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Yugoslavian Partisan Navy in WWII- Adriatic Sea

Soviet cogitations: 311
Defected to the U.S.S.R.: 20 Feb 2010, 11:57
Resident Admiral
Post 17 Jun 2010, 15:07
During WWII, the Yugoslavian communist partisan movement organized into the “National Liberation Army” (NOV) was among the most powerful European resistance organizations fighting Nazi-fascism.
With the development of war, the partisans grew in size, power, and popular support due the horrific repression committed by Nazi-fascist occupation’s forces.
Even the western Allies realized how they were the most formidable asset and an invaluable front against the Nazi Germany, eventually recognizing the communist rule and providing collaboration and support.
It is important to stress that such support co-existed with a similar Soviet support (before the Soviet-Yugoslavian political split in early Cold War): partisans and Soviet Army liberated together Belgrade.
Interestingly, the western Allies at first backed the monarchist Serb “Chetnicks” (notorious for keeping their beards and hair long “until the King’s rule was restored”): they proved unreliable and joined the Axis, committing atrocities against population alongside Nazi Germans, Italian fascists and the Christian-fascist Croat “Ustasha”.

The naval component of the war was quite significant: during the struggle against Fascist Italy (before 8 September 1943), partisan used fishing boats and attacks from shore to harass small transport boats on supply duties.
The Navy was fully reorganized in September 1943 for the struggle against the Nazi Germany and its puppet forces: boats were split between gunboats " NB " (up 30metres of length, 40mm and 20mm guns, 10-20 crewmembers) and smaller patrol boats "PC” (usually only 20mm guns, 10-15 crewmembers).

The Partisan Navy operated primarily from Vis Island that stationed also Royal Navy units operating motor torpedo boats and gunboats (acting independently).
During the time of conflict, the Allies never delivered to partisans proper warships except for twelve small ex-British landing ships (LCT(2) type) proving invaluable for transporting and landing partisans but they did not suffer losses nor encountered the enemy in action. The Kriegsmarine operated few larger units in Adriatic (all ex-Italian corvettes or torpedo boats) mostly engaging British and French warships. However, motor torpedo boat, small assault boats and landing crafts engaged partisans. Partisan units however primarily engaged supply transports resulting in boarding and seizures. Sometimes there were clashes with auxiliary armed boats (ex-civilian converted).

The Yugoslavian Partisan Navy was one of the three communist naval forces active in WW2, alongside the similar Greek partisan Navy (ELAN) and obviously the Soviet Navy. Interestingly, it appears by sheer numbers the Yugoslavian partisans scored a similar success in terms of enemy targets seized/sunk in direct surface actions compared with the Soviet Navy! (Excluding motor torpedo boats and Soviet successes against Japan and Manchukuo).
Confirmed data include 10 military/armed boats (1 minelayer, 1 “anti-partisan” ship, 1 landing craft, 1 armed tug, 2 armed auxiliary boats, 4 minor crafts) and 25 transport/supply boats.

In addition to the early Italian and later German activity, in 1944 operated also the “Navy of Independent State of Croatia”: effectively a puppet-state with no real function, led by the extremely unpopular Croat “Ustasha” Christian-fascist organization, the “Navy” proved unreliable to the Germans, due sailors’ sympathy for partisans, attempted and succeeded defections.

Interestingly, the Partisans received a number of pre-war Yugoslavian warships (including a submarine and two torpedo boats) in August 1945 that fled to exile with the German occupation and saw little service with Allies. However, the war in Europe was over and on 29 November 1945, the Socialist Federal Republic of Yugoslavia was proclaimed.

NOTE on name conventions: Technically the communist partisans were named under the “National Liberation Army”, however the wording “Partisan” (rather than “Yugoslavian”) is widely used both by international and Yugoslavian literature
NOTE: The following list do not include Partisan transport/supply boats lost due enemy air raids or ground action, nor Partisan successes scored solely by ground actions/shelling (only 1 attack reported due importance). Details of river warfare is not included due scarcity of sources.

Most of the data come from the Yugoslav Naval Encyclopedia ( and sites (english), (croat)
German data from the War diary : German Naval Staff Operations Division (available online: ... ligence%22 ) and the invaluable (German database)
British info from


23 May 1942
Partisans using a fishing boat captured transport boat Mira.

11 August 1942
Partisans using a fishing boat captured transport boat Dux.

19 October 1942
Partisans using a fishing boat attacked two transport boats.

18 November 1942
Partisans using a fishing boat captured a transport boat.

18 December 1942
The Yugoslavian’s People Liberation Navy officially founded.

On December 1942, Partisans officially put in service their first armed patrol boat named “Pionir” (a former fishing boat with only 8 crewmember and 1 machinegun). This single boat would later joined by “Partizan” and “Proletar” by the end of January.

31 December 1942
Partisans using two fishing boats captured five transport boats: Istok, Madre Giovanna, Otac Vladimir, Zdravlje, Sveti Ante.
Partisan patrol boat “Pionir” confirmed by Jugoslavian sources to have taken part to action.

