Military Factory logo
Icon of F-15 Eagle military combat fighter aircraft
Icon of Abrams Main Battle Tank
Icon of AK-47 assault rifle
Icon of navy warships
Icon of a dollar sign
Icon of military officer saluting

Aichi B7A Ryusei (Grace)

Torpedo Bomber / Dive Bomber

Aichi B7A Ryusei (Grace)

Torpedo Bomber / Dive Bomber

OVERVIEW
SPECIFICATIONS
ARMAMENT
VARIANTS
HISTORY
IMAGES
Overview



By the time the Aichi B7A series made it to operational status, Japan no longer had her aircraft carriers.
National Flag Graphic
ORIGIN: Imperial Japan
YEAR: 1944
STATUS: Retired, Out-of-Service
MANUFACTURER(S): Aichi Kokuki KK - Japan
PRODUCTION: 114
OPERATORS: Imperial Japan
National flag of Imperial Japan
JPN
Technical Specifications



Unless otherwise noted the presented statistics below pertain to the Aichi B7A Ryusei (Grace) model. Common measurements, and their respective conversions, are shown when possible.
CREW: 2
POWER: 1 x Nakajima NK9C Homare 12 series 18-cylinder radial engine developing 2,000 horsepower.
ADVERTISEMENTS
LENGTH

0
feet
0
meters
WIDTH / SPAN

0
feet
0
meters
HEIGHT

0
feet
0
meters
EMPTY WGT

0
pounds
0
kilograms
M.T.O.W.

0
pounds
0
kilograms
SPEED (MAX)

0
mph
0
kph
0
knots
CEILING

0
feet
0
meters
0
miles
RANGE

0
miles
0
kilometers
0
nautical miles
CLIMB RATE

0
ft/min
0
meters-per-minute
Armament



STANDARD:
2 x 20mm Type 99 cannons in wings
1 x 7,92mm Type 1 OR 13mm Type 2 machine gun in rear cockpit position.

OPTIONAL:
Up to 1,765lbs of drop ordnance including 1 x "Long Lance" torpedo.
Graphical image of an aircraft medium machine gun
Graphical image of an aircrat automatic cannon
Graphical image of an aircraft aerial torpedo
Graphical image of an aircraft conventional drop bomb munition
Variants / Models



• B7A "Ryusei" - Base Series Designation
• B7A1 - Prototype designation; nine examples completed.
• B7A2 - IJN production bomber designation
• B7A2X - Experimental mount fitted with Nakajima Jomare 23 series radial piston engine of 1,490 horsepower; single example of B7A2 model.
• B7A3 - Proposed variant fitting Mitsubishi MK9A engine of 2,200 horsepower; not produced.


History



Detailing the development and operational history of the Aichi B7A Ryusei (Grace) Torpedo Bomber / Dive Bomber.  Entry last updated on 4/11/2018. Authored by Staff Writer. Content ©www.MilitaryFactory.com.
The Aichi-produced B7A "Ryusei" (translated to "Shooting Star" and nicknamed "Grace" by the Allies) was a limited-production torpedo/dive bomber in service with the Imperial Japanese Navy (IJN) during the late stages of World War 2. Unfortunately for the design, the aircraft arrived too late to be fielded in force as the Japanese Navy was now without any viable carrier options by the time of the B7A's adoption. With just a scant 114 production aircraft resulting, the series became an overlooked Aichi wartime design that would never have a chance to live up to its perceived potential as a new, all-modern carrier-based torpedo/dive bombing platform.

The B7A Ryusei was conceived of to fulfill a new Japanese Navy requirement for a carrier-based torpedo/dive bomber as early as 1941. A prototype was flown during 1942 but the aircraft, seeing prolonged delays from engine development issues and natural causes (an earthquake on the island), was forced to await receiving its official operational status until 1944. By then, the Japanese Navy was all but crippled of her strategic, and vastly important, aircraft carriers across the Pacific Theater that the B7A would instead see limited-duty from land-based airfields.

At its core, the Aichi B7A Ryusei was a single engined, two-seat, low monoplane aircraft design. A dorsal arrangement allowed for the carrying of a single 1,764lb torpedo or an equal amount of standard drop ordnance. Additionally, two forward-firing, fixed 20mm cannons were mounted in the leading wing edges while a single, defensive-minded, 7.92mm or 13mm machine gun was fitted to a flexible mounting at the rear cockpit position for added defense.




