1973 Yardley McLaren M23 1/20 scale retro-fit

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pete
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1973 Yardley McLaren M23 1/20 scale retro-fit

Post by pete »

Back in the early mid 1970’s after getting married, I built a few of the Tamiya 1/12 scale F1 cars. The first one I did, and therefore closest to my heart, was the 1974 McLaren M23 car with the Yardley livery. It was a rather simple design, but I always liked the pure white body with the McLaren Orange side panel and three color Yardley “Y” on the nose. Those 1/12 models are long gone now, but I have a few photo slides I took of them on a picnic table one afternoon so they will never be forgotten.

The other day I was looking at the pictures (slides, actually) and the thought occurred to me that since I have a couple of the Tamiya 1/20 scale 1976 McLaren M23 kits on the shelf that it may not be that difficult to retro fit one of them back to a 1973 spec. car. I figured the hardest part would be the decals, since I was not certain they were available. After a quick look at the “Indycal” web site I found the set in 1/20 scale for the Peter Revson number 8 car. The 1/12 scale car I built originally was the 1974 Mike Hailwood number 33 car and it had a rather tall smooth air intake box. The 1/20 scale car here is the number 8 Peter Revson version which had a significantly different shaped air scoop.

I began doing some book and computer research and found many pictures of the car in its original and restored versions. I placed more “weight” on the original pictures, but because the shots were generally of the car at a distance these only served to get the “look” and decal placement as correct as possible. To figure out the smaller details I had to rely on the close-up detail shots of the restored vehicle, so therefore the model details are based more on the restored car pictures. Just a word of caution here……..I am not what you would call a “rivet counter” by any stretch of the imagination….so I am not looking to have every single wire, hose and rivet on this build. I want the model to look and feel right, but don’t expect every tiny detail to be in place……..my “patience” just will not allow that any more. Further, I get bored working on one build too long so I need to move the process along………and because of that, many details just get lost in the smoke….sorry, but that’s just the way it is.

I have to also state here that many of the modifications were “eyeballed” since I did not have the exact measurements for many components on this car…..actually; the wheelbase (101 inches) was the only real spec. along with track width that I could effectively use.

So, rather than bore you guys with all of the detail modifications I made, just know that every panel and facet of the car was modified, strictly by “Eye-ball” engineering. The air scoop was the most reworked piece on the car (and yes, in hindsight, it looks to be just a tiny, tinny bit too low in the area between the scoop body and the mailbox…..sorry) with about 95% of it scratch built. The oil coolers were remounted in the rear and the radiators were made from sheet styrene with photo-etch HO train walkways over the top. The rear wing was converted from a “Vee” design to a flat smooth front and the support was rebuilt to reflect the angled set up. Rather than spend a gazillion dollars on machined tube couplings, I got some cheap silver “crimp tube” kids’ jewelry pieces and painted them with clear red and blue paint. I had to vacuum-form a new shorter windscreen with the correct slope in the front.

The driver is a Tamiya guy with hand painted scallops in red and blue and a road way “R” in front to basically replicate Peter Revsons’ helmet. I wanted to as closely as possible build the winning car from the 1973 British GP but found no close-up shots to work from.

With all of the talk about the 1/12 scale Tamiya Yardley McLaren out there my timing is just right to have finished this one. Like I said before, I cut some corners with the details, but over all I am happy with the result………it looks and feels right to my eyes.

As a little side note…..the Indycal decals are very thin and delicate to work with, which is great, and you must be very careful. I did not clear coat the number 8 decals on the side pod right away, thinking that they would be ok…….wrong……..after a day I happened to look at the decal number 8’s and saw that they had self-destructed into a hundred little spec’s of black powder……..fortunately, my brother is a graphic sign maker and has the software and vinyl cutter so we rebuilt the number 8 and the two side pod 8’s on this car were cut out of vinyl and applied to the car directly…………..I just thought I would point that out since I was really upset with my stupidity.


Here is an overview of the car………..

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Front view…….
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Driver (Revson) with the cowling off………. Image

The engine area………
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Driver….reverse side……..
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Back side…...what everyone got to see at Silverstone in 1973……..
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daveyman
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Re: 1973 Yardley McLaren M23 1/20 scale retro-fit

Post by daveyman »

Interesting work and a nice result. I've been looking at pictures of the Yardley Mclaren recently and I'd never really noticed the Mclaren orange before. A nice touch. The detail on the engine looks very nice but I would ask if the rear wing is level, looks a bit slanted from the rear view, maybe an optical illusion...
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Re: 1973 Yardley McLaren M23 1/20 scale retro-fit

Post by Eagle50 »

Beautiful! Nice scratch build on the top air scoop, too! And the piping detail looks believable. (I'm no rivet counter either. Sometimes I just add wires, even if I don't know where they're supposed to go.)

You must be proud of your build. Thanks for sharing!

Chris
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marlborored
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Re: 1973 Yardley McLaren M23 1/20 scale retro-fit

Post by marlborored »

That is some eye ball you got :!: Great job :!:
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Re: 1973 Yardley McLaren M23 1/20 scale retro-fit

Post by billgtp »

Looks great. Very nice
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mhbaumer
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Re: 1973 Yardley McLaren M23 1/20 scale retro-fit

Post by mhbaumer »

Nice convertion!
Congratulations!
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rtedore
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Re: 1973 Yardley McLaren M23 1/20 scale retro-fit

Post by rtedore »

Nicely done. Great finish on the paint job.
BEST REGARDS
ROY TEDORE


"I BUILD FOR REFLECTION, NOT FOR PERFECTION"

ROY TEDORE 1993

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vekkuli
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Re: 1973 Yardley McLaren M23 1/20 scale retro-fit

Post by vekkuli »

Very nice Build & the Driver doesn't look too Plastic either :) . Is that Helmet the original Tamiya 70's?

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Re: 1973 Yardley McLaren M23 1/20 scale retro-fit

Post by MGBrown »

Very nice- great to see this model that really would have been a no brainer for Tamiya to offer when they re-released the Yardley M23 recently.

I did this exact car "back in the day" but the Canadian GP version with a bit more rounded number (I used letraset rub on numbers) Some of the other details were letraset on plain decal film then coated with clear spray enamel. I didn't have a way to make the drivers name script decal so I freehanded it directly on the airbox with a "sharpie" :shock: I wish I had hands that steady today.

My old build isn't as nice as your new one- maybe I'll revisit it and do some updating? It could probably use some air being in the display case all these years.

BTW I also did Fittipaldi's high airbox Marble-row version with the parts left over... not sure where that model ended up. :(
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