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#0875

Yokosuka B4Y

first flew 1935· torpedo bomber

Yokosuka B4Y, photo 1 of 1
1/1 Unknown author Unknown author· Public domain

what is it?

The Yokosuka B4Y (Navy Type 96 Carrier Attack Bomber) was a carrier-borne biplane torpedo bomber designed and primarily produced by the Japanese defence manufacturer Yokosuka Naval Air Technical Arsenal. Flown by the Imperial Japanese Navy Air Service (IJNAS) during World War II, The Allied reporting name was "Jean". It was mistakenly identified by the British as the Nakajima Navy G-96.

How to recognise it: 1 piston engine with propeller · 15 m wingspan

base stats

  • speed 278 km/htop speed
  • range 573 kmwithout refuelling
  • size 3,600 kgmax take-off weight
  • built 205made in total

Bars compare against all aircraft: 3,500 km/h, 20,000 km, 850 seats; size and number built on a log scale up to 640 t (An-225) and 45,000 built (Cessna 172).

fun facts

  • First flew 91 years ago, in 1935.
  • Top speed is 2.1× a car on the Dutch motorway (130 km/h).
  • Wingspan of 15 m: about 3 cars parked nose to tail.

piston: A car-like piston engine turning a propeller: simple and cheap, the classic small plane.

spec sheet

first flight
1935
introduced
1936
retired
1943
status
retired
number built
205
role
torpedo bomber
makers
Mitsubishi
engines
1× Nakajima Hikari 2
length
10.2 m
wingspan
15 m
height
4.4 m
max take-off weight
3,600 kg
top speed
278 km/h
range
573 km
ceiling
6,000 m

Specs are for the version in the Wikipedia article's specification section. Blank means the sources don't say.

Sources: Wikidata Q702434, Wikipedia: Yokosuka B4Y (CC BY-SA 4.0).Updated 2026-10-24.

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