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airscale

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  1. airscale

    1/18 P51C Mustang "Lopes Hope 3rd"

    evening & thanks chaps 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... 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... ..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.. ..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.. ..and the finished assembly - this sits nicely in the airframe... ..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.. ..some ultra violence was then committed... ..to make the two interface together... ..this was then rough filled with P40.. ..another exit duct was needed so this was laid out... ..and a bit of primer to see what's what... ..lots more work to do as the exit duct especially is quite a complex collection of shapes & fillets... TTFN Peter
  2. airscale

    1/18 P51C Mustang "Lopes Hope 3rd"

    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.. ..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... ..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.. ..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... ..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... ..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.. ..until next time.. TTFN Peter
  3. airscale

    Short Sunderland MkII

    hubba hubba that is some ambition and cahones you have out on display there Tom What a lovely thing to discover on a Tuesday night... can't wait to see more Peter
  4. airscale

    I must be crazy, B-24J on the bench.

    fabulous job - really interesting to follow and I love the corrections / additions being so gracefully made Peter
  5. airscale

    1/18 P51C Mustang "Lopes Hope 3rd"

    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.. ..then with filler & dremal work I got the rounded sections done.. ..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.. ..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... ..it was also braced inside before I started so the filler didn't collapse under load... ..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... ..I end up with a useable part that has adopted the shaping well.. this was added with contact adhesive... ..then the other side - this time with the added complication of the intake aperture.. ..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... after sanding aout all the defects the first sking is done & just needs finessing & rivet details but I will leave that until later ..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
  6. airscale

    1/18 P51C Mustang "Lopes Hope 3rd"

    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... ..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.. ..after shaping & priming they were done.. ..the stabilisers themselves were taken from drawings and set out on 3mm plastic card (with marked rib positions) - as were the spars.. ..test fitting.. ..bulked out with more P40 and sanded until I can see the blach sharpie lines along the tops of the ribs.. ..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.. ..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.. ..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... ..this is the assembled according to the former positions and a big, hard card lip so get that top edge right.. ..I want to skin the inside in litho so made up paper & tape templates to get the shapes.. ..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... ..then the whole thing is covered in more P40... ..lost of sanding to do, so thats a job for the garden tomorrow before I go back to work on Wednesday TTFN Peter
  7. airscale

    1/18 P51C Mustang "Lopes Hope 3rd"

    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..)... ..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.. ..and the covered rudder - started marking out all the rib positions for the rib tape... ..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.. ..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.. ..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.. ..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.. ..also added the trim tab hinges to match the cut-outs in the tab... ..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.. ..coat of primer to settle the details & textures.. ..the rib tapes look good to me so job done.. back with something else soon TTFN Peter
  8. airscale

    I must be crazy, B-24J on the bench.

    that is bloody lovely - first time I have seen the cockpit of the kit.. got me thinking a bit.... will be tuning in as I love the B24 Peter
  9. airscale

    1/18 P51C Mustang "Lopes Hope 3rd"

