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Piprm

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Piprm last won the day on November 5 2017

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About Piprm

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  • Birthday 11/29/1959

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    piprm1

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    Male
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    Brisbane - Aus
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    Aviation
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  1. Piprm

    75 Sqn RNZAF Mosquito Detailed Build

    Anthony, Masterful research and modelling skills shown... Following with interest here ! Pip
  2. 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... 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... 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... 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
  3. Piprm

    HGW A-20G Havoc - IN PLASTIC!!!

    Bring it on Baby! Pip
  4. 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... This part of the control handle will be the most time consuming - I expect.... 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... The only known drawing of the Control column of an unknown scale... ..... calculator and a ruler does the trick! Copy and scale the plans through my computer and what do you know? ....32% reduction! 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) 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 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
  5. Navigators work station: A study of Navigators work console/ bench / instruments..... Here's a Navigators instrument panel being restored in the workshop.... ( no not mine) You will notice that the instrument cluster/ layouts on the two versions shown above and even the workshop manual illustration (top) are very different! The Canberra B-20 was in Australian service between 1954 and 1982 and there was constant upgrades of equipment and technologies,over the years.. (as most countries) So! which one to do ?... I Dunno! ( See! I don't have all the answers!) Lets start with basic construction and hopefully the answer will emerge itself in time... As I detail this area later - some decision will be made on the navigators layout... Pip
  6. Cockpit : ( Continued) Pushing ahead to get the main components made - though in basic form...for the moment Next , is the Navigator Electrical Control Tower ( highlighted in grey below) s Now a study in the Control Tower... The first photo is a British version with an extra component/fitting on top Which version of the Navigators work facia on the Electrical Control Tower I will make, is undecided right now.... Though, with this information - I made a basic shaped box, which I think will be connected to the Pilots back-partition when the part is finished and ready for molding. Next is Pilots Instrument panel and Electrical Control Tower in place.... You will notice I made additional 'L-shaped' Pilots flooring ( a separate piece ) which will be detailed on top and sides with possibly the rudder pedals incorporated ( yet to be decided) ..... Everything 'slides in' as it suppose to... and the basic component shapes are there... This process is almost like a sculptor chipping away at a block of Marble, until the shapes slowly emerge... and then once that is established, the finer detail is massaged out. (Well this is my approach - anyways ) Next... we move onto the Navigators work area.... Pip
  7. Thanks for the comments Guys, really appreciate them! Instrument Panel : The Pilots Instrument panel ( and navigators too for that matter) are different between all the marks of the Canberra in set up and general 'look'. Since mine is the RAAF version , I am concentrating on that... but cannot do a 'Generic version' to cover all the marks. I try to cover all bases but unfortunately, this is a one choice affair for me regarding this part. Perhaps it's just a simple case of altering the resin panel copies for your own version.( or make a completely new one) . Here is a study of the Pilots Instrument panel... ( this is the British version - I believe) You will notice the panel on the far-right is angled back and in two extra smaller sections Here is a photo of this area in question.... You can clearly see the two angled panels on the right... ( marked red and yellow) The B-20 RAAF version has only one angled panel on the right - half side... as shown in next photo..... Interestingly, Some Canberra models aren't completely correct in their renditions in this area... ( as per 1/48th model depiction below) The photo-etched flat panel (above) would be designed for the 2-seater trainer version I should think.... Maybe the angled panel ( above) is a little too angled? ( depends on what mark or version this is ) now you can see what I mean... also the instrument clusters are different too... now to make the Pilots Instrument Panel ( RAAF version) ... The cover plates are an entrance tunnel for the navigator ( and to stop bumping sensitive instrument switches and snagging on sharp edges) Basic shapes - Yes, but they must all fit together with other parts in the cockpit - before I detail..... Pip
  8. Thanks Kev, I hope I've conveyed here, how complex this cockpit really is... Taxing? Yes very! ... at times, it does push me to my limits - I feel. It's that 'Love-Hate' feeling we get with modelling as we all experience at times. Pip
  9. Cockpit / Fuselage: Time to check for Canopy fitment and to really show you how bloody complex this cockpit area really is! The photos speak for themselves... Now that I've got the major mounting points of most of the parts established .. I can now continue with the wall - liner Here's an interesting comparison between my efforts so far and a 1/48th example of same area.. The padded - wall section comes out as one piece clam-shell design and will be copied in resin at a later stage ( when i got all the cockpit components done) So far - soo Good! Pip
  10. Canopy - Continued Now that the Canopy's outside 'basic' shape is established .. my focus is now to the inside of canopy... I now make a mounting - ring that inserts into the top of the fuselage and locks itself in - for want of a better description.. I'll let the photos tell the rest of the story..... Once i had the mounting ring made... I realised the back - inside area of canopy was raised and the tubular vent system went up with it.. This effects the clear window shown as red arrow... (above) ... Here's a better view of back of canopy area... Now for the tubular vents that goes right around the edging of the canopy ... ( to strengthen the canopy frame and to stop the canopy misting up - I should think) Its rather a very bendy and twisty affair - as shown in photo below... Because of the roller coaster tubular vent design ... it's makes it very hard to make unless you make a jig or something... so I took the next option of making it in sections and joining them up later... ....All to do now is simply clean up the weld points Now test for fit and appearance ... The canopy sits and fits well.. and thats one battle - won for now! Pip
  11. Piprm