1 January 1943
Partisan patrol boat “Pionir” captured transport boat Europa and attacked Sveta Eufemija. She would enter service as the second armed patrol boat, named “Partizan”

4 January 1943
A partisan boat attacked transport boat San Spiridione.

22 January 1943
A partisan boat captured and burned transport boat Giuditta.

? February 1943
Partisan patrol boat Partizan (former captured transport boat Europa) sunk by Italian seaplane.
This left only the Pionir as official patrol boat in service.

22 March 1943
A partisan boat captured and sunk transport boats Maria Luisa and Renato.

14 April 1943
A partisan boat captured motor ship Africano.

27 May 1943
A partisan boat attacked a convoy

21 July 1943
A partisan boat captured a transport boat.

8 September 1943
The surrender of Italy will bring a big change on the Partisan Naval Force that will start to be re-organized and re-armed, with proper patrol boats (usually former fishing boats) converted and re-armed and gunboats (larger units) with more weapons.

1 October 1943
Gunboat NB-9 Biokovac opened fire (with support of ground forces) against the enemy transport ship Rab (was carrying Ustasha troop), no damage was caused but ship retreated.

6 October 1943
Italian torpedo boat Missori captured an unidentified partisan transport boat (cargo of weapons).

20 October 1943
A German KTB (War Diary) online, reports a clash between an auxiliary sailing vessel against an enemy (partisan?) similar unit close Ilovik Island. The same German boat reported to have clashed against other two enemy vessels at Isto island, returning finally to Pola with casualties. It's unclear both the identity of the German vessel and the attackers. It's also possible that the clash has been reported with some delay into the main KTB. Partisan action is likely, unreported because the subsequent German offensive on coastal area.

3-4 November 1943
During the night, the gunboat NB-9 Biokovac had a clash against the enemy armed boats Marija and Naprijed: the gunboat suffered few hits and the commander was wounded. Also the Germans suffered damages, an officer and other 6 sailors wounded .

5-6 November 1943
Small patrol boat PC-61 Udar forced to escape the German transport boat Sv. Franjo that was also damaged.
Enemy suffered 8 killed and 5 wounded, because of the close-quarter fight and launches of hand grenades.

11 November 1943
Patrol boats PC-21 Marjan and PC-22 Streljko damaged an enemy armed boat. Another source say there were two enemy armed boats: the partisan attack failed and they suffered one wounded.

13 November 1943
German cruiser Niobe and torpedo boat TA-21 captured the already damaged patrol boat Partizan-3 and a fishing boat (both damaged by air raid). Patrol boat was part of the previous units (not yet operating under NB / PC classification). In addition, Germans reported other vessels captured, but they were probably civilians. 8 British advisors also captured.
The patrol boat was not part of the new flotilla of classified and named gunboats (NB) and patrol boats (PC), but was part of the previous 1943 period.

28 November 1943
German motor torpedo boat S-61 claimed to have boarded and then scuttled an unidentified partisan transport boat.

8-9 December 1943
Gunboat NB-9 Biokovac, with support of PC-54 Turist, captured the Ustasha transport boat Jadro. Apart the crew of 6 (including the commander that actually collaborated with the Partisan Intelligence and signaled the route of the ship), were captured 30 Ustasha and 2 Germans (even if one of them escaped, throwing himself overboard and swimming to the coast). Apart the weapons of the Ustasha (31 rifles and 8 guns) was captured also the cargo of 90 tons of food.

Photo of NB-9

9-10 December 1943
During the night, the gunboat NB-6 Napredak, with support of the small patrol boats PC-43 Napred and PC-45 Batos, captured the Ustasha transport boat Sv. Nikola. It appears that as the capture of Jadro, Croatian sailors had contacted the partisan intelligence and signaled the route of the boat. Unclear the load carried.

Photo of NB-6.

10 December 1943
Patrol boat PC-3 Skampo attacked an enemy steamer without results.

12 December 1943
Gunboat NB-8 Kornat was damaged by enemy ground mortar attack: 1 sailor killed, 1 wounded

16 December 1943
Patrol boat PC-3 Skampo attacked an enemy steamer, causing probably only little to moderate damage.

17/18 December 1943
Sailors of the patrol boat PC-2 Macola attacked from ground a German motor boat, some partisan sailors were killed.
This event match with the loss of German landing craft SF-193: she hit and grounded due artillery fire from British motor torpedo boat MTB-637, but later targeted by the partisans. Germans suffered 6 KIA, 11 MIA and 29 later rescued. Ship also carried 24tons of fuel for vehicles, 29 infantrymen and 800 lifejackets. Other partisan sources claimed a second PC boat involved, with an overestimate of troops transported (up 150).
Technically, this shared success represent the most significant officially rated warship of Kriegsmarine lost due shared British/Partisan action (excluding the un-rated minelayer Pasman, and a number of armed boats of civilian origins: they were however often more armed and larger than this Siebel landing craft).

