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I/32nd I.D Vacform RAAF Canberra B.20


Piprm

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Thanks Kage! Your absolutely right... don't think too much - Just do it! ( Nike) 

 

The Pilots Control Column or 'Joystick' :

 

This piece is a main focus part of the cockpit and needs to be done right as it's seen or viewed clearly from the top of the aircraft - through the canopy, as well as from the side - through the open crew access door.

I was in two minds on how to do it, either plastic or brass... though brass is a little bit more difficult to work with ( at times) but I went brass as it's going to be reproduced in resin and I need the part to be copied, as crisp and sharp as I can get it.

Most of my previous mastering was done in this way ( the important main parts) 

Here is a study of the part in question...

 

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This part of the control handle will be the most time consuming  -  I expect....

 

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There is no accurate or direct scale plans to go by,  to make this part... So I had to approach it simplistically... at this early stage, at least...

Cardboard cutout and spacial references to start...

 

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The only known drawing of the Control column of an unknown scale...

 

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..... calculator and a ruler does the trick!

 

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Copy and scale the plans through my computer and what do you know? ....32% reduction!

 

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The main shape is there - but extra and difficult work is needed...mostly in the centre - hub area , the hand - grips and so on....

There is a box on top of the column, which I have no idea what it does - other then an airbrakes switch - amongst others knobs and things! ( see earlier photos)

 

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The top of the column is prepared for the box addition.. this is the view from the top of the model through the canopy... the detail will be there - eventually

 

 

 

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OK, happy with the progress so far... 

Sorry to be bouncing around - from one area to another, but parts sizing and fit - is driving this build/process at this stage.( and there is a lot here to cover!)

 

Pip

 

 

 

 

 

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  • 1 month later...

Cockpit  (continued)

We focus now on the Canopy Frame - Brace (Bar) ...

As it can be clearly seen from the outside though the Canopy Bubble, I thought I'd knock one up...

 

First a study of the Bar in Question....

It is not an easy part to see , So I've had to collate a few images to get the full picture...

 

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A revelation... my partition/wall behind pilots ejection seat is too high...

 

Now to the building of the master part... I thought i'd go with copper...

 

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One thing I did find with mucking around with ejection partition wall- heights etc is the Ejection Angles...

Modelling does reveal a few things behind designs sometimes.

In this case, ejection seat escape trajectory angles. 

What I thought initially,  is that both front and rear ejections are of the same angle.

But working over time on key areas of the cockpit ( floor, bracing, walls, fuselage stations etc) and the interconnections with each other... showed me different angles to the ejection seat walls. And this was done for a good reason - I believe...

Below is my conclusion...

 

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The result of these angles is that the Pilot and Navigators ejection trajectories,  don't come together and bump about in the jet steam!

I think it's designed for wider separation of trajectories...

Happy 2019

Pip

 

 

 

 

 

 

Edited by Piprm
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  • 5 months later...

Cockpit continued :

 

Just a sideline observation on the Quilted side-wall of the cockpit...

You will notice by the photo - reference below , that the stitching on the quilted fabric isn't as even or uniform as you would expect... ( the stitching - diamond shapes) 

So in keeping with detail and observation and also a dedication to those rivet-counters here - I have followed the same practice here with my master internal parts.

 

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Edited by Piprm
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Thanks guys for your comments, I really appreciate them...

 

Cockpoop (Continued)

Now that i have all the main Cockpit components done in their basic forms and happy with general fit,  for now... 

It's time to finish installing the right-side cockpit wall fabric and remove the Cockpit Inner-wall liner to detail and prepare it for molding.

 

I will let the photos continue the story... 

 

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NOTE: 

I was never happy with this first attempt at the left-side Canopy to fuselage connection point ( you can see I used Blu-Tak to fill the gaps) ... so I have decided to re-visit this area  - after I finish the other side fabric installation.

 

 

 

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This is how it should be....

 

 

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Time to Crow-Bar `my wall base inner-liner part,  out of the fuselage ...

My previous explanation of using water-based paper-glue to build up and fix this part in place as preparations in this area - for later removal, ( which is now) ..... is about to pay dividends or total disaster!

 

 

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Wadda - Ya - Know?  .... My wall liner part  popped out,  without too much fuss at all! 

... a bit of sticky residue to clean up but being water based paper-glue ... easy-peazy!... 

Any other glue used during earlier preparations - would have been a disaster for sure!

 

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Yes, it has a bit of colour  bleed-through,  in the material but that is a chemical reaction to the Blue-Tak sticky base ( compare it to the freshly made right - side cockpit) ...  but the Quilted textures on the inside walls is still good to go,  for copying - and it also needs a bit of tidying up around the edges and all,  but it's not that much work... 

Oh Yes!... this new inner-wall part feels pretty solid in my hands - though it's not thick.. the T-section formers give it that rigidity I need.

Hmm, Not bad for my first attempt - me thinks !   :thumbsup:

 

Pip

Edited by Piprm
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10 hours ago, brahman104 said:

Excellent work Pip! Really outstanding scratchbuilding going on here. You've nailed that soundproofing.  The canberra sure has a busy little cockpit; lots of things to bang your head on!

 

Craig 

 

Yep Thanks Craig - Busy cockpit it certainly is!

.. and it's keeping me busy too!

Pip

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On 6/24/2019 at 12:16 PM, LSP_Kevin said:

Excellent problem-solving, Phil!

 

Kev

 

Thanks Muchly Kev!

I'm itching to get these parts into resin soon!... it's a pity I've got a few coals in the fire  - as far as other projects going on at the same time! 

But I'm determined to make some inroads here.

Pip

 

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