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1/18 P51C Mustang "Lopes Hope 3rd"

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Peter

Been following your builds for years and with and every update, I’m amazed and keep making sure I’m not living in the Twilight Zone!

Right with Hubert and the guys: words just fail to express our amazement, awe and appreciation of your talents and work.

Keep ‘em Comin

Peter

 

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hello again :)

 

Rudder is now complete...

 

..first step is to cover it in solartex which is what RC folks use for their flying models - it has a nice scale fabric effect - this is my seventh try to get a nice clean straight bond - it is heat activated with an iron which causes the adhesive to bond and the material to shrink - pretty tricky on a part this small (by comparison..)...

 

WIP468_zpsfzly1sow.jpg

 

WIP469_zpsban4jz1f.jpg

 

..there is also a metal fairing at the bottom of the rudder which I assume protects it from crap thrown up from the tailwheel - I pressed the part into plasticine to make a female mould and then cast a buck in resin to vacform the piece over..

 

here I am marking it for cutting, with the part taped to the buck..

 

WIP470_zpsdi8yuc5s.jpg

 

..and the covered rudder - started marking out all the rib positions for the rib tape...

 

WIP471_zpsnsctu8wv.jpg

 

..you can see on a real P51 the rib tapes go over what look like small circular depressions (rather than a Spit which has raised bumps where the knots are) - look along the line of the top rib tape and you can see the effect we need to get..

 

WIP473_zpsmbhii4r5.jpg

 

..to get the effect, I used a rivet awl to punch small holes in tamiya tape and laid these down first along the rib lines..

 

WIP472_zps8wl7fcoz.jpg

 

..then for the rib tape itself, I use plumbers aluminium tape - this was made to scale width from the plans and the 'pinked' edges (fine zigzag cutting to avoid fraying) I ran a rivet wheel along the line and tried to cut through the punched holes to make the pinking..

 

these were then laid out according to the NA covering diagram..

 

WIP474_zpsyjthoyxc.jpg

 

..all done - hopefully you can see the dimples along the rib tapes - this was the effect I was after..

 

also made up a trim tab from the part broken out of the main rudder & skinned it in litho...  the rivets on it are perpendicular to the leading edge, not in line with the ribs as you would expect..

 

WIP475_zpspwsaucuh.jpg

 

WIP476_zpsfhcbfz7z.jpg

 

..also added the trim tab hinges to match the cut-outs in the tab...

 

WIP477_zps5h1angb8.jpg

 

..to finish off I added the trim tab control horn & arm, and at the top leading edge the balance weight - this was actually quite complex as it it shaped in many directions to match both the aerofoil and the tapering tip of the rudder post..

 

WIP478_zps5e8j8xvz.jpg

 

WIP479_zps66wmjef4.jpg

 

..coat of primer to settle the details & textures..

 

WIP481_zpsxhgttbkk.jpg

 

..the rib tapes look good to me so job done..

 

WIP480_zpsyveux8bb.jpg

 

back with something else soon :)

 

TTFN

Peter

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Peter

You have got to be kidding - incredible, just incredible

Keep 'em comin

Peter

 

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That's definitely not sprue cutting and gluing together, this is awesome scratching at it's best.

Cheers Rob

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Beautiful work on that rudder. It would be all to easy to just copy the work you did on the MK XIV Spit, but no you researched the way American fabric is applied and get something noticeably different as a result. A joy to watch and read.

Cees

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I've never been so inspired and depressed at the same time.  I am continually in awe of the levels reached on this build. 

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so, Happy New Year folks & onto this P51..

 

having corrected the fin and added a dorsal fin, the stabilisers were next. I checked the parts and again unfortunately they were not up to my accuracy standards so I set about making new ones. I learned from my Spit not to make and skin the stabilisers before adding them (easy to damage the skins..) so I thought I would just get them built & added now..

 

..started with the mounts & fillets - first I copied the aerofoil section in brass and used drawings to locate them, after that I added a brass tube to mount them to and started to set out the slight incidence they have...

 

WIP482_zps7arcwsys.jpg

 

..once all was set up they were cemented into position and filler added to start to blend them in - this is P40 car filler and is super useful for modelling - I taped up the brass face so as not to have to clean it up later..

 

WIP483_zpsecifalhn.jpg

 

..after shaping & priming they were done..

 

WIP484_zpsab0xhm3o.jpg

 

..the stabilisers themselves were taken from drawings and set out on 3mm plastic card (with marked rib positions) - as were the spars..

 

WIP485_zpsmxlqs5qd.jpg

 

..test fitting..

 

WIP486_zpsp7relf9b.jpg

 

..bulked out with more P40 and sanded until I can see the blach sharpie lines along the tops of the ribs..

 

WIP487_zpsllnpltjh.jpg

 

..and fixed with JB Weld - I drilled small holes on the mating faces to let the adhesive really get a good hold of the parts..

