Author Topic: Northrop N-9MA  (Read 19884 times)

Offline Weaver

  • Skyhawk stealer and violator of Panthers, with designs on a Cougar and a Tiger too
  • Chaos Engineer & Evangelistic Agnostic
Re: Northrop N-9MA
« Reply #15 on: December 03, 2014, 09:18:22 PM »
You'd need to scaleorama, there simply isn't the room, the N9M isn't very big.
Yup, zactly what to do.  1/48 N-9MA is good kit for us 1/72 builders.
Can be flying wing of more substance.

That was what I was going to say: the best way to give this plane bigger engines is to give it a smaller pilot. I'd be inclined to fit a 1/72nd scale cockpit in the available space.

Whatever you decide to do, another thing to think about is that an operational version would need an armoured windscreen.
"I have described nothing but what I saw myself, or learned from others" - Thucydides

"I've jazzed mine up a bit" - Spike Milligan

"I'm a general specialist," - Harry Purvis in Tales from the White Hart by Arthur C. Clarke

Twitter: @hws5mp
Minds.com: @HaroldWeaverSmith

Offline Frank3k

  • Excession
  • Formerly Frank2056. New upgrade!
    • My webpage
Re: Northrop N-9MA
« Reply #16 on: December 04, 2014, 01:20:55 AM »
If you have a P-51 fuselage, put it on the wing backwards to get an idea as to the size of a Merlin engine.

Offline LemonJello

  • MARPAT Master
  • Member number 100...WooHoo!!!
Re: Northrop N-9MA
« Reply #17 on: December 07, 2014, 09:05:00 AM »
Unfortunately, there are no P-51s in LemonJello Heavy Industries' warehouses, so, I'll just have to use my semi-calibrated Mk I Mod 0 eye and see what I come up with for this.  Looking at the sizes of Allison and Rolls Royce engines I definitely think I can find something that looks right. 

Offline elmayerle

  • Its about time there was an Avatar shown here...
  • Über Engineer...at least that is what he tells us.
Re: Northrop N-9MA
« Reply #18 on: December 07, 2014, 11:03:44 AM »
Unfortunately, there are no P-51s in LemonJello Heavy Industries' warehouses, so, I'll just have to use my semi-calibrated Mk I Mod 0 eye and see what I come up with for this.  Looking at the sizes of Allison and Rolls Royce engines I definitely think I can find something that looks right.
make it a wilder whif and install a pair of Wright Tornadoes instead.

Offline Jeffry Fontaine

  • Unaffiliated Independent Subversive...and the last person to go for a trip on a Mexicana dH Comet 4
  • Global Moderator
  • His stash is able to be seen from space...
Re: Northrop N-9MA
« Reply #19 on: December 07, 2014, 11:58:14 AM »
One thing LHI will not have a shortage of in the very near future is fuel tanks of a suitable size and shape with which to experiment with :)
"Every day we hear about new studies 'revealing' what should have been obvious to sentient beings for generations; 'Research shows wolverines don't like to be teased" -- Jonah Goldberg

Offline elmayerle

  • Its about time there was an Avatar shown here...
  • Über Engineer...at least that is what he tells us.
Re: Northrop N-9MA
« Reply #20 on: December 07, 2014, 12:46:14 PM »
One thing LHI will not have a shortage of in the very near future is fuel tanks of a suitable size and shape with which to experiment with :)
Should he need something a tad larger, I believe that, in amidst a variety of items acquired in a bulk sale, I have some 1/32 Corsair drop tanks I'd be willing to offer up.

Offline Jeffry Fontaine

  • Unaffiliated Independent Subversive...and the last person to go for a trip on a Mexicana dH Comet 4
  • Global Moderator
  • His stash is able to be seen from space...
Re: Northrop N-9MA
« Reply #21 on: December 07, 2014, 01:05:12 PM »
One thing LHI will not have a shortage of in the very near future is fuel tanks of a suitable size and shape with which to experiment with :)
Should he need something a tad larger, I believe that, in amidst a variety of items acquired in a bulk sale, I have some 1/32 Corsair drop tanks I'd be willing to offer up.
If John does not need them I am quite sure that Brian Da Basher could turn those Corsair drop tanks into a nice pair of matching airships :)
"Every day we hear about new studies 'revealing' what should have been obvious to sentient beings for generations; 'Research shows wolverines don't like to be teased" -- Jonah Goldberg

Offline LemonJello

  • MARPAT Master
  • Member number 100...WooHoo!!!
Re: Northrop N-9MA
« Reply #22 on: December 07, 2014, 09:36:06 PM »
make it a wilder whif and install a pair of Wright Tornadoes instead.