20 December 1943
The patrol boat PC-53 Zora and the small patrol boats PC-41 Napredak, PC-42 and PC-43 Napred with the allied British motor torpedo boat MTB-649 and the help of partisan coastal artillery, attacked and captured the German armed boats HZ-8 and HZ-9. The Partisan Navy will later use the two units as gunboats (NB-1 Krava and NB-2 Koca).
It was the most effective coordinated Partisan and British action against Germans.

24 December 1943
Small patrol boat PC-64 Neutralni attacked and sunk a German landing boat. Actually, according the German KTB (War Diaries) online, the Germans lost two landing boats during landing on Korcula Island. It is possible that the other unit sunk by coastal artillery. Currently it is unclear the class of the lost boats (maybe they were smaller assault boats and not larger MFP or Siebel class landing crafts).

27 December 1943
Small patrol boat PC-61 Udar and the gunboat NB-5 Ivan were all sunk by German air attack.
Some sources report also the loss of the small patrol boat PC-67 Kerc, but it's not confirmed.

NB-5 Ivan was a former American submarine chaser (SC-1 class) acquired before the war and used for civilian purpose.

28 December 1943
According most of the sources, the small patrol boat PC-60-II Vjekoslava was sunk by a German air attack.

31 December 1943
The German small minelayer Pasman accidentally stranded, on the way to be moved to the Ustasha naval forces (technically she was not a Kriegsmarine rated nor was yet part of the Navy of “Independent State of Croatia”).
Despite her unofficial status (due the transfer) she was effectively the largest/most advanced warship lost due partisan naval action.
Gunboat NB-3 Jadran attacked the Pasman, forced the crew to surrender (24 Germans and 4 Croats) and later destroyed the minelayer with explosive charges on day 5 January. A German rescue mission with the torpedo boat TA-22 occurred only on 9 January (it was delayed by weather) when it was already too late.
The Pasman was a small ship but could have had some combat value in her functions.

Photo of NB-3 (larger one) in summer: notice the summer "uniforms".

Photo of the small minelayer Pasman: she had 30 meters of length and 142 tons of weight, 9 knots of speed and 30 crewmembers (had 28 at the time of capture). She was armed with a gun of 47mm and from 20 to 34 naval mines.
Even if still not officially part of the Ustasha Navy (she was going to be), Pasman was the largest enemy warship lost due Partisan surface naval action and the most important due classification.

3 January 1944
Patrol boat PC-1 Jadran and PC-3 Skampo attacked the enemy transport ship Slavija, but she managed to escape.

8-9 January 1944
During the night, a patrol boat reported to have captured an enemy motor boat. Still unconfirmed claim with poor details.

9 January 1944
First German motor torpedo boat raid: S-36 and S-55 captured 2 transport boats (carrying fuel and ammunition) and scuttled them with charges.

10 January 1944
German motor torpedo boats S-36 and S-55 score a third victory: the partisan transport boat Marija was seized. However, the following day the prize was sunk by a British air attack that sunk also S-55 and damaged S-36.

16 January 1944
Two German assault boats sunk 2 transport boats.

19 January 1944
Four German assault boats sunk 2 transport boats.

On the same day,
German sources report the loss of an unidentified landing craft during a landing at Hvar Island. She stuck an anti-tank mine buried under sand, killing 21 soldiers. Identity is unclear but she was possibly a smaller assault craft (and not a larger MFP or Siebel type landing craft).

24-25 January 1944
Patrol boats PC-1 Jadran and PC-3 Skampo attacked the enemy armed tug Costante , that was grounded.
The enemy crew surrendered without resistance and the Costante scuttled with explosive.

8-9 February 1944
During the night, German assault landing boats I-72, I-73 and I-106 ambushed and captured the gunboat NB-10 Sloga and small patrol boat PC-66 Proletar, Sloga was later sunk by Germans.

20 February 1944
Gunboat NB-9 Biokovac accidentally rammed and sunk by an Allied British destroyer. The whole crew saved.

27-28 February 1944
Patrol boats PC-2 Makola and PC-3 Skampo attacked and captured the transport boats Maria Jose and Haraelis . They were loaded with troops and the Germans lost 121 men (few killed and all the rest captured).
The German KTB say that one of them (described as "motor sailing vessel") was towing the other one: they claim there were 220 German soldiers (but that's probably a typing mistake): 12 were reported killed during the action and all the other captured (24 were wounded).
It seems that the partisans later scuttled both the targets.

Photos of PC-2 and PC-3: they scored together an important double victory.

28 February 1944
Patrol boat PC-22 Streljko captured the transport boat Giuseppe Cesario .

29 February 1944
Gunboat NB-8 Kornat was damaged by Allied friendly-fire from British gunboats.

9-10 March 1944
Two British motor torpedo boats accidentally sunk the small patrol boat PC-59 Lapad in a friendly-fire accident.

17-18 March 1944
During the night, German motor torpedo boats S-36 and S-61 sunk with gunfire the gunboat NB-2 Koca. Unclear if the gunboat returned fire but there is no report of German damage or human losses, German sources does not speak about prisoners.

