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As one of ten corvettes approved in March 1941 to meet the ever-increasing
responsibilities of the Canadian Navy, Regina was built with
great urgency. Laid down in March, 1941, she was one of the first
built with both an extended forecastle and an improved bridge,
lessons learned from hard experience with the earlier corvettes.
Her mast, however, was still before the bridge, a nuisance corrected
in later refits for most corvettes. In December 1941 she had
to be towed to Halifax for completion to avoid being frozen in
for the winter at Sorel. She commissioned there on 22 January
1942.
Defects plagued her during
many months of her early service. She served briefly in the Halifax
Force then in Western Local Escort Force, seeing several convoys
safely outward and inward-bound and rescuing twenty-five survivors
on one occasion. She also operated on the Halifax-Boston run
for a period, identified with lucky convoys suffering
little or no loss while others before and after suffered heavily.
Four SC and HX convoys were part of her record where only one
straggler was lost.
In late 1942 the Admiralty
requested Canadian escorts to assist with Operation Torch convoys
in support of the North African invasion. Regina was one of seventeen
corvettes assigned, fitted with additional Oerlikon guns required
for anti-aircraft protection in the Mediterranean. In September
a new commanding officer was appointed, LCdr Harry Freeland,
RCNR, often known as Harry The Horse from his Atlantic
convoy escort days and the adoption of Damon Runyan character
names by the corvette CO's. She started passage to England with
Convoy SC-107 but had to return due to condenser problems, and
sailed on 7 November with SC-108. This was perhaps fortunate,
as SC-107 was one of the worst convoys, losing fifteen vessels
to U-boat packs, while SC-108 was not seriously attacked.
Although the Torch landings
had been made by the time Regina arrived, follow-on convoys were
still required for supplies for the continuing battle. In December,
1942 Regina was part of the escort for KMS-5 to Gibraltar but
due to damage in extremely rough weather wherein she lost her
asdic dome, she had to return to Londonderry for repairs. On
25 January she was one of eight corvettes escorting KMS-8 to
Gibraltar. Again the weather was severe: an RN trawler-minelayer,
HMS Corncrake, foundered and was lost with all hands. Weather
was as often the enemy as Germans or Italians.
This convoy entered the
Mediterranean on 5 February. Regina was astern of HMCS Louisburg
when that ship was sunk by an aerial torpedo on the 6th (See
Chapter 23). There were several other air attacks and submarine
alarms and excursions during the day. On the evening of 7 February
Regina and HMS Rhyl, a Bangor class minesweeper, were assigned
to escort a ship of KMS-8 from Algiers onward to Bone Algeria.
There is some evidence that this convoy consisted
of two ships, but there is only reference to the elderly little
ex-coal carrier ss Brinkburn. She was evidently carrying 1,500
tons of aviation fuel in cans in her holds. The crew had been
overcome with petrol fumes from leaking and spilled cans and
several men were replaced by an eight-man RN party from the trawler
HMS Coriolanus for the short voyage to Bone from Algiers.
At 2310 Regina was 4,000
yards on the port bow of the convoy and Rhyl in the corresponding
station to starboard. It was a quiet, dark night with stars out
but no moon. Regina picked up a faint contact on her radar at
a range of 6,200 yards, bearing 0300. Freeland altered toward
and went to twelve knots. Radar contact was lost in five minutes
as the submarine dived but at 2317 they obtained an asdic contact
at about 1,000 yards. At full speed ahead the target was closed
to 300 yards, moving left. At 100 yards contact was lost and
a single ten-charge pattern was dropped, using the range recorder
trace for time to fire.