    CAC Boomerang

    You got it in one - Erik! Pip
  12. Thanks Starfighter, constructive comments - they are always welcomed! Yes you're right in most respects... but as i said in the thread... It's taking shape, but it's no-way near the point it needs to be... the target is 75% finished of a canopy that at the end of the process...(copying in resin and working more on it) will then be at it's 100% 'sweet spot' perfect finished... I think I'm at 50% right now... I know there's further work to do on it - to get it at that 75% preparation target. I have a few more photos coming to show the how complex this canopy and how interconnected all the elements, in this canopy area are. (Stay tuned) There's still a way to go till I think I'm ready to copy the framework and then work it further to the finished product. Yes your right , It's sitting higher and appears to be so, because the bottom of the framework is thicker then it needs to be... ( and the blue clear protective liner perhaps makes it look bigger then it is) also the back of the canopy ( extension collar ? or angled piece) needs to be trimmed further towards the canopy. ( too long) and less angled or 'flatter' as you say - which I've since done. I wasn't focused on the thickness of the bottom framework at the time but more on getting the clear canopy to properly sit in the framework in the first place ( a challenge in itself). Now that i have accomplished this ( to a major degree) I will focus more on thinning the bottom framework area, as I've mentioned... and the inner parts of the framework as well ( coming threads). I can easily miss stuff and extra sets of eyes and comments here, are very welcome. Pip
  13. Canopy and Framework .... Takin' Shape : I decided to use the spare 'Round' new canopy for final fitment as well as using it , for the cutting template for the final assembly 'Flat' canopy later... This would be the way to go when choosing either of the rounded or flat versions and to use the other canopy on the vac-sheet for the cutting template... as you only get one go at the final canopy! Now a look at the progress of the canopy and framework so far..... ... Now the clear Bubble top inserted in frame-part ... Hmm... snug fit! Remember this shot of the real one? The overall look?....She's sitting and looking nice! (at least to me!) .. as mentioned earlier in thread , the aim is to get close to the finished part - @ 75% complete .... which I think I'm getting close. Once I'm satisfied that I'm close enough... the next step is copying the framework in resin and working the resin copy further - detailing / massaging - wise... I will need to detail underneath frame as well in coming threads... Now for a quick look of the part in place for over-all effect.... Yep . It's taking shape alright! Pip
  14. Thanks Starfighter, Yes, I agree the kits supplied canopy is very basic... and you are right indeed, the canopy contours are a very stand-out feature at first glance of the aircraft. I'm not sure what you mean by... am I going to vac-form a new canopy? do you mean make one with a new frame and the clear dome formed together in one part? Right now, the clarity and shape of the kits canopy seems pretty good for what it is (though basic) ... so I hope to make a detailed canopy - frame in resin... (half - way through job right now) so as to, clip the clear -domed canopy straight into the frame I'm making (which it does easily - so far). the trick is to get the framing 'contours' and details right and make it sit on the forward-fuselage and look right from any angle - thats my challenge! (I think I'm half-way there) Happy to hear you like my efforts so far... Cheers Pip
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