Just looked up the Wright Tornado engine. I think I may have found my powerplant.  Have to do some measuring on the actual airframe, but I like the smaller diameter compared to the Allison V-3420 and RR Merlin.  I found some 1/72 A-10 engine nacelle parts that could be useful for representing the larger engines I want for this build.
« Last Edit: December 07, 2014, 09:37:43 PM by LemonJello »

Offline jcf

  • Global Moderator
  • Turn that Gila-copter down!
Re: Northrop N-9MA
« Reply #23 on: December 08, 2014, 08:51:17 AM »
Don't forget the Continental IV-1430, plus it was, at one time, intended for the P-76 (production P-39E).  ;)



http://www.enginehistory.org/iv-1430.shtml

http://en.wikipedia.org/wiki/Continental_XI-1430
(The specs section of the Wiki page is hosed as to dimensions  :-X, but it's smaller than the 8' long Tornado.)


"Evil our grandsires were, our fathers worse;
And we, till now unmatched in ill,
Must leave successors more corrupted still."
Horace, 65BC - 8BC. Marsh translation.

Offline Old Wombat

  • "We'll see when I've finished whether I'm showing off or simply embarrassing myself."
  • "Define 'interesting'?"
Re: Northrop N-9MA
« Reply #24 on: December 08, 2014, 09:30:36 AM »
Obviously a TARDIS cube - bigger on the inside than out. ;)

Don't know about it being less than 8' long, though. I'd guesstimate that the two oil(?)/coolant(?) tanks (look like oil tanks to me) on top of the trailer frame are about 2' from one side to the other (using a 3" square-tube frame as a basis) & a quick measure-up indicates that the engine is about 4 times as long as their combined width (including the gap). So, if it is shorter than 8', it's not by much.

At an absolute minimum I'd say you're looking at 7'.
"This is the Captain. We have a little problem with our engine sequence, so we may experience some slight turbulence and, ah, explode."

Offline jcf

  • Global Moderator
  • Turn that Gila-copter down!
Re: Northrop N-9MA
« Reply #25 on: December 08, 2014, 10:12:44 AM »
Graham White's trailer setup has exactly zero to do with an actual airframe installation.
It's all his own design.
Center to center on the axles is 36".

"Evil our grandsires were, our fathers worse;
And we, till now unmatched in ill,
Must leave successors more corrupted still."
Horace, 65BC - 8BC. Marsh translation.

Offline Old Wombat

  • "We'll see when I've finished whether I'm showing off or simply embarrassing myself."
  • "Define 'interesting'?"
Re: Northrop N-9MA
« Reply #26 on: December 08, 2014, 10:45:03 AM »
Didn't know that.

So that brings it down to about 6' 6".

What I did know was that the frames we used to support the R-1820's when they were removed from our Trackers, back in the day when I was working on them, used a minimum 3" square-tube steel frame. I made a reasonable assumption that the frame used to support this engine was approximately the same. Looks like I was wrong.

We had one that used 4" square-tube framing but, knowing the RAN, that was probably a left-over from when we operated Sea Furies.
"This is the Captain. We have a little problem with our engine sequence, so we may experience some slight turbulence and, ah, explode."

Offline jcf

  • Global Moderator
  • Turn that Gila-copter down!
Re: Northrop N-9MA
« Reply #27 on: December 08, 2014, 11:05:11 AM »
Drawings from the photo gallery:
http://www.enginehistory.org/iv-1430_pics.shtml




"Evil our grandsires were, our fathers worse;
And we, till now unmatched in ill,
Must leave successors more corrupted still."
Horace, 65BC - 8BC. Marsh translation.

Offline LemonJello

  • MARPAT Master
  • Member number 100...WooHoo!!!
Re: Northrop N-9MA
« Reply #28 on: April 04, 2015, 11:01:41 PM »
Thread Necromancy! But I wanted to get back to this project.

Where we are now:





Now to start enlarging the engine areas to represent more horsepower.

Offline taiidantomcat

  • Plastic Origamist...and not too shabby with the painting either!
  • Global Moderator
  • Stylishly late...because he was reading comics
Re: Northrop N-9MA
« Reply #29 on: April 05, 2015, 01:33:01 AM »
This is looking good  :)
"They know you can do anything, So the question is, what don't you do?"

-David Fincher