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FIGHTING SHIPS OF THE WORLD
CANADA
AIRCRAFT CARRYING SHIPS
MAGNIFICENT light aircraft carriers (1948/1957, 1957)


Photo



Bonaventure 1957

Ships


Name No Yard No Builder Laid down Launched Comp Fate
Magnificent CVL21, 1954- RML21   Harland & Wolff, Belfast, UK 29.7.1943 16.11.1944 21.5.1948 to UK 6.1957 (Magnificent)
Bonaventure (ex-Powerful) RML22, 1957- RRSM22, 1960- CVL22   Harland & Wolff, Belfast, UK 27.11.1943 27.2.1945 17.1.1957 decommissioned 7.1970, BU 1971


Technical data


Displacement standard, t

14000

Displacement full, t

17780

Length, m

192.0 pp 211.8 oa

Breadth, m

24.4

Draught, m

7.01 deep load

No of shafts

2

Machinery

2 sets Parsons geared steam turbines, 4 Admiralty 3-drum boilers

Power, h. p.

40000

Max speed, kts

25

Fuel, t

oil 3000

Endurance, nm(kts)

12000(14)

Armament

CVL21: 19 x 1 - 40/60 Mk 3, 6 x 4 - 40/39 Mk 7, 37 aircraft (Seafire, Firefly, Sea Fury fighters)

CVL22: 4 x 2 - 76/50 Mk 33, 4 x 1 - 47/40 Hotchkiss Mk 1, 24 aircraft (F2H-3 Banshee fighters, TBM-3S/W Avenger ASW planes)

Electronic equipment

CVL21: type 79B, type 281B, 6x type 282 radars, type 144 sonar

CVL22: SPS-10, SPS-12, SPS-8, 2x Mk 34 radars

Complement

CVL21: 1300

CVL22: 1370



Air group


Year Fighters ASW planes Helicopters
1948, Magnificent ~12 Firefly FR.1/FR.4/AS.5, ~12 Sea Fury F.10/FB.11 --- ---
1957, Bonaventure 16 F2H-3 Banshee 12 CS-2F Tracker ---
1963, Bonaventure --- 8 CS-2F Tracker 13 HO4S-3


Standard scale images


<i>Magnificent </i>1957
Magnificent 1957
<i>Bonaventure </i>1960
Bonaventure 1960
<i>Bonaventure </i>1965
Bonaventure 1965


Graphics


<i>Bonaventure </i>1957
Bonaventure 1957


Aircraft facilities

 (fd - 5,131m², ha - 2,142m² / 11,355m³): Flight deck: 210.3x24.4m; hangar: 135.6x15.8x 5.3m. Two lifts: 16.5x10.4m, 6.8t. 1 catapult BH-III (6.4t plane was launched at 122 km/h). Aircraft fuel stowage: 341,000l.

Project history

The former Powerful was modernized between 1952 and 1957 and sold to the Royal Canadian Navy as HMCS Bonaventure. She was completed with an angled deck, but aircraft, radar and armament were supplied from the United States. Although similar to her sisters she had a distinctive appearance, with a tall lattice mast, a raked funnel and a big sponsons for her twin 76mm AA guns.

Protection

There were mantlets around aircraft torpedoes warheads rooms only. Their thickness was 10mm. Longitudinal watertight bulkheads covered the machinery.

Modernizations

1967, Bonaventure: - 2 x 2 - 76/50, SPS-8, SPS-10, SPS-12, 1x Mk 34 radars; + SPS-501 and one other Dutch radars; HO4S-3 Whirlwind helicopters were replaced by CHSS-2 Sea King ones.

Naval service

No significant events.

© Ivan Gogin, 2015