NAVYPEDIA

Photo

Romolo 1943  

Ships

Name	No	Yard No	Builder	Laid down	Launched	Comp	Fate
Remo			Tosi, Taranto	9.1942	28.3.1943	6.1943	sunk 15.7.1943
Romolo			Tosi, Taranto	7.1942	21.3.1943	6.1943	sunk 18.7.1943
R3			Tosi, Taranto	3.1943	7.9.1946	---	delivered incomplete 11.1946, BU
R4			Tosi, Taranto	3.1943	30.9.1946	---	delivered incomplete 11.1946, BU
R5			Tosi, Taranto	3.1943	---	---	cancelled 1.1944
R6			Tosi, Taranto	3.1943	---	---	cancelled 1.1944
R7			CRDA, Monfalcone	3.1943	21.10.1943	---	captured incomplete by Germany 10.9.1943 (UIT4)
R8			CRDA, Monfalcone	3.1943	28.12.1943	---	captured incomplete by Germany 10.9.1943 (UIT5)
R9			CRDA, Monfalcone	3.1943	27.2.1944	---	captured incomplete by Germany 10.9.1943 (UIT6)
R10			OTO, Muggiano	2.1943	12.7.1944	---	captured incomplete by Germany 9.9.1943 (UIT1)
R11			OTO, Muggiano	3.1943	6.8.1944	---	captured incomplete by Germany 9.9.1943 (UIT2)
R12			OTO, Muggiano	5.1943	29.9.1944	---	captured incomplete by Germany 9.9.1943 (UIT3)

Technical data

Displacement standard, t	1300
Displacement normal, t	2155 / 2560
Length, m	86.5
Breadth, m	7.86
Draught, m	5.34
No of shafts	2
Machinery	2 Tosi diesels / 2 Marelli electric motors
Power, h. p.	2600 / 900
Max speed, kts	14 / 6.5
Fuel, t	diesel oil 200
Endurance, nm(kts)	12000(9) / 90(4)
Armament	3 x 1 - 20/65 Breda 1940 some incomplete boats: 3 x 1 - 20/65 Breda 1940, 2 - 450 TT (bow, 2)
Military load	600 t of dry cargo, liquid cargo
Electronic equipment	hydrophone
Complement	63
Diving depth operational, m	100

Standard scale images

Graphics

Project history

Transport submarines, specially designed for routes to Japan. Partially double-hulled. They had four watertight cargo holds with 610m³ total capacity. Maximal cargo weight was 600t. The defensive armament originally consisted of three AA MGs, already after submarines were laid down they received two 450mm TTs, however they were installed not on all subs. So, both completed submarines had no TTs.

Only two submarines of this class were completed.

R3 and R4 were taken by Italian Navy 14.11.1946 in 77% and 71% of availability and were broken up. Building of R5 and R6 actually did not begin, the order was cancelled 1.8.1944. Remaining 6 submarines were captured by German troops at Monfalcone (R7, R8 and R9) and La Spezia (R10, R11 and R12) in September, 1943. They were renamed UIT4, 5, 6, 1, 2 and 3 respectively. Germans had tried to complete these boats, they even have been launched, however it was not possible to complete any of them. Three incomplete submarines at Monfalcone were sunk by Allied aircraft: UIT4 25.5.1944, UIT6 20.4.1944 and UIT5 16.3.1945. Remaining were scuttled by Germans 24.4.1945 at La Spezia (UIT1 and UIT3) and Genoa (UIT2). R11 and R12 were raised in 1946 and used as floating oil tanks GR522 and GR523.

Modernizations

none.

Naval service

 Remo was sunk 15.7.1943 in a bay of Taranto by British submarine United. Romolo was sunk 18.7.1943 near Augusta by British aircraft.