 

WIP496_zpsd8vka7tu.jpg

 

WIP495_zpsf1w40hwo.jpg

 

..will clean them up later..

 

..while they were drying, I started to think about the airscoop.. pretty challenging set of curves nad the resin part that came was not quite right, passable, but not perfect..

 

you can see the features here include a straight, sharp top, curved bottom and 'V' shaped fairing between it and the fuselage... going to be a laugh skinning this in litho thats for sure..

 

WIP489_zpssb8ke2tc.jpg

 

..again, all the drawings are in aircorps library so I scaled a set of formers and a keel - the keel has had a bit of the hollow inside removed...

 

WIP488_zpsoq0zcyz8.jpg

 

..this is the assembled according to the former positions and a big, hard card lip so get that top edge right..

 

WIP490_zpsgtnqfjt8.jpg

 

WIP491_zps8yuznqbv.jpg

 

..I want to skin the inside in litho so made up paper & tape templates to get the shapes..

 

WIP492_zpsaoimmfbd.jpg

 

..cut out the shapes, added rows of rivets and fitted them to the central tunnel.. you can see it is slathered in CA to give the whole thing rigidity as much will be removed from the structure..  also added a dam from card at the top to roughly shape the triangle fillet where it joins the fuselage...

 

WIP493_zpsskdacm92.jpg

 

..then the whole thing is covered in more P40...

 

WIP494_zpswg4ikefz.jpg

 

..lost of sanding to do, so thats a job for the garden tomorrow before I go back to work on Wednesday

 

TTFN

 

Peter

 

 

 

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Peter

I speechless as usual and in awe of both you workmanship and such high standards of accuracy.

Keep 'em comin

Peter

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Can't find a 'picking yer jaw off the floor' emoji but that's what's needed!

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thanks chaps :)

 

so, more mustang mayhem...

 

..after shaping the basic filler construction of the airscoop, next was cutting out the air intake on the roof - I made a template from the drawing..

 

WIP497_zpstj7jkzmn.jpg

 

..then with filler & dremal work I got the rounded sections done..

 

WIP498_zpsbgxo4p0d.jpg

 

..after this I had toreskin the inside as the skins I put in earlier had a join line down the middle and the real one doesn't. To dothis I lined the interior with tape and drew out the boundaries to when I remove the tape I can unravel it and get a template for one piece of rivetted litho to dress the inside in one go..

 

WIP499_zpsmgaletwk.jpg

 

..next I wanted to get the positioning right so I can partly skin the scoop in aluminium and fit it so I can add all the fuselage skinning later on.. This took the entire morning to get right as it is such a critical feature of the airframe (not helped by the plans I was using having it in the wrong position too far back...)

 

I put tape on the mating faces and added tiny drops of CA to hold it in position so I could add the filler - this process was then reversed to I make the part match the fuselage - the net result is the parts fit together seamlessly...

 

WIP500_zpsqkyzsqgb.jpg

 

..it was also braced inside before I started so the filler didn't collapse under load...

 

WIP502_zpsy67scl97.jpg

 

..then the fist bit of ali skinning on this model - coincidentally the first on my Spitfire was also an air intake..

 

..hard to see whats going on here, but on the right hand side is a sheet of soft ali under some masking tape - it is being held, rubbed,, stroked and tapped with a tiny hammer to start to conform to the shape of the roof. the black tape borders can also be seen at the nose - these leave an imprint in the ali so I know where the borders are. Its a  tricky shape as not only the shape of the scoop, but also the flaring at the top where it fairs into the fuselage...

 

WIP501_zpszjxlku4s.jpg

 

..I end up with a useable part that has adopted the shaping well.. this was added with contact adhesive...

 

WIP503_zps8eniicjx.jpg

 

..then the other side - this time with the added complication of the intake aperture..

 

WIP504_zpsntuqdtky.jpg

 

..it proved impossible to do the little intake in one piece so I added another in the inlet,,, then after cementing all the tape is removed and we have the base layer of ali down... you can see it's quite rough and creased in places, but this all sands out...

 

WIP505_zpsqhxlamet.jpg

 

after sanding aout all the defects the first sking is done & just needs finessing & rivet details but I will leave that until later

 

WIP510_zpsfu5cqmju.jpg

 

WIP511_zpsgbfqt7an.jpg

 

WIP509_zpssjdwym6h.jpg

 

..the intentionj is to get all i can done while I have access (so a bit of the wing surface where this sits needs to be done too) and then fix the scoop in place,, the nose intake is next and that is going to be a real challenge

 

TTFN

Peter

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Amazing craftsmanship...again. Peter you obviously have to think two or more steps ahead before even starting the skinning of the exterior. Do the drawings give any clue (there has to be a sequence on the drawings otherwise things go pearshaped in tight corners) or do you decide yourself?

