Register here

Author Topic: Mitsubishi G7M Taizan  (Read 25004 times)

Offline T-50

  • CLEARANCE: Secret
  • **
  • Posts: 324
Mitsubishi G7M Taizan
« on: March 24, 2009, 03:18:33 pm »
 
  Hello folks im looking for drawnings/artist impressions of the Mitsubishi G7M Taizan
  It was mend as the follow up of the Mitsubishi G4M Rikko(Betty) ,it was a two engined medium
  bomber like the Rikko.
greetings T-50

Offline Hikoki1946

  • CLEARANCE: Secret
  • **
  • Posts: 439
Re: Mitsubishi G7M Taizan
« Reply #1 on: March 24, 2009, 08:59:12 pm »
The drawing here comes from a issue of Air Pictorial. It shows the G7M as designed by Kiro Honjo. There was a version designed first, however, by Kijiro Takahashi which was quite different from what Honjo came up with (which, basically, was a derivative of the G4M which he also worked on). Takahashi's design used two 24-cylinder, H-engines and had a nose not unlike the Heinkel He 177 (among other similar features) and used a tricycle landing gear system. The design was doomed when the needed machinery to produce the H-engines could not be imported. With Takahashi's project shelved, Honjo took over but, ultimately, even the G7M (and its competitor, the Kawanishi K-100) was canceled in favor of four-engined bomber designs.

As a note, the G7M was intended as a long range, strategic bomber, not a medium bomber like the G4M (despite its great range). In the end, the constant revisions to the G7M resulted in a design little better than the G4M which helped speed its demise.

Cheers,

Ed


 
  Hello folks im looking for drawnings/artist impressions of the Mitsubishi G7M Taizan
  It was mend as the follow up of the Mitsubishi G4M Rikko(Betty) ,it was a two engined medium
  bomber like the Rikko.
greetings T-50
« Last Edit: March 25, 2009, 07:10:07 am by Pelzig »

Offline T-50

  • CLEARANCE: Secret
  • **
  • Posts: 324
Re: Mitsubishi G7M Taizan
« Reply #2 on: March 25, 2009, 01:12:14 pm »

    Hi Ed thanks for the drawning, it looks a lot like the Betty
    I didnt know that the G7M was an long range heavy bomber,i thougt becouse its size it was an
    medium bomber like the G4M or Dornier D-17
    cheers T-50
             
   

Offline Hikoki1946

  • CLEARANCE: Secret
  • **
  • Posts: 439
Re: Mitsubishi G7M Taizan
« Reply #3 on: March 25, 2009, 08:55:53 pm »
Takahashi's design, with a lighter payload, was expected to meet the 4,598 mile range dictated by the 16-shi specification. The Dornier Do 17 couldn't even touch this kind of range. For reference, from Tokyo, Japan to Los Angeles, California is 5,478 miles.

With Takahashi's version of the G7M doomed, Honjo's version, while also estimated to be able to attain the 16-shi range, was wishful thinking. No doubt the Kaigun Koku Hombu realized to attain such a range would have resulted in a relatively worthless bomb load.

The G7M was a strategic bomber, not a heavy bomber. By strategic, we are talking about a plane capable of a very large operational radius.

Cheers,

Ed



    Hi Ed thanks for the drawning, it looks a lot like the Betty
    I didnt know that the G7M was an long range heavy bomber,i thougt becouse its size it was an
    medium bomber like the G4M or Dornier D-17
    cheers T-50
             
   

Offline lark

  • Senior Member
  • CLEARANCE: Top Secret
  • **
  • Posts: 1771
Re: Mitsubishi G7M Taizan
« Reply #4 on: March 26, 2009, 07:16:45 am »
This is an interesting piece of information Ed.

When I saw the first illustration of  the Taizan with the He-177 noselook
compared with  Shorzu Abe's illustration in Air Pictorial
I was almost convinced  that the former was largely a fake design.
(maybe due to the very large wingroots).

Your explantion cleans up the picture... Thanks.

Offline T-50

  • CLEARANCE: Secret
  • **
  • Posts: 324
Re: Mitsubishi G7M Taizan
« Reply #5 on: March 26, 2009, 02:33:22 pm »


   Does any one have a picture from the version with the He-117 glazed nose?
   and my  question is were those 2 versions the only ones ,or planned the Japanese more versions of
   This aircraft?