    afternoon folks I am loving this free time as I have had a chance to get stuck in on areas of the airframe that need some heavy lifting... ..as I move around it, one area that is immediately obvious as a problem is the fin - check this out... ..reminds me of a MR1 Nimrod with some sort of radar pod as it is so thick and fat - but rather than witter on about how this is not what I expect for my money in this day and age from a kit manufacturer (this base moulding from HpH from their museum range is not cheap..) it just needs fixing.. I actually made two tails - the first did not have a dorsal fin as in the only pic of Lopes Hope I have, you can't see the tail, and the other shots I have of A/C from the same unit don't have them - but then Kagemusha put me onto this image where there is most definately a dorsal fin (as there is on the restored -10NT).. ..so I started tail number 2 by using a nice side on shot to derive the dorsal shape (I can't find any drawings of it) and made up a scale template... I also included a tiny bit of the fuselage top so I can see exactly where the kink from dorsal to fuselage is.. ..this was then printed and transferred to a brass sheet to act as a keel - 0.15 brass is ideal as it can be taken down to a very fine trailing edge without deforming... ..rib positions were marked and plans used to derive the rib profiles - there is a big keel at the bottom to let into the fuselage... ..I used cotton to set out the fuselage datum line on the model and arranged it so it was completely level, then after cutting off the old tail and making a slit the length of the new one it was carefully let into the fuselage and the angles checked for accuracy... ..first fill of P40 filler starts to bulk out the shape... ..while that was drying I started on the rudder..again, the first step was to interpret nad scale plans to derive templates to work from - here the outline and all the internal features are mapped.. ..same process.. transfer to brass to be cut out with a slitting disc in my dremel.. ..all the internal structure was also marked out so after cutting out I can just follow the lines.. ..features were then built out with plastic stock and coffee stirrer sticks - I find the solartex covering bonds well to these.. ..the trim tab has been cut so as to be able to be broken out after finishing the structure so it is in keeping with the profile of it's surroundings.. ..you probably can't see them, but at four positions card templates with black outlines were added to show the profile all this needed to be sanded down to to get the correct shape.. ..then a coarse sanding thing in my dremel allows me to virtually carve away the waste - it is very effective and not really dusty as with the heat it sort of acts like a scraper rather then a sander.. ..the basic rudder is complete, a bit more finessing and it will be ready to cover.. ..and here is where I am at.. ..got more than a week off to go, so expect to have the empennage done by then.. TTFN Peter
  10. You made me a very proud man this morning Mr Hatch.. Absolutely stunning modelling and the first time I have seen this set used in anger Perfect job - can't wait to see more Peter
  11. airscale

    1/18 P51C Mustang "Lopes Hope 3rd"

    afternoon ladies so, the Xmas break meant some time at the bench and I am powering on with big structural stuff - it makes a nice change from all the tiny details in the cockpit.. ..first up, I traced the gear doors from drawings to create a template, cut thisfrom card and used it to create the area to cut out for the main gear bays - this whole process took a day before I was happy with the position as it was at variance with the outline HpH had on the surface so I questioned what I was seeing and doing repeatedly... ..you can see the template and the two big holes below.. ..then it was time to add leg mounts - I did what I did for the Spitfire by braze soldering some brass tube onto brass plates to act as spigots to add lathe turned gear later on.. ..these were then epoxied into place.. the perspective makes them look a bit out, but even if they are, they will be cut down to stubs just to act as positioning for the MLG later ..for the roof of the well, I cut out some black card blanks that fitted, and matched these to drawings of all the stringer & rib positions so I could scribe what goes where onto litho to actually line them.. ,,before I could fix the roof position I had to check something... ..in the cockpit, the floor where the control stick goes is actually the top of the wing, so I had to make sure the cockpit pod with the floor did not foul the bay roof. To do this I had to get the pod into the fuselage and into position... I had never done this before, so it could all have gone horribly wrong... ..thankfully and a few fist pumps later it all fitted fine... it's tight, but it fits ...now I could fix the gear bay roof and you can see how the scribed lines will help position all the structure to go in here (and there is tons of stuff...) ..will probably add the walls then look at other big bits like stabilisers and the air scoop under the wing.. feels good to have some wind in the sails and who knows, I may make Telford next year TTFN Peter
  12. airscale

    1/18 P51C Mustang "Lopes Hope 3rd"

    Seasons Greetings folks Happy Christmas to one and all.. Just a final one before it all starts as I got out of the cockpit for a bit of fiddling about and hope to spend the nect 10 luxuriant days I have off work doing some proper P51 time ..first on scaling the spinner drawings we have a bit of a big nose - you can see about 1.5mm too big all around.. We also have an offset carb air intake under the spinner.. ..oddly its a bit uneven.. ..I made some scale templates so I can at least get an idea of where shape work may be needed - these were taken from NA drawings.. ..the btop one is a plan of the nose, the bottom a side profile and a few others around the chin intake.. ..also got the layout & spacing of the chin carb intake to correct the offset.. (X 4 as I use them at different times..) ..getting the chin right... ..and the top profile at the last former - again a plastic templete from the drawing, although to be fair to HpH I probably made it this rounded while reducing the spinner disc size.. ..you can see the flat top & 'ears' that need building out with P40 fiuller ..as I did a lot of reshaping the nose needed strength so I filled it with Alec Tiranti expanding foam - this stuff sets rock hard.. ,and hopefully some of the profiles start to take shape.. Have a great Christmas everyone TTFN Peter
  13. airscale