18 March 1944
Gunboats NB-1 Krava and NB-6 Napredak with the patrol boats PC-2 Macola and PC-4 Junak ambushed and captured the German assault boat KJ-10 (Sturmboot-42 type).

Photo of the captured KJ-10: she will be re-named PC-75-I Annie and her fate it's unclear. Most of the source list her as sunk due friendly fire from Allied aircraft on 12 April 1944.

20 March 1944
Gunboats NB-1 Krava and NB-6 Napredak sunk by German air attack

23 March 1944
Small patrol boats PC-5 and PC-70 Mandina sunk by air attack

6-7 April 1944
Patrol boats PC-21 Marjan and PC-22 Streljko attacked and captured the armed boat San Antonio

7-8 April 1944
Patrol boats PC-21 Marjan and PC-22 Streljko attacked the motor sailing boats A-91 and A-302 but caused no damage.

12 April 1944
According one source, the captured boat KJ-10 was going to be commissioned as small patrol boat PC-75-I, when she was sunk by friendly fire from Allied aircraft. Other sources say it was re-named PC-75-I Annie , and was sunk not on April but on 12 September 1944 for the same causes: this same source say that existed a second PC-75-II Annie that survived at war.

21 April 1944
Gunboat NB-7 Enare-II accidentally collided with NB-8 Kornat and heavily damaged. The unit self-sunk to prevent the capture by enemy. The loss occurred during the successful partisan landing operations in Mljet and Korcula Island (successful).

Photo of NB-7.

22-23 April 1944
Patrol boats PC-21 Marjan and PC-22 Streljko attacked and captured the transport boats Giuliana and Emilia.

Photos of PC-21 and PC-22: they had already captured together an armed boat during the night between 6 and 7 April.

27 April 1944
The crew of the patrol boats PC-3 Skampo and PC-4 Junak attacked from the shore and forced to surrender the German anti-partisan ship Anton (a former Italian anti-partisan armed ship). She will be turned into the larger Partisan gunboat: NB-11 Crvena zvijezda (24 meters of length and 180 tons of size, weapons included also 1 gun of 88mm in addition to 37mm and 20mm).

Photo of NB-11 in Partisan Navy.

1 May 1944
The partisan small boat Proletar scuttled by her crew after an attack by Italian (R.S.I. fascist puppet’s state) anti-partisan ship NAP-24 and MB-9.

10-11 May 1944
During the night, German motor torpedo boats S-30, S-36 and S-61 sunk the hospital ship Marin II (250 tons): 59 wounded people died, including a German officer POW.

11 May 1944
Gunboat NB-4 Topcider was damaged by friendly fire Allied air attack. The boat later converted in hospital-boat as BB-4 Topcider, having up 24 beds for wounded.

Photo of NB-4.

31 May 1944
Small patrol boat PC-76 "MC-22" captured in harbor by enemy assault forces. 3 sailors were killed.

31 May – 1 June 1944
After the success scored sinking the hospital ship Marin-II, German motor torpedo boats S-153, S-155, S-156 and S-158 engaged in another raid. They ambushed a convoy sinking the three partisan transport boats Palma, Sokol and Sloga, and two other smaller boats. German sources claimed one or two additional victories (not confirmed) including a “small tanker”. A high number of prisoners because the boats were full of passengers: 159 Partisans, Italians and British advisors, 1 American pilot, 37 women and 5 children.

1 June 1944
Germans achieved a repetition of the previous success: motor torpedo boats S-153, S-155, S-156 and S-158 ambushed a second convoy. Partisan transport boat Mali Ante and two other smaller boats sunk, once again a high number of prisoners: 77 partisans, 2 British advisors, 50 women and 24 children.

1-2 June 1944
Battle of Blitvenice
During the night, the German motor torpedo boats S-153, S-155, S-156 and S-157 were once again on raiding mission but encountered the partisan gunboat NB-8 Kornat.
S-156 moved to the side of the gunboat, pretending to be an Allied boat to trick the partisans, but as soon as a German sailor boarded the gunboat, he was recognized and knocked out. A close-quarter gunfight erupted; involving the gunboat and S-155 and S-156 (the other pair was not directly involved). Both the German motor torpedo boats were damaged: S-155 suffered a number of hits while S-156 had two different fires. NB-8 Kornat suffered minor damage but achieved a good success because repelled the German attacking group, preventing further losses.
During the fight Partisans suffered 9 wounded, Germans suffered 11 wounded and 1 captured (the sailor that boarded the gunboat).
Partisans wrongly claimed to have damaged all four the enemy boats, however Germans clearly stated that only S-155 and S-156 were damaged in action: on their part Germans reported to have encountered a proper metal gunboat (while NB-8 clearly was not, being a former fishing boat converted, like most of partisan units).

Photo of NB-8

3 June 1944
NB-3 Jadran claimed an enemy aircraft shot down close Brac. It is a still an unconfirmed claim: if confirmed it was the only partisan naval anti-aircraft success.

