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Yokosuka P1Y2-S Kyokko (Aurora)

Night-Fighter / Night-Intruder Aircraft

Yokosuka P1Y2-S Kyokko (Aurora)

Night-Fighter / Night-Intruder Aircraft

OVERVIEW
SPECIFICATIONS
ARMAMENT
VARIANTS
HISTORY
MEDIA
OVERVIEW



The Yokosuka P1Y2-S Kyokko was a night-fighter offshoot of the original P1Y2 medium bomber line - ninety-six were built to the standard during World War 2.
National Flag Graphic
ORIGIN: Imperial Japan
YEAR: 1944
MANUFACTURER(S): Yokosuka Naval Air Technical Arsenal / Kawanishi - Imperial Japan
PRODUCTION: 96
OPERATORS: Imperial Japan
SPECIFICATIONS



Unless otherwise noted the presented statistics below pertain to the Yokosuka P1Y2-S model. Common measurements, and their respective conversions, are shown when possible.
CREW: 2
LENGTH: 49.21 feet (15 meters)
WIDTH: 65.62 feet (20 meters)
HEIGHT: 14.11 feet (4.3 meters)
WEIGHT (EMPTY): 17,196 pounds (7,800 kilograms)
WEIGHT (MTOW): 29,762 pounds (13,500 kilograms)
ENGINE: 2 x Mitsubishi "Kasei 25" 14-cylinder radial piston engines developing 1,850 horsepower each.
SPEED (MAX): 326 miles-per-hour (525 kilometers-per-hour; 283 knots)
RANGE: 3,418 miles (5,500 kilometers; 2,970 nautical miles)
CEILING: 32,152 feet (9,800 meters; 6.09 miles)
RATE-OF-CLIMB: 1,745 feet-per-minute (532 meters-per-minute)




ARMAMENT



STANDARD:
1 x 30mm cannon
2 x 20mm cannon in obliquely-angled mounting.

OPTIONAL:
Up to 2,205lb of bombs held in a ventral bomb bay.
VARIANTS



Series Model Variants
• P1Y2-S "Kyokko" - Base Series Designation; 96 examples completed by Kawanishi; stock later reverted back to medium bomber role.


HISTORY



Detailing the development and operational history of the Yokosuka P1Y2-S Kyokko (Aurora) Night-Fighter / Night-Intruder Aircraft.  Entry last updated on 4/20/2016. Authored by Staff Writer. Content ©www.MilitaryFactory.com.
The Yokosuka P1Y2 "Kyokko" ("Aurora") became an offshoot of the original P1Y1 Medium Bomber (detailed elsewhere on this site) introduced for service into the Imperial Japanese Navy (IJN) of World War 2 during 1944. Performance of the bomber led IJN authorities to pursue a night-fighter variant of the twin-engined platform to contend with the threat had through the American Boeing B-29 "Superfortress" heavy bomber. This work led to the P1Y2-S and saw Kawanishi given the charge to convert the bomber to a night-fighter. Ninety-six aircraft were built to this standard.

The new aircraft was finalized with 2 x Mitsubishi "Kasei 25" series 14-cylinder radial piston engines of 1,850 horsepower each (the original bomber was outfitted with 2 x Nakajima "Homare 11" 18-cylinder engines). Armament was revised to include 2 x 20mm Type 99 cannons in an oblique installation, allowing upward/forward firepower against the more vulnerable bellies of Allied bombers. Additional armament included a 30mm Type 5 cannon and the ventral bomb bay, the latter giving the new aircraft the potential to conduct night time raids against ground targets of opportunity. A first flight involving a P1Y2-S prototype occurred during June of 1944. AI radar was installed in the nose (along with its external antenna structures) and the type was adopted into the IJN soon after.

The aircraft managed only a short service life in the latter stages of the war, its performance deemed unacceptable when attempting to intercept the high-flying Boeing B-29s. As a result, many of these aircraft saw conversion back to their original medium bomber roles with some serving in the late stages of the war as kamikaze weapons against Allied warships.

Another night-fighter development related to the P1Y1 became the P1Y1-S. This model carried 4 x 20mm cannons in two obliquely-angled mountings, one forward and the other aft of the cockpit, as well as a single 13mm machine gun facing aft for defense. Another change was the inclusion of 2 x Nakajima Homare 12 series engines of 1,825 horsepower output. The variant existed in very limited production and made little impact.




MEDIA









Our Data Modules allow for quick visual reference when comparing a single entry against contemporary designs. Areas covered include general ratings, speed assessments, and relative ranges based on distances between major cities.

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Relative Maximum Speed Rating
Hi: 400mph
Lo: 200mph
    This entry's maximum listed speed (326mph).

    Graph average of 300 miles-per-hour.
City-to-City Ranges
NYC
 
  LDN
LDN
 
  PAR
PAR
 
  BER
BER
 
  MSK
MSK
 
  TKY
TKY
 
  SYD
SYD
 
  LAX
LAX
 
  NYC
Graph showcases the Yokosuka P1Y2-S's operational range (on internal fuel) when compared to distances between major cities.
Aviation Era
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Useful in showcasing the era cross-over of particular aircraft/aerospace designs.
Unit Production Comparison
Comm. Market HI*: 44,000 units
Military Market HI**: 36,183 units
96
96

  * Commercial Market High belongs to Cessna 172.

  ** Military Market High belongs to Ilyushin Il-2.


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Supported Roles
A2A
Interception
UAV
Ground Attack
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Training
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Anti-Ship
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Aerial Tanker
Utility/Transport
VIP
Passenger
Business
Recon
SPECOPS
X-Plane/Development
A2A=Air-to-Air; UAV=Unmanned; CAS=Close Support; ASW=Anti-Submarine; AEW=Airborne Early Warning; MEDEVAC=Medical Evac; EW=Electronic Warfare; SAR=Search-Rescue
Supported Arsenal
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