discharge it.

Ship details here: http://www.sunderlandships.com/view.php?year_built=&builder=&ref=101067&vessel=DICIEMBRE

180 ships built to this design and I had never seen a photograph of one before. Wow!

There's a pretty good article in the English-language Wikipedia ("Turret deck ship") about these ships.

An interesting hull design indeed.

Ship in the background is Badagary Palm or Bamenda Palm from about 1956.

IMO:5258755
1895 DICIEMBRE - 1918 BEGONE No.4 - 27 NUESTRA SENORA DEL CARMEN
wrecked off Vallcarca 27.1.63 [Gijon-Bilbao, coal]

Less than three months after this picture was taken, she wrecked off the Spanish coast, carrying coal.

Great shot!! I've never seen one of these before.