12 June 1944
11 Croat crewmembers (including an officer) of the “Ustasha” old torpedo boat T-7 defected to partisans and discussed plans to organize the defection and seizure of the warship.However, Germans realized the danger and replaced the crew of the torpedo boat to prevent this defection.
Twelve days later the British motor torpedo boat MTB-670 and motor gunboats MGB-659 and MGB-662 attacked and destroyed her.

22 June 1944
Partisan launch B-4 accidentally sunk by Allied friendly fire from gunboats.

28 July 1944
Gunboat NB-8 Kornat was accidentally grounded and the crew set her afire to prevent enemy capture.

29 July 1944
Patrol boats PC-2 Macola, PC-4 Junak and the small one PC-71 Sv.Friz captured the armed transport ship Felice.

5-6 August 1944
During the night, patrol boat PC-22 Streljko faced in battle the two German minesweeping boats R-15 and R-16: there was a gunfire battle that caused no damage on both sides (even if Germans claimed to have scored hits on the partisan boat). It was effectively a rare gunnery fight between Partisans and properly rated Germans warships, but differently from the Battle of Blitvenice it caused no harm.

Photo of R-16

22 August 1944
Small Ustasha patrol boat PT-79 (just 8 tons and 1 machine gun) defected to partisans.

29 August 1944
Small patrol boat PC-47 Sv.Nikola-I was sunk by enemy ground mortar fire with 1 killed and 4 wounded.
According some sources it was also sunk PC-46 Sv. Juray, but that's probably wrong.
Also could have been damaged PC-45 Batos but it's unconfirmed.

5 September 1944
Patrol boat PC-53 Zora reported to have fought a gunfire battle against an enemy unit. She possibly clashed with an armed Ustasha boat (there are no clues about German involvement).

9 September 1944
Crew of the Ustasha riverine monitor Sava scuttled the ship and defected to partisan. Sailors accomplished the feat while fascist officers slept in the nearby Slavonski Brod city.
Often wrongly reported as lost due partisan ground artillery, the monitor was still effectively the largest enemy warship lost due partisan action (due joining of the sailors to the partisans).

The Ustasha operated also a second large riverine monitor (Bosna), lost on British air-dropped mine. Defection of crew was a remark on how unpopular was the fascist puppet’s authorities to the same Croat population.

14 - 15 September 1944
During the night, the German motor torpedo boats S-152, S-154 and S-158 captured the small patrol boat PC- 73 Pionir, that was later sunk. Germans claimed to have captured 10 partisans (this means Pionir had 6 passengers, because the crew was only 4 men).

22 September 1944
Patrol boats PC-2 Macola and PC-6 Sumar attacked the German hospital ship Bonn, without causing damage.

Photo of PC-6

27 September 1944
Three German assault crafts captured the small patrol boat PC-62 Ivo that grounded.

9 October 1944
Gunboat NB-13 Parizan and patrol boat PC-2 Macola sunk with gunfire the German armed boat Angelina. During the fight, Partisans suffered 2 wounded by enemy fire on the Partizan, while the Germans suffered 3 killed and 9 captured. Later the two partisan units attacked and captured another armed boat, the Adriana, without resistance. According the German evaluation, not less than "seven" gunboats attacked the targets. Interestingly, it appears it was the most significant action when Germans returned fire and partisans actively engaged and sunk an enemy target rather than performing the classing “boarding&seizure” attack.

Photo of NB-13: she took part at this fierce battle. Something of uncommon because most of German boats surrendered without fight.

14 October 1944
Gunboat NB-3 Jadran suffered very light damage by enemy mortar fire from coast.

23 October 1944
Battle of Maun Island
The biggest naval engagement of the War and only meeting between partisan units with enemy major warships.
The gunboat NB-14 Pionir and the patrol boats PC-2 Macola, PC-4 Junak and PC-24 Marjan fought a short battle against the German antisubmarine ships UJ-202 and UJ-208, (both were ex-Italian corvettes).
All the Partisan units suffered serious damages but there were only 4 wounded on Pionir.
The Partisans made a smoke screen and the group retreated.
Later, during the day, the two German units briefly engaged against British motor torpedo boats and suffered few human losses (3 killed, 11 wounded) and shelled a German small convoy of MFP armed barges exchanging them for other enemies, sinking the F-433 in a friendly-fire attack and damaging others.
Both the German ships would be later sunk during another battle against Allied warships.

Photo of Italian corvette Spingarda, later UJ-208. Partisan ships had no hope to fight against this kind of larger warships.

Photo of NB-14

20 November 1944
Gunboat NB-13 Partizan accidentally sunk by Allied British air raid.

14-15 December 1944
During the night, the small Ustasha patrol boat “Küsten-Schnellboote” KS-5, with Croat crew, defected and joined the Partisans. She will be renamed as small patrol boat PC-79. Other boats attempted to defect and join the partisans but they were prevented by Germans. On KS-5 there was also the flotilla commander.

17 December 1944
Partisan transport boat Lahor met a German assault explosive craft (of Linse-type) and captured her.
A German sailor shot, there are poor details but it appears that he was shot by partisans because attempting to detonate the craft or was shot by a German because refused to follow orders.