While nothing seemed to
happen, at 2328 the spray and foam of the submarine surfacing
was seen, then the wash of her wake and her hull were sighted,
going away. A stern chase developed across the dark sea; the
bridge Oerlikons immediately fired on the submarine and she returned
fire with 12.5mm Breda machine guns. The Oerlikon tracer allowed
the Regina?s 4-inch gun to find the target in the dark. Eight
rounds were fired and the submarine was struck at the base of
her conning tower. This gunnery went on for some five minutes,
then the fleeing submarine ceased firing and some of her crew
started to jump into the sea. Those that remained on the casing
were crying for surrender or help as Regina charged up. Freeland
had planned to ram her but, when he saw the crew on the casing
by a signal light shone on the boat, he stopped nearby. It was
only then they realised their captive was an Italian submarine.
The ship carried out a
precautionary sweep around the area to ensure there were no more
submarines about. Then a boarding party under Regina?s 1st lieutenant,
Lt F.B. Marr, was put on board by boat. At first it was thought
the submarine could be kept afloat and a tug was requested. At
0345 the tug HMS Jaunty arrived and a tow was attempted. By 0500
it was realised that the submarine was sinking and the boarding
party had to jump into the sea as she sank at 0515.
Her own people and all
the twenty-seven survivors of the Italian crew were rescued by
Regina, seven of the Italians wounded, two seriously, but most
overjoyed to be saved and out of the war. They were taken into
Bone by 1020 that day. The ship received numerous congratulatory
messages and a few months later awards were made official: Harry
Freeland received a DSO, SLt Roddick B. Thomas a DSC; CERA Allen
Hurst and L/S Stan Heywood, the senior asdic rating, received
DSMs; Mention in Dispatches were awarded to the coxswain, CPO
Jack W. Winn, ABs Joe Saulnier and Trevor Martin (who was the
4-inch gun captain), and to OS Vernon Cavanaugh.
  
Avorio was one of thirteen
submarines of the 600-series Platino class, 710 tons, commissioned
on 25 March 1942. One of her war patrols had involved her in
attacks on ships of Operation Pedestal in August 1942 for the
relief of Malta, where she had had no success. In February, 1943
she was operating out of a base at Cagliari, Sardinia on her
sixth war patrol, although with no sinkings to her credit. Her
new Co on this patrol was Tenente (Lieutenant) Leone Fiorentini.
Fiorentini had sailed from
Cagliari on 6 February in company with the sommergibili Gorgo
and Platino, bound for Cape Bougaron, North Africa. He had sighted
a convoy the next morning but depth charges from an MTB forced
him to crash dive. Having remained submerged during daylight
on the 8th, he had to surface that night to charge his batteries.
Avorio was still on the surface when detected by Regina, and
in the dark of night, was dangerously close to the corvette before
the Italians knew they were sighted. She crash-dived to 200 feet
and stopped. The first depth charges were close and caused water
to enter through distorted plates in the pressure hull, creating
trimming problems. The next two explosions from the pattern caused
further flooding in the control room and ballast tanks. When
he surfaced, Fiorentini found his forward torpedo tubes were
distorted and useless, and when he tried to escape on the surface
he found the helm jammed and the boat could only move in a circle.
It had been an excellent urgent attack by Freeland's team.
The gunfire from Regina
had then been so effective that the captain, two other officers
and sixteen ratings had been killed. The 4-inch shells had torn
up plates and holed the conning tower. The corvette?s only minor
casualty was AB Henry Mortimer, who had a bullet scrape his rib
cage.
Regina remained in the
Mediterranean theatre for another month, during which she brought
in the Portuguese vessel Nyassa which was trying to run the blockade
from South America to Portugal and then transship her cargo to
Germany. She then escorted an ancient side-wheeler tug bringing
a damaged ship to Gibraltar.
Sources
Fraccaroli, Italian Warships
of WWJI, p. 143. Macpherson & Milner, Corvettes of the RCN,
pp. 127, 131.
Paquette & Bainbridge,
Honours & Awards. Pollina, Cocchia & Bertini, I Sommergibili
Italiani 1895-] 968, pp 178-182.
Schull, Far Distant Ships,
pp. 157-158. Smith, Pedestal, pp. 110-111.
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