Offline airman

  • CLEARANCE: Top Secret
  • ***
  • Posts: 1045
    • my blogs
Re: Mitsubishi G7M Taizan
« Reply #6 on: March 27, 2009, 11:23:58 am »
usually as project , was an heavy bomber with two engine , other elements on web, make suppose there was also a version of project with four engines !
writers , bloggers , content-curators ,  music composer and passionate of militaria and uchronia

Offline lark

  • Senior Member
  • CLEARANCE: Top Secret
  • **
  • Posts: 1771
Re: Mitsubishi G7M Taizan
« Reply #7 on: March 27, 2009, 12:10:29 pm »
T-50

The 'Taizan' variant you're looking for is on
http://www.J-aircraft.com
go to the X-planes chapter.

Sucess...

Offline Hikoki1946

  • CLEARANCE: Secret
  • **
  • Posts: 439
Re: Mitsubishi G7M Taizan
« Reply #8 on: March 27, 2009, 02:06:27 pm »
Honjo's original concept for the G7M had four engines but just the mere suggestion of using four engines saw Honjo's idea squashed by the Kaigun Koku Hombu before it ever got anywhere. This is when Takahashi stepped up with his two engine design. It wasn't until the failure of the G7M1 (Honjo's two-engine design) and the K-100 to meet the 16-shi and 17-shi specifications respectively did the Kaigun Koku Hombu become more receptive to four engine bombers. Of course, by then, it was too little, too late.


usually as project , was an heavy bomber with two engine , other elements on web, make suppose there was also a version of project with four engines !


Offline airman

  • CLEARANCE: Top Secret
  • ***
  • Posts: 1045
    • my blogs
writers , bloggers , content-curators ,  music composer and passionate of militaria and uchronia

Offline T-50

  • CLEARANCE: Secret
  • **
  • Posts: 324
Re: Mitsubishi G7M Taizan
« Reply #10 on: April 06, 2009, 01:34:16 pm »
http://forum.valka.cz/viewtopic.php/title/Micubisi-G7M1/t/66000

here !  ::) ::)
   Hi airman the version depicted on the site you mentioned has very modern looking nacelles.
   actually they seems to me turboprops,I know the Japanese were developing jet engine's like Germany and the UK
 I know also the Germans were working on a turboprop engine (Junkers) were the Japanese also working on similar projects?
 cheers T-50 
 

Offline Hikoki1946

  • CLEARANCE: Secret
  • **
  • Posts: 439
Re: Mitsubishi G7M Taizan
« Reply #11 on: April 06, 2009, 07:08:12 pm »
The image of the G7M shown in the link Airman provided is Takahashi's version. The Japanese were investigating turboprops but the G7M as envisioned by Takahashi did not use them despite what the image may infer.

Cheers,

Ed

http://forum.valka.cz/viewtopic.php/title/Micubisi-G7M1/t/66000

here !  ::) ::)
   Hi airman the version depicted on the site you mentioned has very modern looking nacelles.
   actually they seems to me turboprops,I know the Japanese were developing jet engine's like Germany and the UK
 I know also the Germans were working on a turboprop engine (Junkers) were the Japanese also working on similar projects?
 cheers T-50 
 

Offline T-50

  • CLEARANCE: Secret
  • **
  • Posts: 324
Re: Mitsubishi G7M Taizan
« Reply #12 on: April 07, 2009, 01:01:10 pm »

 Hi Ed thanks for the info, I found it strange a Japanese bomber with turbo props.
  although they were developing these kind of engines,it was to premature to equipping
  this aircraft with turboprops.normal engines looks for me more logical.
  cheers T-50

Offline Boogey

  • CLEARANCE: Secret
  • **
  • Posts: 200
  • B'Boomelang
Re: Mitsubishi G7M Taizan
« Reply #13 on: April 23, 2009, 01:11:54 am »
And here's another 3-view draft of Mitsubishi G7M-1 Taizan, similar to these from forum.valka
given by airman

Mine is taken from Tadeusz Januszewski & Krzysztof Zalewski's " Japońskie Samoloty Marynarki 1912 - 1945 "
t. 2, p. 79 ( as I don't have a scaner, it's only a photo of the page ).
« Last Edit: April 23, 2009, 01:33:02 am by Boogey »
Christianity will go. It will vanish and shrink.
I needn't argue with that ; I'm right and I will be proved right.
I don't know which will go first, Rock'n'Roll or christianity ?

John Lennon

Offline airman

  • CLEARANCE: Top Secret
  • ***
  • Posts: 1045
    • my blogs
Re: Mitsubishi G7M Taizan
« Reply #14 on: April 23, 2009, 05:56:04 am »
thanks to google translate i have unsterstood that this project of Mitsubishi G7M was provided ,as defensive armament, with 2 cannon of 20mm and six gun of 13 mm !
writers , bloggers , content-curators ,  music composer and passionate of militaria and uchronia