27 December 1944
Patrol boat PC-24 Marjan sunk into the Sv.Petar harbor a German assault landing boat.

15 February 1945
According some sources, the small patrol boat PC-55 Partizan-II sunk by accidental explosion of ammunition, but she probably just damaged.

24 February 1945
According some sources, the small patrol boat PC-27-II Andjeljko sunk by accidental explosion of ammunition with 1 killed, but it's unconfirmed by other sources.

1 April 1945
Gunboat NB-11 Crvena zvijezda sunk by mine. 22 sailors were killed (of 28). She has been the larger NB gunboat of the Partisan fleet. The gunboat was former anti-partisan ship “Anton” and one of the biggest prizes captured by partisans: she turned the largest and most armed ship in the flotilla (including 88mm gun), but while good for propaganda purposes, her size was not likely a good factor compared to the faster and smaller boats. NB-11 Crvena zvijedza was the only partisan warship lost due mine, because of her larger frame.

Photo of Marshal Tito visiting the gunboat.

Photo of the 88mm gun: a unique weapon among partisan boats.

1 May 1945
While this text doesn’t include victories scored by partisans with ground artillery against naval target, this is reported due its record.
Partisans shelled with mortar fire and sunk in Trieste harbor the German motor torpedo boat S-157: effectively the most important properly-rated German warship lost by partisan action (minelayer Pasman lost during undetermined ownership status).

On that day, German forces scuttled a number of warships in Trieste to prevent capture.
Two German MFP landing crafts seized in Trieste by partisan (apparently only ground forces): F-1168, F-1169 and two Italian MZ-713, MZ-717 (identical to MFP)
All four vessels, plus a fifth one delivered as war repairs by Italy, become the core of Yugoslavian post-war amphibious force and the basis for the Yugoslavian designed and built DTM class (active until the downfall of Yugoslavian socialist republic!).

3 May 1945
During the liberation of Pula, Partisan forces captured the Italian fascist (RSI) midget-submarine CB-20.
The small vessel was immediately renamed P-901 Malisan, however there was little to no time to actually prepare the small vessel for combat, she eventually joined the post-war Yugoslavian Navy in 1948 after overhaul. Effectively the boat was intergrated in the partisan Navy during the war but could not saw service.
She proved important for post-war training and development of midget submarines.

Submarine preserved in Croat museum. In 2010 the hull number has been changed into "CB-20", a rightfully questioned choice because the midget-submarine historical value was indeed her early cold war service as training for naval special operations. Moreover, even if it was just for few days and never obtained an operative status, PC-201 Malisan was the solely ever “partisan submarine”!

5 May 1945
Patrol boat PC-8 Udarnik was the first unit to enter into the Trieste's harbor.

PC-8 was a former German assault I-boat, given by Allied.


It’s interesting to know that during the last and most active phase of the naval war, Yugoslavian units operated from the Vis island.
Into the island were moved (during 1944) the Tito's headquarters, it was built also an airfield and two harbors for the ships
At Vis there were also British ships and soldiers (for an amount of 1000 Allied and 2000 Partisans)
British gunboats from Vis Island had sunk or captured 13 German supply boats.
British motor torpedo boats scored other victories, but they focused more on fighting larger warships or convoys of armed barges.
The Canadian captain Thomas G. Fuller directly confirm close collaboration and the presence of Yugoslavian partisans into his boats, reporting about a 400 tons schooner was captured with its whole cargo : the schooner's crew surrendered without resistance thanks the " blood-curling threats uttered with loud hailer by the Yugoslav partisan who manned the MGB's "
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Defected to the U.S.S.R.: 20 Feb 2010, 11:57
Resident Admiral
Post 11 Feb 2011, 11:12
An interesting add .. --edit-- (added to the list).
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Defected to the U.S.S.R.: 06 Dec 2009, 23:17
Post 29 May 2011, 02:48
Excellent,thank you!
I'm surprised with how active our Partisan Navy was during the WW2.

Do you by any chance have info on the combat record of the Yugoslav RAF squadron?
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Defected to the U.S.S.R.: 20 Feb 2010, 11:57
Resident Admiral
Post 30 May 2011, 13:03
EDIT: it was basically copy-posted data from another source (will link it, if needed).
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Defected to the U.S.S.R.: 06 Dec 2009, 23:17
Post 30 May 2011, 13:18
Thank you very much.
Do you maybe have some info on naval activity in the Adriatic/Ionian sea during the First World War?
Soviet cogitations: 311
Defected to the U.S.S.R.: 20 Feb 2010, 11:57
Resident Admiral
Post 31 May 2011, 11:28
Page for Adriatic naval war in WWI: viewtopic.php?f=149&t=51079
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Defected to the U.S.S.R.: 06 Dec 2009, 23:17
Post 02 Jun 2011, 13:59
Thanks for your reply.
It'd be excellent if you could just list the most important successes and defeats in the Adriatic during the WW1.
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Defected to the U.S.S.R.: 25 Nov 2011, 17:58
New Comrade (Say hi & be nice to me!)
Post 25 Nov 2011, 18:00
Do you have any information on the Italian N.A.P or V.A.P anti partisan boats that operated 1942-43?