    1/18 P51C Mustang "Lopes Hope 3rd"

    evening folks thanks for stopping by so, it was time to move on to the floor.. ..it seems there are two layers, one layer is the top of the wings with a zinc chromate jointing strip and the two fuel gauges as seen here... ..above this, sit all the real floor panels - when I did the PE I did each panel and then made one base panel by joining all these together and filling a few gaps to get one full panel as a basis of the floor... ,,seen here is the part - it actually has a slight bend in it as the floor slopes away down to the rudder pedals, you can also see the first folded panel that go on here and drop down to the wing skin.. ..all the folded floor parts were added, the wing skin & strip made from riveted litho and tubes added for where the fuel gauges go & it was all primed.. ..I added the fixing strips at the bottom of each panel where it meets the skin afterwards as separate bits - they were too complicated to try and fold in.. ..painted and assembled.. you might just be able to see the fuel gauges... ..all the floor parts are wood so I stuck them to some marquetry ply -it's very thin & perfect for the job... ..then all the fixing holes were drilled out and lead wire threaded through... ..soon all the panels were finished.. ..painted and with wear added where flying boots rub against the floor pounding the rudder pedals... ..also added the two controls by the fuel gauge holes - one says hot air & the other defroster so I assume they direct hot air from the engine (the red knobs need matt varnish yet..)... ..and mocked up in place... ..the cockpit pod is coming along and represents a lot of the effort in the model.. ..control column next TTFN Peter
  14. airscale

    1/18 P51C Mustang "Lopes Hope 3rd"

    thanks folks & good evening ,,a bit more done over the weekend.. ..this is the sidewall of lopes Hope - as you can see there is lots going on, so pert of the process is deconstructing what you see into small assemblies.. I had most of the structural work done, so time to prime with etch primer.. ..one side.. ..and the other - this is the side you see above in the real one.. ..after painting green, I started to add some of the fittings and decals including the pedestal... ..and on the other side, some of the switchgear.. ..a couple of small control units were needed so I made these and prepared a number of watch parts for the fittings... ..making these convinced me I needed a 3D printer from santa this year as I could have just knocked them up... ..I also made and added these inner parts to the main longeron at the cockpit sill - the brass 'H' section I used was 0.5mm too small and that was enough to mean all the decals along the side didn't fit - so I took the drawings and scaled these I could just laminate to them.. ..that meant I could really start to add in all the decals and placards... ..and a check to make sure all the subassemblies go together to make the cockpit pod.. ..should be moving onto the floor, rudder pedals and control stick next... TTFN Peter
  15. airscale

    1/18 P51C Mustang "Lopes Hope 3rd"

    So, evening all Its been a while, so now Telford is out of the way I start to get my mojo back. It was great to meet up with everyone and I still can't believe we sold out of our show stock for the new HK Lancaster cockpit set ..next up for Lopes Hope is the sidewall completion so I can prime & paint the main structures before fetailing them.. seen here left to right - the low shelf down by the side of the seat holds the signal flares, the star shaped thing sticking into the fuselage ay the mid point is the mounting plate for the signal pistol (I think the pilot shot through it, but don't recall seeing big holes on the outside of the airframe?), and on the far lower right is a sort of triangular curved lever housing which is the bomb control selector... (with a red handle top..) ..these were the next bits up onto the bench.. ..the low shelf was created from plan drawings put together in different colours so I knew where the folds were - these were then stuck to litho to be cut out.. ..folded, finished & with the metal parts of the holder added.. ..same process for the flare gun holder - the part was drawn & scaled - some dents were made around the inner hole with a screwdriver and the part cut out.. ..I forgot to take pics of the finished part, but you can see it mounted here on the sidewall along with the shelf.. ..and test fitted with the completed pedestal... ..the bomb selector lever housing was made by using a PE template to make a plug I can vacform over.. ..lots of plastic to get one little part... ..trimmed & with details added this will be primed & painted before adding metal internals and the lever itself.. ..I also made the panel the housing sits on - this side is nearly ready for painting.. ..good to be back at it TTFN Peter
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