Bay grade frigate
The bay grade frigate (bay steep frigate, English: Bay-class frigate) is warship grade of the British naval frigate. Based on lock grade, is a derivation type of the air defense warship specifications that strengthened an antiaircraft weapon in exchange for an antisubmarine weapon [1]; [2] [3].
| Bay grade frigate | |
|---|---|
 | |
| Basic information | |
| Classification | Frigate |
| Operation person |  The British navy The Portuguese navy The Finnish navy |
| Placement on duty period | From 1945 to 1971 |
| Warship of the same type | 26 ships |
| 前級 | River grade |
| Associate same model warship | Lock grade |
| Next grade | 41 type (Leppard grade) 61 type (Salisbury grade) |
| Essential points | |
| Standard displacement | 1,600Ton |
| Load displacement | 2,420 tons |
| Full length | 93.57 m |
| Overall width | 11.76 m |
| Draft | 3.89 m |
| Boiler | Water-tube boiler *2 can |
| Main engine | Reciprocating steam engine |
| Pusher | Screw propeller *2 axis |
| The output | 5,500Horsepower |
| Speed | 20.25 knots |
| Fuel | 730 tons of heavy oil |
| Flying range | 7,000 nautical miles (at the time of 15kt cruise) |
| Crew | 157 people |
| 兵装 | ・*2 45-caliber of 10.2cm multi-launching anti-aircraft guns ・*2 56-caliber of 40mm multi-launching machine guns ・56-caliber of 40mm 単装機銃 *2 ・70-caliber of 20mm 単装機銃 *2 ・HedgehogAntisubmarine trench mortar*1 engine ・*50 depth bomb |
| FCS | ・Mk.VI range-finding pelorus ・AFCC shooting board |
| Radar | ・291 type early warning use ・It is for 293 type target capture ・It is for 285 type shooting conduct |
| Sonar | Sounding out Nobuyoshi (ASDIC) |
| Electronic warfare・ Countermeasure | Short wave direction detector (HF/DF) |
Table of contents
Origin
On the Black Swan grade loop and hunting grade destroyer that were constructed in the British navy from prewar days to cope with the needs increase of the escort ship with the outbreak of World War II, in addition, at first as coast escort ship flower grade Corbett subsequently as a sailing escort ship for river grade frigate, this cause pushed forward the building of the escort ship corresponding to the mass production rapidly in a lock grade frigate and the wartime corresponding to the large quantities building [2]; [3].
In in the future-based warship Committee of March 1, 1943 (Future Building Committee), the tactics, the staff officer duties section manager (Director of Tactical and Staff Duties Division, DTSD) assumed the injection to a war to Japan, and the drafting of the plan to redecorate river grade and the lock grade into an air defense warship was ordered. I pass, and coping to sky menace is because it was thought with insufficiency while it was estimated that I can deal by existing escort ship for the menace of the submarine enough in the Far East [3].
Staff officer requirements (TSD 2546/43) were made on April 26, 1943, but examination was repeated afterwards and was authorized as 改設計案 (TSD 3122/44) based on lock grade in June, 1944. Ordering was accomplished to change 30 lock grade which had been already placed an order for to the air defense warship in May, 1944. It is in this way book grade to have been constructed [3].
Design
The basic design became approximately more same as lock grade than the process mentioned above and, actually, was considered to redecorate it as an anti-submarine like the lock grade at the time of the need again. But the upper part structure is enlarged because a radar-related apparatus room takes the space [3].
For a radar, a 291 type radar and the 293 type radar for the early warning for the aim capture are equipped with. With the deployment of the 293 type radar, TIR (Target Indication Room) was established as an exclusive division of TIU-2 to utilize the aim information that I caught in this for shooting conduct directly. Because there was no room to establish the A.T.C. room (Aircraft Direction Room) although it was examined to hold an additional post of a radar picket warship, I was given up [3].
For 砲熕兵器, it was considered by the plan at first to assume 56-caliber of radar control-type 40mm multi-launching machine guns 主兵装, but if the 4 inches gun that I referred new 信管調定機 to is superior, I am judged and, as for by one, will post 45-caliber of 10.2cm gun (QF 4 inches gun Mk.XVI) to the bow tail in combination with multi-launching Takatsuno naval gun mount Mk.XIX. For a shooting conduct device, Mk.VI range-finding pelorus of the 285 type radar equipment and AFCC shooting board for the anti-water were equipped with. The range-finding pelorus of Naoko was developed as a product for スループ; with the Mk.VI for two uses pelorus for fleet destroyers do not have a technical relation [3].
