Submarine Radar & Passive Radiolocator (E27)
|Coastal Defense Ship||Destroyer|
|Light Cruiser||Torpedo Cruiser|
|Heavy Cruiser||Training Cruiser|
|Aviation Cruiser||Fast Battleship|
|Light Carrier||Standard Aircraft Carrier|
|Armored Carrier||Seaplane Tender|
|Submarine||Aircraft Carrying Submarine|
|Submarine Tender||Fleet Oiler|
|Repair Ship||Amphibious Assault Ship|
Installed on a submarine for scouting and surface reconnaissance purposes.
Equipped to the upper part of the bridge, a number of excellent waterproof telescopes, surface and air radars concentrated with a more useful high radar (E27) will try to detect threats at an early stage.
- It does not reduce maelstrom effects.
- April 2018 Ranking Reward for Top 20.
Characteristics of New Submarine Torpedo Mounts
Can be used together with new submarine torpedoes (Late Model Bow Torpedo Mount (6 tubes), Skilled Sonar Personnel + Late Model Bow Torpedo Mount (6 tubes) or Late Model 53cm Bow Torpedo Mount (8 tubes)) to trigger Torpedo Cut-In types that have higher damage modifiers than the usual Torpedo Cut-In.
|Torpedo Cut-In modifiers|
|Submarine Cut-ins||With Late Model Bow Torpedoes ONLY||1.75||2|
|Torpedo Cut-in||+ Any on the remaining slots||1.5||2|
The Navy E-27 Receiver (海軍「仮称電波探知機(逆探)」E-27受信機) was a Electronic Support Measure (ESM) Radar Warning Receiver (RWR) based on the Metox RWR brought back to Japan during the Submarine Dispatch Operations to Germany (遣独潜水艦作戦).
- Various Japanese submarines were equipped with German RWR's:
- On 6 August 1942, I-30 was fitted with Metox when she was moved to one of the U-boat pens in the Keroman Submarine Base, Lorient, France.
- On 20 August 1943, Metox was installed on I-8 by the tripulation of U-161.
- On 5 December 1943, I-29 was equipped with the Metox installed on I-8. Later on 14 February 1944, the tripulation of U-518 installs the newer Naxos and Wanze RWR's on her bridge.
- On 22 June 1943, I-52 was equipped with Naxos by the tripulation of U-530 before being sunk on the night of 24 June.
- On July 1943, Yamashiro was used to test a prototype version of the E-27 Receiver. The tests were met with success, thus 800 units were produced by Spring of the following year and 2,500 units by the end of the war.
- Prior to Yamashiro's tests, on 1 June 1943, Yukikaze was equipped with an RWR prior to the Battle of Kolombangara.
- The E-27 was equipped on the I-400-class and Ha-101-class submarines, among other vessels.
- Radar warning receiver (Wikipedia)
- Radiolocation (Wikipedia)
- 電波探知機 (Japanese Wikipedia)
- 海軍電波探信儀関連機材 - Yokohama Radio Museum (Japanese link)
- 電波探知機（逆探） - 海軍レーダー徒然草 (Japanese link)