Cees

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I just run-out of likes. Impressive skill set you have there Peter. Most inspiring in every way.

Cheers

Martin

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Peter, your work is truly inspirational. It makes me want to go build something that will challenge my skills! :thumbsup2:

Barry

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Peter

Brilliant work and as alway, leaves me speechless.

Keep ‘em comin

Peter

 

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evening ladies, and thanks for your kind words :)

 

so I have skinned the front fairing of the intake..

 

first the inner liner was added and rough cut to the edge, this was later sanded & filed flush with the intake lip..

 

WIP512_zpsaytlkbrf.jpg

 

..then the outer skin, I thought the best way was to try and wrap it as near as possible and try to get the join out of sight at the bottom...

 

WIP513_zpswp5ndchw.jpg

 

..the skin had one good straight edge along the panel line of the first part so this was the reference point from where everything else must follow - this was taped down so as not to move in the beating process..

 

WIP514_zpsbiick6h4.jpg

 

..at this point the ali is coaxed to follow the compound curves with a mini ball pein hammer - this is a long process of tapping all the creases into flats...

 

WIP515_zpsndnsgh4s.jpg

 

..ultimately the metal gives way and the shape is good enough to stick down. I use contact adhesive and in this case was lucky I could unfurl the metal so as to hinge via the adhesive tape along that top panel line - that way it just folds back perfectly into position. Then more tapping and cutting and the result is a rough leading edge, but good enough to work with...

 

WIP516_zps8fyuk9c7.jpg

 

WIP517_zpsxok8xoze.jpg

 

..this is then rough sanded & filed to get near to a finished surface... the photos show where I still need a few tweaks, and will try and add a sliver at the join line, but overall a tricky part is done..

 

WIP518_zpse9mw7w70.jpg

 

WIP519_zps2l8pdcfc.jpg

 

WIP520_zpsyyb6fk8e.jpg

 

WIP521_zpsxdraryb1.jpg

 

WIP522_zpsj8vmzknn.jpg

 

..until next time..

 

TTFN
Peter

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Amazed.  When you say contact cement...  are you meaning like the spray on rubbery stuff?  Can you post a pic of the brand, please.

 

Gaz

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evening & thanks chaps :)

On 1/12/2019 at 9:45 AM, GazzaS said:

Amazed.  When you say contact cement...  are you meaning like the spray on rubbery stuff?  Can you post a pic of the brand, please.

 

Gaz

 

Thanks Gaz - I did a couple of tutorials which covers all you need to know :)

 

Skinning in metal

 

Skinning compound curves in metal

 

 

Been working on the air intake and the exit duct - after wondering if the interior was painted I found this shot of another aircorps P51 and can see where there is closed airframe it's painted and where there is airflow it's natural metal so thats what I went with...

 

WIP537_zpsxkz1xpmw.jpg

 

inside the underwing airscoop is an oil cooler (I think) that is oval and sits in the formed fairing seen above - behind that is a big square radiator (I think) - I made the radiator from scored black card and litho framing (from a plan, and oddly the dividing bars are offset like in the pic) and I made a balsa form to vacform the fairing the oil cooler sits in...

 

WIP524_zps2ejs2frc.jpg

 

..this was the skinned while still in the form - I left it in and just cut away what I didnt need later on - vacforming over balsa causes the plastic to virtually bond with it as there are so many airholes in it...

 

..I have started to tap in the indentation with the ball end of my ball pein hammer..

 

WIP525_zpsvvfvm6j3.jpg

 

..I forgot to have the oil cooler made in my etch run so I had to make it - I just used pipe screens but had to join two down the middle..

 

WIP526_zpsv5t1u2gf.jpg

 

..and the finished assembly - this sits nicely in the airframe...

 

WIP527_zpsmkjvp8kc.jpg

 

..the exit duct on the model was out and it was hard to make sense of where the internal skinning is so I just made a pack of parts from the plan so I knew it was right..

 

WIP529_zps4jvbikcl.jpg

 

..some ultra violence was then committed...

 

WIP528_zpsiyh8qrub.jpg

 

..to make the two interface together...

 

WIP530_zps5msht1ou.jpg

 

WIP531_zpshx6pisy3.jpg

 

..this was then rough filled with P40..

 

WIP532_zpstbda6hh3.jpg

 

..another exit duct was needed so this was laid out...

 

WIP533_zpskoxta7ua.jpg

 

..and a bit of primer to see what's what...

 

WIP535_zpslbreeqbh.jpg

 

WIP536_zpsbacnqnq5.jpg

 

WIP534_zpsjrsxznnp.jpg

 

..lots more work to do as the exit duct especially is quite a complex collection of shapes & fillets...

 

TTFN

Peter

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Thanks for the links to your tutorials!  Love your amazing work!

 

Gaz

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