In addition, two 56-caliber of 40mm multi-launching machine guns were carried for the Takatsuno machine gun which supplemented this and, for example, they added it to this in "エサード bay" and were equipped with 56-caliber of 40mm 単装機銃 two and 70-caliber of 20mm 単装機銃 two [3]. In addition, the number of the deployment of 70-caliber of 20mm 単装機銃 ranged from two engines to six, and there was the warship which was equipped with eight engines when it did not carry 40mm 単装機銃 again [1].
I was sent back to a hedgehog antisubmarine trench mortar same as river grade with the book grade whereas a skid antisubmarine trench mortar of the new development was carried with the lock grade for an antisubmarine weapon. But the ammunition burdens increase to 10 firing in volleys. In addition, the existing-type depth bomb was done with four depth bomb projection machines and number of depth bomb throwing down rail Article 2, the total deployment 50 [3].
List of warships of the same type
| Name of a warship | The launching | Afterwards |
|---|---|---|
| Big berry bay HMS Bigbury Bay | November 16, 1944 | For 1,959 years, I dismantle it as Portuguese navy "パチェーコ Pereira" in re-placement on duty, 1970 |
| Bergh head bay HMS Burghead Bay | March 3, 1945 | For 1,959 years, I retire as Portuguese navy "Al Valais's Cabral" in re-placement on duty, 1971 |
| Cardigan bay HMS Cardigan Bay | December 28, 1944 | The 1962 dismantling |
| Caernervon bay HMS Carnarvon Bay | March 15, 1945 | The 1959 dismantling |
| Cow sand bay HMS Cawsand Bay | February 26, 1945 | |
| エナード bay HMS Enard Bay | October 31, 1944 | The 1957 dismantling |
| Largo bay HMS Largo Bay | October 3, 1944 | The 1958 dismantling |
| It is moo a cam bay HMS Morecambe Bay | November 1, 1944 | For 1,961 years, I dismantle it as Portuguese navy "Don Francisco de Almeida" in re-placement on duty, 1970 |
| マウンツ bay HMS Mounts Bay | June 8, 1945 | For 1,961 years, I dismantle it as Portuguese navy "Vasco da Gama" in re-placement on duty, 1971 |
| パドストウ bay HMS Padstow Bay | August 24, 1945 | The 1959 dismantling |
| Pau lock bay HMS Porlock Bay | June 14, 1945 | For 1,964 years, I dismantle it as Finnish navy "Mattie クルキ" in re-placement on duty, 1975 |
| Cent オーステル bay HMS St Austell Bay | November 18, 1944 | The 1959 dismantling |
| Saint Bligh's bay HMS St Brides Bay | January 16, 1945 | The 1962 dismantling |
| Start bay HMS Start Bay | February 15, 1945 | The 1958 dismantling |
| トレマドグ bay HMS Tremadoc Bay | March 29, 1945 | The 1959 dismantling |
| ヴェリアン bay HMS Veryan Bay | November 11, 1944 | |
| White sand bay HMS Whitesand Bay | December 16, 1944 | The 1956 dismantling |
| Wide mouse bay HMS Widemouth Bay | October 19, 1945 | The 1957 dismantling |
| ウィグタウン bay HMS Wigtown Bay | April 26, 1945 | The 1959 dismantling |
| Dan drum bay HMS Dundrum Bay | July 10, 1945 | I dismantle it as a report warship "alert" in completion, 1971 on October 24, 1946. |
| ジェランス bay HMS Gerrans Bay | March 14, 1945 | I dismantle it as a report warship "surprise" in completion, 1965 on September 7, 1946. |
| Peg well bay HMS Pegwell Bay | September 24, 1945 | I dismantle it as marine research warship "Cook" in completion, 1968 in June, 1950. |
| Ruth bay HMS Luce Bay | April 12, 1945 | I am placed on duty as marine research warship "Dalrymple" on February 10, 1948. In March, 1966, I retire as Portuguese navy "Alfonso デ アルブケルケ" for re-placement on duty, 1,983 years. |
| Hahn bay HMS Herne Bay | May 15, 1945 | I dismantle it as marine research warship "Dan peer" in placement on duty, 1968 in May, 1948. |
| Thurso bay HMS Thurso Bay | October 19, 1945 | I dismantle it as marine research warship "Owen" in placement on duty, 1970 in August, 1949. |
References
- ^ a b Robert Gardiner (1980). Conway's All the World's Fighting Ships 1922-1946. Naval Institute Press. p. 60. ISBN 978-0870219139.
- ^ a b Yasuo Abe "World War II type frigate of the workhorse U.S. and Britain of the fleet guards," it is 84-87 pages in "world vessels" 514th, Kaito Corporation, September, 1996.
- ^ a b c d e f g h i Norman Friedman (2012). "Wartime Ocean Escorts." British Destroyers & Frigates: The Second World War & After. Naval Institute Press. ISBN 978-1,473,812,796.
Allied item
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