Power was served through a Nakajima NK9C Homare 12 model, 18-cylinder, air-cooled, radial piston engine of 1,825 horsepower providing for a top speed of 352 miles per hour, a range out to 1,890 miles and a service ceiling up to 36,910 feet. The engine drove a four-bladed propeller assembly.

Dimensions included a length of 37 feet, 8 inches, a wingspan of 47 feet, 3 inches, and a height of 13 feet, 5 inches. As the B7A was intended for carrier service, it came complete with hinged wing sections to allow for folding on space-strapped aircraft carriers of the IJN.

Prototypes were recognized as B7A1 and a total of nine were produced. The B7A2 designation marked production quality bombers for the IJN to which 105 examples emerged. One model served as an experimental product fitting the Nakajima Homare 23 series engine. The B7A3 designation was a proposed mark outfitted with the Mitsubishi MK9A (Ha-43) engine - none of this mark were constructed.




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.

Image of collection of graph types

Relative Maximum Speed
Hi: 400mph
Lo: 200mph
This entry's maximum listed speed (351mph).

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 Aichi B7A Ryusei (Grace)'s operational range (on internal fuel) when compared to distances between major cities.
Aviation Era
Pie graph section
Pie graph section
Pie graph section
Pie graph section
Pie graph section
Useful in showcasing the era cross-over of particular aircraft/aerospace designs.
Unit Production (114)
Comm. Market HI*: 44,000 units
Military Market HI**: 36,183 units
114
114

  * Commercial Market High belongs to Cessna 172.

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


Altitude Visualization
Small airplane graphic
Supported Roles
A2A
Interception
UAV
Ground Attack
CAS
Training
ASW
Anti-Ship
AEW
MEDEVAC
EW
Maritime/Navy
SAR
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
Commitments / Honors
Military lapel ribbon for Operation Allied Force
Military lapel ribbon for the Arab-Israeli War
Military lapel ribbon for the Battle of Britain
Military lapel ribbon for the Battle of Midway
Military lapel ribbon for the Berlin Airlift
Military lapel ribbon for the Chaco War
Military lapel ribbon for the Cold War
Military lapel ribbon for the Cuban Missile Crisis
Military lapel ribbon for pioneering aircraft
Military lapel ribbon for the Falklands War
Military lapel ribbon for the French-Indochina War
Military lapel ribbon for the Golden Age of Flight
Military lapel ribbon for the 1991 Gulf War
Military lapel ribbon for the Indo-Pak Wars
Military lapel ribbon for the Iran-Iraq War
Military lapel ribbon for the Korean War
Military lapel ribbon for the 1982 Lebanon War
Military lapel ribbon for the Malayan Emergency
Military lapel ribbon representing modern aircraft
Military lapel ribbon for the attack on Pearl Harbor
Military lapel ribbon for the Six Day War
Military lapel ribbon for the Soviet-Afghan War
Military lapel ribbon for the Spanish Civil War
Military lapel ribbon for the Suez Crisis
Military lapel ribbon for the Vietnam War
Military lapel ribbon for Warsaw Pact of the Cold War-era
Military lapel ribbon for the WASP (WW2)
Military lapel ribbon for the World War 1
Military lapel ribbon for the World War 2
Military lapel ribbon for the Yom Kippur War
Military lapel ribbon for experimental x-plane aircraft
* Ribbons not necessarily indicative of actual historical campaign ribbons. Ribbons are clickable to their respective campaigns/operations.


Site Disclaimer  |  Privacy Policy  |  Cookies  |  Site Map

www.MilitaryFactory.com. Site content ©2003- MilitaryFactory.com, All Rights Reserved.

The "Military Factory" name and MilitaryFactory.com logo are registered ® U.S. trademarks protected by all applicable domestic and international intellectual property laws. All written content, illustrations, and photography are unique to this website (unless where indicated) and not for reuse/reproduction in any form. Material presented throughout this website is for historical and entertainment value only and should not to be construed as usable for hardware restoration, maintenance, or general operation. We do not sell any of the items showcased on this site. Please direct all other inquiries to militaryfactory AT gmail.com.

Part of a network of sites that includes GlobalFirepower, a data-driven property used in ranking the top military powers of the world.


Facebook Logo YouTube Logo