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Author Topic: 11-Shi Navy Type 99 Carrier Bomber competition (D3A, D3N)  (Read 3863 times)

Offline swallow

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11-Shi Navy Type 99 Carrier Bomber competition (D3A, D3N)
« on: March 06, 2008, 02:16:18 am »
Hello everyone
Looking for more information of the Aichi D3A Val dive bomber competition with Mitsubishi and Nakajima or the 11-Shi Programme.
Enyone knowing more ?

Source : Aichi D3A1/2 Val  Peter C.Smith
« Last Edit: July 05, 2016, 01:38:04 am by Skyblazer »

Offline Apophenia

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Re: 11-Shi Navy Type 99 Carrier Bomber competition (D3A, D3N)
« Reply #1 on: March 06, 2008, 02:27:54 pm »
The two competitors for 11-shi were the Mitsubishi D3M1 and Nakajima D3N1.

The latter was powered by a 730 hp Nakajima Hakari 1 radial (like the Aichi D3A1 prototype).

Article/photo (attached): Arawasi Magazine (Issue 2, Oct 2005)

Specs from the web (in Czech): http://forum.valka.cz/viewtopic.php/t/30090

Side view & details: http://www.samoloty.ow.pl/str252.htm

No details on the Mitsubishi entry, I'm afraid

Offline swallow

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Re: 11-Shi Navy Type 99 Carrier Bomber competition (D3A, D3N)
« Reply #2 on: March 07, 2008, 12:22:19 am »
Thank you Apophenia

Offline hesham

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Re: 11-Shi Navy Type 99 Carrier Bomber competition (D3A, D3N)
« Reply #3 on: December 09, 2009, 10:02:38 am »
Thank you my dear Blackkite,

in 1936 for 11-shi carrier bomber,the tenders were Aichi D3A1,
Nakajima D3N1 and Mitsubishi (suppose D3M1),and after the
mock-up was comlpeted in 1937,it was abandoned.
Who know more about it ?.
« Last Edit: September 26, 2011, 02:55:03 pm by hesham »

Offline blackkite

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Re: 11-Shi Navy Type 99 Carrier Bomber competition (D3A, D3N)
« Reply #4 on: December 10, 2009, 05:22:58 am »
Hi my dear hesham!
You are absolutely right.
11-shi Carrier Dive Bomber was born from the competition between Aichi D3A and Nakajima D3N1.
D3N1 had retractable undercarriage with speed brake and under wing perforated speed brake panel same as SBD.
Chief designer was Ryozo Yamamoto.
Engine was Hikari-1 type.(Max power 820HP 3,400m).
MTOW:3,400kg, Wing span:14.5m, Overall length:8.8m, Wing area:34m2, Max speed:352km/h(3,000m), Range:1,519km.
3 planes were manufactured and 1 was survived till the end of the war.
Unfortunately all pictures and drawings were lost.
http://www.geocities.co.jp/Bookend-Ohgai/3853/jnrs/jnrsC224c.htm

Offline lark

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Re: 11-Shi Navy Type 99 Carrier Bomber competition (D3A, D3N)
« Reply #5 on: December 29, 2009, 01:43:58 pm »
About the Nakajima D3N1...

In the Japanese magazine-English text- ARAWASI issue 2-October 2005 is
an article written by Mike Goodwin ,of J-Aircraft fame, about the Nakajima D3N1
Navy Experimental 11-Shi Carrier bomber.
In this  well written account is a photo showing this bomber.The picture is taken
3-quarters from the rear.There are also a few detail shots, probably taken from the main picture.
Also mentioned is a sideview drawing of this plane by Mr.Shorzoe Abe in
Japanese Aircraft 1910-1941-Putnam.
As far as I saw , the drawing is on page 237.

Offline blackkite

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Re: 11-Shi Navy Type 99 Carrier Bomber competition (D3A, D3N)
« Reply #6 on: January 02, 2010, 10:52:54 pm »
in 1936 for 11-shi carrier bomber,the tenders were Aichi D3A1,
Nakajima D3N1 AND Mitsubishi (suppose D3M1),and after the
mock-up was comlpeted in 1937,it was abandoned.
Who know more about it ?.

Hi! You can see NAKAJIMA D3N1 picture and drawing in the following site. Enjoy.
http://www.militaryphotos.net/forums/showthread.php?t=170397
« Last Edit: January 02, 2010, 11:15:47 pm by blackkite »

Offline blackkite

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Re: 11-Shi Navy Type 99 Carrier Bomber competition (D3A, D3N)
« Reply #7 on: July 24, 2013, 12:09:26 am »
Japanese text says that this was a Mitsubishi 11-shi dive bomber D3M1 mockup or strength test model with her design team.
Middle was Jiro Horikoshi. Mitsubishi gave up to develop D3M1 soon because they found that it was impossible to manufacture D3M1 until time limit, and began to develop 12-shi carrier fighter A6M.
source:Maru magazine special edition "JIRO HORIKOSHI WAY OF THE ZERO FIGHTER" in 15/8/2013
« Last Edit: July 24, 2013, 12:59:55 am by blackkite »

Offline swallow

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Re: 11-Shi Navy Type 99 Carrier Bomber competition (D3A, D3N)
« Reply #8 on: July 24, 2013, 12:22:24 am »
Thank you very much Blackkite.
Swallow.
 

Offline Skyblazer

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Re: 11-Shi Navy Type 99 Carrier Bomber competition (D3A, D3N)
« Reply #9 on: July 24, 2013, 02:02:28 am »
Very nice. And also I love the friendly attitude of the workers.

Thanks a lot for sharing, blackkite!

Offline windswords

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Re: 11-Shi Navy Type 99 Carrier Bomber competition (D3A, D3N)
« Reply #10 on: July 24, 2013, 02:41:13 pm »
So the D3M1 had inverted gull wings? Amyone have any other pics or drawings of this plane?
Frank

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Re: 11-Shi Navy Type 99 Carrier Bomber competition (D3A, D3N)
« Reply #11 on: July 24, 2013, 04:34:25 pm »
So the D3M1 had inverted gull wings? Amyone have any other pics or drawings of this plane?
The 11-Shi mock-up appears to have straight wings.
The aircraft illustrated on the magazine cover is the first Mitsubishi Ka-14 prototype built to the 9-Shi specification and is depicted as originally flown with the short-chord cowling, which was later supplanted by a closer fitting, longer chord cowling incorporating fairings for the cylinder rocker arms.

Offline blackkite

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« Last Edit: September 28, 2013, 09:56:26 pm by blackkite »

Offline blackkite

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Re: 11-Shi Navy Type 99 Carrier Bomber competition (D3A, D3N)
« Reply #13 on: February 20, 2015, 10:01:24 pm »
Hi! Nakajima D3N1 wind tunnel test model.

Offline Skyblazer

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Re: 11-Shi Navy Type 99 Carrier Bomber competition (D3A, D3N)
« Reply #14 on: July 05, 2016, 01:53:07 am »
Various bits and pieces merged.