Dave G
The PT Dockyard
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Defected to the U.S.S.R.: 20 Feb 2010, 11:57
Resident Admiral
Post 26 Nov 2011, 00:03
-- added the list from Yug. source-
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Defected to the U.S.S.R.: 20 Feb 2010, 11:57
Resident Admiral
Post 12 Dec 2011, 16:25
ptdockyard wrote:
Do you have any information on the Italian N.A.P or V.A.P anti partisan boats that operated 1942-43?

Dave G
The PT Dockyard

Hi Again !! As requested here there is a little list of Partisan actions against Italians (including NAP and VAP)

13.july- Montenegrin uprisers attacked 2 motor sailing boats(MSB) 12 italian soldiers were killed, 13 wounded
21.august- steam ship Niko Matkovic damaged near Split
6.october- SS Palermo set on fire and damaged
13.october- minelayer Vergada damaged with planted explosive
September-december minelayers Sokol and Kobac, destroyer Split, seaplane tender Zmaj and yachts of city`s commander and governor of Dalmatia damaged in sabotages.

24.january- MSB Merkur captured in Gradac during attack on local Gendarmerie station
12.february- ship Skenderbeg captured and sunk at Skadar`s lake
4-5. may- 2 ships for channel cleaning sunk in Neretva delta, 2 partisans were captured and later shot
23.may- using fishing boat partisans captured MSB Mira near Makarska
1-2. july- near village Kudinovici(Peljesac peninsula) sailing boat was attacked, Italian officer killed, soldier wounded
8.july- in Postire partisans raided motor ship Marin II, 3 Ustasha organisers and Homeguard officer arrested
14.july-from the shore near Tiha vala(Brac island) was captured MSB that sailed on the line Milna- Supetar, from the ship was taken ammunition and weapons that belonged to gendarmerie station Milna, attackers were 2.platoon of Brac partisans
18. july- Primorska company captured and sunk motor boat that held line Sibenik –Skradin
20.july-SS Issa(ex Vis) captured and sunk in Zivogosce near Makarska
26.july-arrested civilians from Iz island attacked Italian guards on MSB Sofia, most if not all guards killed, ship was captured and civilians later joined partisans(Iz battalion of 2.Dalmatian brigade)
11.august- using small fishing boat partisans captured MSB Dux near cape Proizd (Korcula island)
13.august-MSB Mucenica attacked near cape Binusa, Murter channel
13.august- in Bol(Brac island) captured transport ship with wine
August- at Brac island were captured two boats, one with grain
September-tug boat attacked near Trogir, attackers were from Primorska company
20.september- Hvar partisans captured MSB Pravedan and 2 smaller boats(Oskorusica bay)
26.september-partisans of Primorska company attacked from the banks of river Krka motor ship with first company of battalion Vespri,1 soldier was killed, 9 wounded
19.october- Biokovo partisans attacked with small fishing boat 2 MSBs near Makarska
11.november- Biokovo partisans captured MSB Darko near Makarska
18.november-Biokovo partisans captured with small fishing boat one MSB and confiscated cargo
8.december-Biokovo partisans attacked minelayer near village Podgora
8.december-Biokovo partisans captured near village Zivogosce MSB with wood
22.december-near village Drvenik Biokovo partisans attacked 3 ships that carried Italian soldiers that belonged to Gradac garrison, 3 soldiers were wounded
24.december- Biokovo partisans captured MSB with washing soda
26.december- Biokovo partisans captured ship with coal
31.december-using two small fishing boats Biokovo partisans captured MSB Istok, Madre Giovanna, Otac Vladimir, Zdravlje and Sveti Ante

