Author Topic: McDonnell Douglas Alternative Harrier Replacement.  (Read 16097 times)

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Offline kitnut617

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Re: McDonnell Douglas Alternative Harrier Replacement.
« Reply #15 on: September 19, 2011, 01:05:54 pm »
Well, I've got some deep thinking to do now, my initial plan is going to need a bit of refinement as it's not going quite to plan   :banghead:

Does anyone know if there's a 1/65 or 1/75 F-15 produced, the 1/100 scale ones might be a tad small ---  :banghead: :banghead: :banghead:
« Last Edit: September 19, 2011, 01:07:43 pm by kitnut617 »
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SinUnNombre

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Re: McDonnell Douglas Alternative Harrier Replacement.
« Reply #16 on: September 19, 2011, 01:16:15 pm »
1/72 is a popular scale, so you may be able to find what you need there.

Jon

Offline kitnut617

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Re: McDonnell Douglas Alternative Harrier Replacement.
« Reply #17 on: September 19, 2011, 01:19:47 pm »
1/72 is a popular scale, so you may be able to find what you need there.

Jon

Um! I'm building in 1/72 scale Jon ---  :lol:

EDIT:

Just had a look in the PAK-20 book, a company called 'Big One' produced a 1/87th one --- now where can I get one of those ---
« Last Edit: September 19, 2011, 01:25:28 pm by kitnut617 »
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SinUnNombre

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Re: McDonnell Douglas Alternative Harrier Replacement.
« Reply #18 on: September 19, 2011, 02:17:08 pm »
1/72 is a popular scale, so you may be able to find what you need there.

Jon

Um! I'm building in 1/72 scale Jon ---  :lol:

EDIT:

Just had a look in the PAK-20 book, a company called 'Big One' produced a 1/87th one --- now where can I get one of those ---

Oh. Putting that on my list of new things learned today.

Jon

Offline kitnut617

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Re: McDonnell Douglas Alternative Harrier Replacement.
« Reply #19 on: September 19, 2011, 05:32:18 pm »
I think for the front end I need to start with the fan front, this will determine where everything else will go.

So first thing was to work out a new intake duct for the bigger fan front so I made a small square-to-round (technically it's an offset rectangle to round  ;D )



Then glueing the halves together you can see how it's supposed to go, the last pic shows how the inlets will be orientated, there will be a center streamlined bit going in between them eventually.






Unfortunately, the fan blades are getting a bit wacked around and breaking off   :banghead: :banghead:
« Last Edit: September 19, 2011, 05:34:35 pm by kitnut617 »
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Offline pyro-manic

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Re: McDonnell Douglas Alternative Harrier Replacement.
« Reply #20 on: September 19, 2011, 11:54:43 pm »
...so I made a small square-to-round...

Ok, HOW did you do this!? I have just such an issue for a planned build, and I've been dreading wet-sculpting the trunking out of milliput. Any tips would be greatly appreciated!

Looking great so far, by the way - I love the way you joined the Eagle and Tornado parts. :thumbsup:
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Offline kitnut617

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Re: McDonnell Douglas Alternative Harrier Replacement.
« Reply #21 on: September 20, 2011, 06:31:22 am »
Ok, HOW did you do this!? I have just such an issue for a planned build, and I've been dreading wet-sculpting the trunking out of milliput. Any tips would be greatly appreciated!

Thanks Alun ---  I worked it out in my AutoCad but I did find this on the internet which is really quick (and neat) --
http://www.sheetmetalguy.com/transition.htm

Just follow the instructions and it will spit out a development for you.  When the save menu pops up, browse for a directory that you have on your computer and save it there. Then change the *.txt to *.dxf.
Once you've done that send it to me (by PM) and I'll convert it into a jpeg using my autocad program.  Or just tell me what the sizes are and I'll quickly do it for you.

Basically, what you do is work out a flat development like this



Then after cutting the shape out, carefully bend along the lines in the corners using some long nose plyers. Like this --



BTW, the more segments in the corners (that's all the lines) the smoother the corner becomes, so less sanding.

Robert
« Last Edit: September 20, 2011, 06:59:34 am by kitnut617 »
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Offline Supertom

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Re: McDonnell Douglas Alternative Harrier Replacement.
« Reply #22 on: September 20, 2011, 07:22:21 am »
Y'know, after all this is said and done you might want to build up a Yak-141 as a comparison.
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Offline kitnut617

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Re: McDonnell Douglas Alternative Harrier Replacement.
« Reply #23 on: September 20, 2011, 07:31:02 am »
Y'know, after all this is said and done you might want to build up a Yak-141 as a comparison.

 ;D

I might -- but probably won't.  As I don't really like Russian aircraft (or German, or Japanese, or Italian, or ---)   :lol:
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Offline kitnut617

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Re: McDonnell Douglas Alternative Harrier Replacement.
« Reply #24 on: September 20, 2011, 10:56:46 am »
Here's a comparison between the GR.5/7 fan front and duct with the one I'm building,



Quite a bit bigger, which is what I was expecting considering that the GR.5 had 23,500 lbs of thrust and this MD one would have 40,000 lbs+.

I decided to cut the wings off the 1/100 F-15 just to see what I'm up against, and I don't think I have to look anywhere else for wings, they actually look about right.



And the aircraft won't be much bigger than a Harrier ---


« Last Edit: September 20, 2011, 10:59:18 am by kitnut617 »
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Offline Pablo1965

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Re: McDonnell Douglas Alternative Harrier Replacement.
« Reply #25 on: September 20, 2011, 03:08:00 pm »
even more interesting :thumbsup:

Offline Old Wombat

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Re: McDonnell Douglas Alternative Harrier Replacement.
« Reply #26 on: September 21, 2011, 03:00:40 am »
Hope you have/can-make another set of fan blades! :-\

This is looking great & I'd hate to see knackered fans spoil the look. :thumbsup:
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Offline kitnut617

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Re: McDonnell Douglas Alternative Harrier Replacement.
« Reply #27 on: September 21, 2011, 05:48:35 am »
Hope you have/can-make another set of fan blades! :-\

This is looking great & I'd hate to see knackered fans spoil the look. :thumbsup:

I know I have another around somewhere (IIRC they're a Braz 1/144 fan fronts for a 777) but do you think I can find it --  :banghead:

But I think if I strategically place the broken ones in certain areas, you'll have a hard time seeing them (that's as long as I don't break anymore I guess ---  :-X  )
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Offline Captain Canada

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Re: McDonnell Douglas Alternative Harrier Replacement.
« Reply #28 on: September 22, 2011, 08:31:26 am »
That's alot of parts to make one aeroplane.....I like it !

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Offline Silverfox

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Re: McDonnell Douglas Alternative Harrier Replacement.
« Reply #29 on: September 22, 2011, 11:30:36 am »
Amazing stuff! I'll be watching this closely, especially for ideas on how to model things in future!
Love the work you've done so far, and the concept behind it too.