1.january-using small fishing boat Biokovo partisans captured MSB Evropa and attacked MSB Sveta Eufemija
4.january- using small fishing boat Biokovo partisans attacked MSB San Spiridone
6.january-Biokovo partisans attacked from the shore armed tug boat Poderoso
9.january-Biokovo partisans attacked from the shore armed tug boat Lilibeo
10. january-Biokovo partisans attacked from the shore MSB Airone
18.january-partisans attacked MB23 near Korcula island
22.january-using small fishing boat partisans captured and burned MSB Giuditta
27.january-partisans stoped and returned 6 boats with sand, Sv.Ana channel(Sibenik)
2.february-SS Ulbo was attacked from shore near Brbinje(Dugi otok), 1 soldier killed, 2 wounded
7.february-antipartisan ship NAP 2 attacked, killed commander of Metkovic port
17.february-M21 attacked near Marina, Trogir
20.february-Biokovo partisans damaged flying boat Cant Z 501 near Makarska
23.february-MSB Antoinetta B. Captured in Brac channel
25.february-SS Sipan attacked with artillery(AT gun I presume) near Makarska
28.february-Armed tug boat Poderoso attacked with artillery near Makarska
1.march-using artillery partisans captured MSB Vicenzo near Makarska
5.march- MSB Antonio C. Attacked near Rogoznica
15.march- SS Curzola attacked in Neretva chanell
22.march- with small fishing boat partisans captured and sunk MSBs Maria Luisa and Renato near Makarska
24.march-partisans captured near cape Kabal(Hvar Island) MSB Sv. Nikola
2.april- MS 25 attacked at Zrmanja mouth
14.april- using small fishing boat partisans attacked convoy in Neretva channel and captured motor ship Africano
30.april- antipartisan ship NAP 24 was attacked during patrol near Trogir
2.may-MSB Velika Gospa attacked with artillery near Drvenik
4.may- antipartisan ship NAP 19 was attacked during patrol near Hvar island
13.may- antipartisan ship NAP 9 was attacked during patrol near Hvar island
13-16.may-MB 9 attacked near Hvar island
26.may-2 crewmembers of ship Airone were taken prisoner in Dugi rat
27.may-using small fishing boat partisans attacked convoy on route Korcula-Split
7.june-flying boat attacked near Celice island, 4 wounded
12.june VAP 36 attacked in Velebit channel
13.june-armed fishing boat attacked near Trogir
19.june- from the shore near Makarska partisans attacked ship, one wounded was reported
27.june-6 partisans captured fishing boat, Korcula island
28.june- motor boat attacked with rifle fire,Neretva delta
28.june-antipartisan ship VAP 19 attacked from the coast
4.july-ND 185 attacked from the shore of Dugi otok
7.july-small minehunter Nassareno attacked in Velebit channel with rifle and MG fire
11.july-from the shores of Neretva river SS Arbo attacked, 8 soldiers WIA
12.july-in Zarace bay(Hvar island) VAP 17 attacked,1 soldier killed
21.july-with small fishing boat captured MSB, Veli Ante island
28.july-in Sv.Nikola bay(Murter island) were attacked 3 MSB, 2 captured
30.july-in Velebit channel partisans attacked VAP 22, 2 soldiers wounded
30.july- near Pasman island was attacked SS Solin
24.august-ship with Italians and Cetniks attacked in Sv.Ante channel, 11 KIA, 14 WIA
2.september- near Hvar attacked armed tug boat
During first week of september two ships sabotaged in Trogir

The ONLY naval Italian success against Yugoslavian ships at this time was that:
October 21, 1944 – April 12, 1945
"6 October 1943 torpedo boat Missori captured MSB that carried weapons from Krk to Losinj island "
But that's quite strange, because the same day the Missori is reported as "self-damaged by Italian crew" to evade capture by Germans. It was already part of the German navy as TA-22, but had still Italian crew, days before took part at a convoy and another ex-Italian unit (Pilo) saw an anti-German uprising and the escape to South Italy.
Soviet cogitations: 311
Defected to the U.S.S.R.: 20 Feb 2010, 11:57
Resident Admiral
Post 11 Jun 2014, 10:17
Made integration of data. Grammar correction, cleaning and addition of photos.
Soviet cogitations: 311
Defected to the U.S.S.R.: 20 Feb 2010, 11:57
Resident Admiral
Post 28 Jul 2015, 14:57
UPDATE: Re-added photo of "Pasman".
Soviet cogitations: 311
Defected to the U.S.S.R.: 20 Feb 2010, 11:57
Resident Admiral
Post 13 May 2016, 12:04
UPDATE:Added more photos and partisan losses due enemy surface action including transport boats.
User avatar
Soviet cogitations: 11879
Defected to the U.S.S.R.: 06 Dec 2009, 23:17
Post 14 May 2016, 23:28
You should try to sell this to someone in Italy to make a book.
Soviet cogitations: 311
Defected to the U.S.S.R.: 20 Feb 2010, 11:57
Resident Admiral
Post 15 May 2016, 09:13
I do not care honestly xD My work is based on other works (so it should be unpolite) and it's primary focus is to spread knowledge of how communist forces fought on sea ^^
PS: I plan to make a "Greek Partisan Navy in WW-II" too, but there is terrible lack of data and sources.
Soviet cogitations: 311
Defected to the U.S.S.R.: 20 Feb 2010, 11:57
Resident Admiral
Post 30 Apr 2018, 09:29
UPDATE: integrated the events in 1942 and 1943 with use of fishing boats (and early patrol boats) by Partisans against Italians. Added a couple of Partisan losses in 1944 including one (1/May/1944) by R.S.I. (italian fascist republic) NAP-24 anti-partisan ship.
Soviet cogitations: 311
Defected to the U.S.S.R.: 20 Feb 2010, 11:57
Resident Admiral
Post 25 Nov 2018, 11:55
2) Properly identified a new victory: 17/18 December 1943 (shared with British MTB). Thanks cross-reference with the HMA German archive of landing crafts
3) Inserted naval secondary (but interesting) events: scuttling of "Sava" monitor on September 1944, seizures in May 1945.
4) Few extra minor info added for some events.

1) Thanks an info from site a brief document (author Bojan Mirosavljev) indicate patrol boat "Pionir" as responsable for the successful seizure attacks on 31/Dec/42 and 1/Jan/43
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